{"id":330,"date":"2024-01-06T15:30:21","date_gmt":"2023-05-21T22:54:48","guid":{"rendered":"https:\/\/www.silicloud.com\/zh\/blog\/index.php\/2023\/11\/30\/%e5%a6%82%e4%bd%95%e5%9c%a8ubuntu-22-04%e4%b8%8a%e4%bd%bf%e7%94%a8node-js%e4%bd%bf%e7%94%a8sqlite\/"},"modified":"2025-08-01T23:14:20","modified_gmt":"2025-08-01T15:14:20","slug":"%e5%a6%82%e4%bd%95%e5%9c%a8ubuntu-22-04%e4%b8%8a%e4%bd%bf%e7%94%a8node-js%e4%bd%bf%e7%94%a8sqlite","status":"publish","type":"post","link":"https:\/\/www.silicloud.com\/zh\/blog\/%e5%a6%82%e4%bd%95%e5%9c%a8ubuntu-22-04%e4%b8%8a%e4%bd%bf%e7%94%a8node-js%e4%bd%bf%e7%94%a8sqlite\/","title":{"rendered":"Ubuntu 22.04\u4e0bNode.js\u4e0eSQLite\u96c6\u6210\u5b8c\u5168\u6307\u5357"},"content":{"rendered":"<h3>\u7b80\u4ecb<\/h3>\n<p>SQLite\u662f\u4e00\u79cd\u6d41\u884c\u7684\u5f00\u6e90SQL\u6570\u636e\u5e93\u5f15\u64ce\uff0c\u7528\u4e8e\u5b58\u50a8\u6570\u636e\u3002\u5b83\u662f\u65e0\u670d\u52a1\u5668\u7684\uff0c\u610f\u5473\u7740\u5b83\u4e0d\u9700\u8981\u670d\u52a1\u5668\u8fd0\u884c\uff0c\u800c\u662f\u5c06\u6570\u636e\u8bfb\u5199\u5230\u8ba1\u7b97\u673a\u786c\u76d8\u4e0a\u7684\u6587\u4ef6\u4e2d\u3002\u6b64\u5916\uff0cSQLite\u4e0d\u9700\u8981\u4efb\u4f55\u914d\u7f6e\uff0c\u8fd9\u4f7f\u5b83\u66f4\u52a0\u4fbf\u643a\uff0c\u6210\u4e3a\u5d4c\u5165\u5f0f\u7cfb\u7edf\u3001\u684c\u9762\/\u79fb\u52a8\u5e94\u7528\u548c\u539f\u578b\u5236\u4f5c\u7b49\u9886\u57df\u7684\u6d41\u884c\u9009\u62e9\u3002<\/p>\n<p>\u8981\u5728Node.js\u4e2d\u4f7f\u7528SQLite\uff0c\u60a8\u9700\u8981\u4e00\u4e2a\u8fde\u63a5\u5230SQLite\u6570\u636e\u5e93\u5e76\u5c06\u5e94\u7528\u7a0b\u5e8f\u4e2d\u7684SQL\u8bed\u53e5\u53d1\u9001\u5230\u6570\u636e\u5e93\u4ee5\u6267\u884c\u7684\u6570\u636e\u5e93\u5ba2\u6237\u7aef\u3002\u5176\u4e2d\u4e00\u4e2a\u53d7\u6b22\u8fce\u7684\u9009\u62e9\u662fnode-sqlite3\u5305\uff0c\u5b83\u63d0\u4f9b\u4e86SQLite 3\u7684\u5f02\u6b65\u7ed1\u5b9a\u3002<\/p>\n<p>\u5728\u672c\u6559\u7a0b\u4e2d\uff0c\u60a8\u5c06\u4f7f\u7528node-sqlite3\u521b\u5efa\u4e0eSQLite\u6570\u636e\u5e93\u7684\u8fde\u63a5\u3002\u63a5\u4e0b\u6765\uff0c\u60a8\u5c06\u521b\u5efa\u4e00\u4e2aNode.js\u5e94\u7528\u7a0b\u5e8f\uff0c\u5728\u6570\u636e\u5e93\u4e2d\u521b\u5efa\u4e00\u4e2a\u8868\u5e76\u63d2\u5165\u6570\u636e\u3002\u6700\u540e\uff0c\u60a8\u5c06\u4fee\u6539\u5e94\u7528\u7a0b\u5e8f\uff0c\u4f7f\u7528node-sqlite3\u4ece\u6570\u636e\u5e93\u4e2d\u68c0\u7d22\u3001\u66f4\u65b0\u548c\u5220\u9664\u6570\u636e\u3002<\/p>\n<h2>\u5148\u51b3\u6761\u4ef6<\/h2>\n<p>\u8981\u6309\u7167\u8fd9\u4e2a\u6559\u7a0b\u8fdb\u884c\u64cd\u4f5c\uff0c\u60a8\u9700\u8981\u51c6\u5907\u4ee5\u4e0b\u7269\u54c1\uff1a<\/p>\n<ul class=\"post-ul\">\n<li>\u5728\u60a8\u7684\u7cfb\u7edf\u4e0a\u8bbe\u7f6eNode.js\u5f00\u53d1\u73af\u5883\u3002\u5982\u679c\u60a8\u4f7f\u7528\u7684\u662fUbuntu 22.04\uff0c\u8bf7\u6309\u7167\u6211\u4eec\u7684\u6559\u7a0b\u300a\u5982\u4f55\u5728Ubuntu 22.04\u4e0a\u5b89\u88c5Node.js\u300b\u4e2d\u7684\u9009\u98793\u5b89\u88c5\u6700\u65b0\u7248\u672c\u7684Node.js\u3002\u5bf9\u4e8e\u5176\u4ed6\u7cfb\u7edf\uff0c\u8bf7\u53c2\u8003\u6211\u4eec\u7684\u6559\u7a0b\u7cfb\u5217\u300a\u5982\u4f55\u5b89\u88c5Node.js\u5e76\u521b\u5efa\u672c\u5730\u5f00\u53d1\u73af\u5883\u300b\u3002<\/li>\n<li>\u5728\u60a8\u7684\u5f00\u53d1\u73af\u5883\u4e2d\u5b89\u88c5SQLite3\u3002\u8bf7\u6309\u7167\u6211\u4eec\u7684\u6559\u7a0b\u300a\u5982\u4f55\u5728Ubuntu 20.04\u4e0a\u5b89\u88c5\u548c\u4f7f\u7528SQLite\u300b\u7684\u6b65\u9aa41\u8fdb\u884c\u64cd\u4f5c\u3002<\/li>\n<li>\u5177\u5907\u521b\u5efa\u8868\u548c\u7f16\u5199SQL\u67e5\u8be2\u4ee5\u68c0\u7d22\u548c\u4fee\u6539\u8868\u4e2d\u6570\u636e\u7684\u57fa\u672c\u77e5\u8bc6\u3002\u8bf7\u6309\u7167\u6211\u4eec\u7684\u6559\u7a0b\u300a\u5982\u4f55\u5728Ubuntu 20.04\u4e0a\u5b89\u88c5\u548c\u4f7f\u7528SQLite\u300b\u7684\u6b65\u9aa42\u81f3\u6b65\u9aa46\u8fdb\u884c\u64cd\u4f5c\u3002<\/li>\n<li>\u719f\u6089\u5982\u4f55\u7f16\u5199Node.js\u7a0b\u5e8f\uff0c\u60a8\u53ef\u4ee5\u5728\u6211\u4eec\u7684\u6559\u7a0b\u300a\u5982\u4f55\u5728Node.js\u4e2d\u7f16\u5199\u548c\u8fd0\u884c\u60a8\u7684\u7b2c\u4e00\u4e2a\u7a0b\u5e8f\u300b\u4e2d\u627e\u5230\u76f8\u5173\u4fe1\u606f\u3002<\/li>\n<\/ul>\n<h2>\u7b2c\u4e00\u6b65 &#8211; \u8bbe\u7f6e\u9879\u76ee\u76ee\u5f55<\/h2>\n<p>\u5728\u8fd9\u4e2a\u6b65\u9aa4\u4e2d\uff0c\u60a8\u5c06\u521b\u5efa\u9879\u76ee\u76ee\u5f55\u5e76\u5c06node-sqlite3\u4f5c\u4e3a\u4f9d\u8d56\u4e0b\u8f7d\u3002<\/p>\n<p>\u9996\u5148\uff0c\u4f7f\u7528mkdir\u547d\u4ee4\u521b\u5efa\u4e00\u4e2a\u76ee\u5f55\u3002\u8fd9\u4e2a\u6559\u7a0b\u5c06\u5176\u79f0\u4e3asqlite_demo\uff0c\u4f46\u4f60\u53ef\u4ee5\u7528\u4f60\u9009\u62e9\u7684\u540d\u79f0\u66ff\u6362\u5b83\u3002<\/p>\n<pre class=\"post-pre\"><code><\/code><\/pre>\n<ol>\n<li data-prefix=\"$\"><span class=\"token function\">mkdir<\/span> <mark>sqlite_demo<\/mark><\/li>\n<\/ol>\n<pre class=\"post-pre\"><code><\/code><\/pre>\n<p>&nbsp;<\/p>\n<pre class=\"post-pre\"><code><\/code><\/pre>\n<p>\u63a5\u4e0b\u6765\uff0c\u4f7f\u7528cd\u547d\u4ee4\u5207\u6362\u5230\u65b0\u521b\u5efa\u7684\u76ee\u5f55\u3002<\/p>\n<pre class=\"post-pre\"><code><\/code><\/pre>\n<ol>\n<li data-prefix=\"$\"><span class=\"token builtin class-name\">cd<\/span> <mark>sqlite_demo<\/mark><\/li>\n<\/ol>\n<pre class=\"post-pre\"><code><\/code><\/pre>\n<p>&nbsp;<\/p>\n<pre class=\"post-pre\"><code><\/code><\/pre>\n<p>\u4f7f\u7528npm\u547d\u4ee4\u5c06\u9879\u76ee\u76ee\u5f55\u521d\u59cb\u5316\u4e3anpm\u5305\u3002<\/p>\n<pre class=\"post-pre\"><code><\/code><\/pre>\n<ol>\n<li data-prefix=\"$\"><span class=\"token function\">npm<\/span> init <span class=\"token parameter variable\">-y<\/span><\/li>\n<\/ol>\n<pre class=\"post-pre\"><code><\/code><\/pre>\n<p>&nbsp;<\/p>\n<pre class=\"post-pre\"><code><\/code><\/pre>\n<p>\u8be5\u547d\u4ee4\u521b\u5efa\u4e00\u4e2apackage.json\u6587\u4ef6\uff0c\u5176\u4e2d\u5305\u542b\u4e86\u9879\u76ee\u7684\u91cd\u8981\u5143\u6570\u636e\u3002-y\u9009\u9879\u544a\u8bc9npm\u63a5\u53d7\u6240\u6709\u9ed8\u8ba4\u8bbe\u7f6e\u3002<\/p>\n<p>\u8fd0\u884c\u547d\u4ee4\u540e\uff0c\u4ee5\u4e0b\u8f93\u51fa\u5c06\u663e\u793a\u5728\u60a8\u7684\u5c4f\u5e55\u4e0a\uff1a<\/p>\n<pre class=\"post-pre\"><code><\/code><\/pre>\n<div class=\"secondary-code-label\" title=\"\u8f93\u51fa\">\u8f93\u51fa<\/p>\n<pre class=\"post-pre\"><code><\/code><\/pre>\n<p>\u5df2\u5199\u5165 \/home\/<mark>sammy<\/mark>\/<mark>sqlite_demo<\/mark>\/package.json: { &#8220;name&#8221;: &#8220;sqlite_demo&#8221;, &#8220;version&#8221;: &#8220;1.0.0&#8221;, &#8220;description&#8221;: &#8220;&#8221;, &#8220;main&#8221;: &#8220;index.js&#8221;, &#8220;scripts&#8221;: { &#8220;test&#8221;: &#8220;echo \\&#8221;Error: no test specified\\&#8221; &#038;&#038; exit 1&#8243; }, &#8220;keywords&#8221;: [], &#8220;author&#8221;: &#8220;&#8221;, &#8220;license&#8221;: &#8220;ISC&#8221; }<\/p>\n<pre class=\"post-pre\"><code><\/code><\/pre>\n<p>\u8f93\u51fa\u7ed3\u679c\u8868\u660e\u5df2\u521b\u5efa\u4e86package.json\u6587\u4ef6\uff0c\u5176\u4e2d\u5305\u542b\u8bb0\u5f55\u9879\u76ee\u91cd\u8981\u5143\u6570\u636e\u7684\u5c5e\u6027\u3002\u5176\u4e2d\u4e00\u4e9b\u91cd\u8981\u9009\u9879\u5305\u62ec\uff1a<\/p>\n<ul class=\"post-ul\">\n<li>name: \u60a8\u7684\u9879\u76ee\u540d\u79f0\u3002<\/li>\n<li>version: \u60a8\u7684\u9879\u76ee\u7248\u672c\u3002<\/li>\n<li>main: \u60a8\u9879\u76ee\u7684\u8d77\u59cb\u70b9\u3002<\/li>\n<\/ul>\n<p>\u60a8\u53ef\u4ee5\u4fdd\u7559\u9ed8\u8ba4\u9009\u9879\uff0c\u4f46\u53ef\u4ee5\u6839\u636e\u4e2a\u4eba\u559c\u597d\u4fee\u6539\u5c5e\u6027\u503c\u3002\u5982\u9700\u4e86\u89e3\u66f4\u591a\u5c5e\u6027\u4fe1\u606f\uff0c\u8bf7\u53c2\u8003npm\u7684package.json\u6587\u6863\u3002<\/p>\n<p>\u63a5\u4e0b\u6765\uff0c\u4f7f\u7528npm install\u547d\u4ee4\u5b89\u88c5node-sqlite3\u8f6f\u4ef6\u5305\u3002<\/p>\n<pre class=\"post-pre\"><code><\/code><\/pre>\n<ol>\n<li data-prefix=\"$\"><span class=\"token function\">npm<\/span> <span class=\"token function\">install<\/span> sqlite3<\/li>\n<\/ol>\n<pre class=\"post-pre\"><code><\/code><\/pre>\n<p>&nbsp;<\/p>\n<pre class=\"post-pre\"><code><\/code><\/pre>\n<p>\u5b89\u88c5\u8f6f\u4ef6\u5305\u540e\uff0c\u8f93\u51fa\u5c06\u5982\u4e0b\u663e\u793a\uff1a<\/p>\n<pre class=\"post-pre\"><code><\/code><\/pre>\n<div class=\"secondary-code-label\" title=\"\u8f93\u51fa\">\u8f93\u51fa<\/p>\n<pre class=\"post-pre\"><code><\/code><\/pre>\n<p>\u6dfb\u52a0\u4e86104\u4e2a\u5305\uff0c\u5e76\u57289\u79d2\u5185\u5ba1\u8ba1\u4e86105\u4e2a\u5305 5\u4e2a\u5305\u6b63\u5728\u5bfb\u627e\u8d44\u91d1 \u8fd0\u884c `npm fund` \u4e86\u89e3\u8be6\u60c5 \u53d1\u73b00\u4e2a\u6f0f\u6d1e<\/p>\n<pre class=\"post-pre\"><code><\/code><\/pre>\n<p>\u73b0\u5728\u4f60\u5df2\u7ecf\u5b89\u88c5\u4e86node-sqlite3\uff0c\u4f60\u5c06\u5728\u4e0b\u4e00\u8282\u4e2d\u4f7f\u7528\u5b83\u6765\u8fde\u63a5SQLite\u6570\u636e\u5e93\u3002<\/p>\n<h2>\u6b65\u9aa42 &#8211; \u8fde\u63a5\u5230SQLite\u6570\u636e\u5e93<\/h2>\n<p>\u5728\u8fd9\u4e00\u6b65\u4e2d\uff0c\u60a8\u5c06\u4f7f\u7528node-sqlite3\u5c06\u60a8\u7684Node.js\u7a0b\u5e8f\u4e0e\u4e00\u4e2a\u5305\u542b\u4e0d\u540c\u9ca8\u9c7c\u53ca\u5176\u5c5e\u6027\u7684SQLite\u6570\u636e\u5e93\u8fde\u63a5\u8d77\u6765\u3002\u8981\u5efa\u7acb\u6570\u636e\u5e93\u8fde\u63a5\uff0cnode-sqlite3\u5305\u63d0\u4f9b\u4e86\u4e00\u4e2aDatabase\u7c7b\u3002\u5f53\u5b9e\u4f8b\u5316\u8be5\u7c7b\u65f6\uff0c\u8be5\u7c7b\u4f1a\u5728\u60a8\u7684\u8ba1\u7b97\u673a\u786c\u76d8\u4e0a\u521b\u5efa\u4e00\u4e2aSQLite\u6570\u636e\u5e93\u6587\u4ef6\u5e76\u8fde\u63a5\u5230\u5b83\u3002\u4e00\u65e6\u5efa\u7acb\u4e86\u8fde\u63a5\uff0c\u60a8\u5c06\u4e3a\u5e94\u7528\u7a0b\u5e8f\u521b\u5efa\u4e00\u4e2a\u8868\uff0c\u5728\u540e\u9762\u7684\u90e8\u5206\u4e2d\u60a8\u5c06\u4f7f\u7528\u8be5\u8868\u6765\u63d2\u5165\u3001\u68c0\u7d22\u6216\u66f4\u65b0\u6570\u636e\u3002<\/p>\n<p>\u4f7f\u7528nano\u6216\u8005\u4f60\u559c\u6b22\u7684\u6587\u672c\u7f16\u8f91\u5668\uff0c\u521b\u5efa\u5e76\u6253\u5f00db.js\u6587\u4ef6\u3002<\/p>\n<pre class=\"post-pre\"><code><\/code><\/pre>\n<ol>\n<li data-prefix=\"$\"><span class=\"token function\">nano<\/span> db.js<\/li>\n<\/ol>\n<pre class=\"post-pre\"><code><\/code><\/pre>\n<p>&nbsp;<\/p>\n<pre class=\"post-pre\"><code><\/code><\/pre>\n<p>\u5728\u4f60\u7684db.js\u6587\u4ef6\u4e2d\uff0c\u6dfb\u52a0\u4ee5\u4e0b\u4ee3\u7801\u6765\u5efa\u7acb\u4e0eSQLite\u6570\u636e\u5e93\u7684\u8fde\u63a5\u3002<\/p>\n<div>sqlite_demo\/db.js\u6587\u4ef6<\/div>\n<p>\u8fd9\u662f\u6587\u7ae0\u300a\u5982\u4f55\u5728Ubuntu 22.04\u4e0a\u4f7f\u7528Node.js\u4f7f\u7528SQLite\u300b\u7684\u7b2c2\u90e8\u5206\uff08\u517115\u90e8\u5206\uff09\u3002<\/p>\n<pre class=\"post-pre\"><code><span class=\"token keyword\">const<\/span> sqlite3 <span class=\"token operator\">=<\/span> <span class=\"token function\">require<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">\"sqlite3\"<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">.<\/span><span class=\"token function\">verbose<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span>\r\n<span class=\"token keyword\">const<\/span> filepath <span class=\"token operator\">=<\/span> <span class=\"token string\">\".\/fish.db\"<\/span><span class=\"token punctuation\">;<\/span>\r\n\r\n<span class=\"token keyword\">function<\/span> <span class=\"token function\">createDbConnection<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/span>\r\n  <span class=\"token keyword\">const<\/span> db <span class=\"token operator\">=<\/span> <span class=\"token keyword\">new<\/span> <span class=\"token class-name\">sqlite3<span class=\"token punctuation\">.<\/span>Database<\/span><span class=\"token punctuation\">(<\/span>filepath<span class=\"token punctuation\">,<\/span> <span class=\"token punctuation\">(<\/span><span class=\"token parameter\">error<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token operator\">=&gt;<\/span> <span class=\"token punctuation\">{<\/span>\r\n    <span class=\"token keyword\">if<\/span> <span class=\"token punctuation\">(<\/span>error<span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/span>\r\n      <span class=\"token keyword\">return<\/span> console<span class=\"token punctuation\">.<\/span><span class=\"token function\">error<\/span><span class=\"token punctuation\">(<\/span>error<span class=\"token punctuation\">.<\/span>message<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span>\r\n    <span class=\"token punctuation\">}<\/span>\r\n  <span class=\"token punctuation\">}<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span>\r\n  console<span class=\"token punctuation\">.<\/span><span class=\"token function\">log<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">\"\u4e0eSQLite\u7684\u8fde\u63a5\u5df2\u5efa\u7acb\"<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span>\r\n  <span class=\"token keyword\">return<\/span> db<span class=\"token punctuation\">;<\/span>\r\n<span class=\"token punctuation\">}<\/span>\r\n<\/code><\/pre>\n<p>\u5728\u7b2c\u4e00\u884c\u4e2d\uff0c\u5c06node-sqlite3\u6a21\u5757\u5f15\u5165\u5230\u60a8\u7684\u7a0b\u5e8f\u6587\u4ef6\u4e2d\u3002\u5728\u7b2c\u4e8c\u884c\u4e2d\uff0c\u4f7f\u7528\u60a8\u60f3\u8981SQLite\u6570\u636e\u5e93\u6240\u5728\u7684\u8def\u5f84\u548c\u6570\u636e\u5e93\u6587\u4ef6\u7684\u540d\u79f0\uff08\u5728\u8fd9\u79cd\u60c5\u51b5\u4e0b\u662ffish.db\uff09\u8bbe\u7f6e\u53d8\u91cffilepath\u3002<\/p>\n<p>\u5728\u4e0b\u4e00\u884c\u4e2d\uff0c\u60a8\u5b9a\u4e49\u4e86createDbConnection()\u51fd\u6570\uff0c\u8be5\u51fd\u6570\u4e0eSQLite\u6570\u636e\u5e93\u5efa\u7acb\u8fde\u63a5\u3002\u5728\u51fd\u6570\u5185\u90e8\uff0c\u60a8\u4f7f\u7528new\u5173\u952e\u5b57\u5b9e\u4f8b\u5316\u4e86sqlite3.Database()\u7c7b\u3002\u8be5\u7c7b\u63a5\u53d7\u4e24\u4e2a\u53c2\u6570\uff1a\u6587\u4ef6\u8def\u5f84\u548c\u56de\u8c03\u51fd\u6570\u3002<\/p>\n<p>\u7b2c\u4e00\u4e2a\u53c2\u6570\u662f\u6587\u4ef6\u8def\u5f84\uff0c\u63a5\u53d7SQLite\u6570\u636e\u5e93\u7684\u540d\u79f0\u548c\u8def\u5f84\uff0c\u8fd9\u91cc\u662f.\/fish.db\u3002\u7b2c\u4e8c\u4e2a\u53c2\u6570\u662f\u56de\u8c03\u51fd\u6570\uff0c\u5728\u6570\u636e\u5e93\u88ab\u521b\u5efa\u5e76\u5efa\u7acb\u6570\u636e\u5e93\u8fde\u63a5\u540e\u8fd0\u884c\u3002\u56de\u8c03\u51fd\u6570\u63a5\u53d7\u4e00\u4e2a\u9519\u8bef\u53c2\u6570\uff0c\u5982\u679c\u5c1d\u8bd5\u5efa\u7acb\u6570\u636e\u5e93\u8fde\u63a5\u65f6\u53d1\u751f\u9519\u8bef\uff0c\u8fd9\u4e2a\u53c2\u6570\u5c06\u88ab\u8bbe\u4e3a\u4e00\u4e2a\u9519\u8bef\u5bf9\u8c61\u3002\u5728\u56de\u8c03\u51fd\u6570\u4e2d\uff0c\u4f60\u53ef\u4ee5\u4f7f\u7528if\u8bed\u53e5\u68c0\u67e5\u662f\u5426\u6709\u9519\u8bef\u53d1\u751f\u3002\u5982\u679c\u6761\u4ef6\u4e3a\u771f\uff0c\u4f60\u53ef\u4ee5\u4f7f\u7528console.error()\u65b9\u6cd5\u8bb0\u5f55\u9519\u8bef\u6d88\u606f\u3002<\/p>\n<p>\u73b0\u5728\uff0c\u5f53\u4f60\u4f7f\u7528sqlite3.Database()\u7c7b\u521b\u5efa\u4e00\u4e2a\u5b9e\u4f8b\u65f6\uff0c\u5b83\u4f1a\u5728\u4f60\u7684\u9879\u76ee\u76ee\u5f55\u4e2d\u521b\u5efa\u4e00\u4e2aSQLite\u6570\u636e\u5e93\u6587\u4ef6\uff0c\u5e76\u8fd4\u56de\u4e00\u4e2a\u5b58\u50a8\u5728db\u53d8\u91cf\u4e2d\u7684\u6570\u636e\u5e93\u5bf9\u8c61\u3002\u8be5\u6570\u636e\u5e93\u5bf9\u8c61\u63d0\u4f9b\u4e86\u53ef\u4ee5\u7528\u6765\u4f20\u9012SQL\u8bed\u53e5\u6765\u521b\u5efa\u8868\u683c\u4ee5\u53ca\u63d2\u5165\u3001\u68c0\u7d22\u6216\u4fee\u6539\u6570\u636e\u7684\u65b9\u6cd5\u3002<\/p>\n<p>\u6700\u540e\uff0c\u4f60\u4f7f\u7528console.log()\u6765\u8f93\u51fa\u6210\u529f\u6d88\u606f\uff0c\u5e76\u5c06db\u53d8\u91cf\u4e2d\u7684\u6570\u636e\u5e93\u5bf9\u8c61\u8fd4\u56de\u3002<\/p>\n<p>\u63a5\u4e0b\u6765\uff0c\u5c06\u9ad8\u4eae\u4ee3\u7801\u6dfb\u52a0\u5230\u521b\u5efa\u8868\u683c\u7684\u51fd\u6570\u4e2d\u3002<\/p>\n<div>sqlite_demo\/db.js \u7684\u4e2d\u6587\u7ffb\u8bd1\uff1asqlite_demo\/\u6570\u636e\u5e93.js<\/div>\n<pre class=\"post-pre\"><code><span class=\"token operator\">...<\/span>\r\n<span class=\"token keyword\">function<\/span> <span class=\"token function\">createDbConnection<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/span>\r\n    <span class=\"token operator\">...<\/span>\r\n<span class=\"token punctuation\">}<\/span>\r\n\r\n<mark><span class=\"token keyword\">function<\/span> <span class=\"token function\">createTable<\/span><span class=\"token punctuation\">(<\/span><span class=\"token parameter\">db<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/span><\/mark>\r\n  <mark>db<span class=\"token punctuation\">.<\/span><span class=\"token function\">exec<\/span><span class=\"token punctuation\">(<\/span><\/mark><span class=\"token template-string\"><span class=\"token template-punctuation string\">`<\/span><span class=\"token string\">\r\n  <mark>CREATE TABLE sharks<\/mark>\r\n  <mark>(<\/mark>\r\n    <mark>ID INTEGER PRIMARY KEY AUTOINCREMENT,<\/mark>\r\n    <mark>name   VARCHAR(50) NOT NULL,<\/mark>\r\n    <mark>color   VARCHAR(50) NOT NULL,<\/mark>\r\n    <mark>weight INTEGER NOT NULL<\/mark>\r\n  <mark>);<\/mark>\r\n<\/span><\/span><mark><span class=\"token template-string\"><span class=\"token template-punctuation string\">`<\/span><\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><\/mark>\r\n<mark><span class=\"token punctuation\">}<\/span><\/mark>\r\n<\/code><\/pre>\n<p>createTable() \u51fd\u6570\u5728 SQLite \u6570\u636e\u5e93\u4e2d\u521b\u5efa\u4e00\u4e2a\u8868\u3002\u5b83\u4ee5\u6570\u636e\u5e93\u5bf9\u8c61 db \u4f5c\u4e3a\u53c2\u6570\u3002\u5728 createTable() \u51fd\u6570\u5185\u90e8\uff0c\u4f60\u8c03\u7528\u4e86 db \u6570\u636e\u5e93\u5bf9\u8c61\u7684 exec() \u65b9\u6cd5\uff0c\u5c06\u7ed9\u5b9a\u7684 SQL \u8bed\u53e5\u53d1\u9001\u5230\u6570\u636e\u5e93\u4ee5\u4f9b\u6267\u884c\u3002exec() \u65b9\u6cd5\u4ec5\u7528\u4e8e\u4e0d\u8fd4\u56de\u7ed3\u679c\u884c\u7684\u67e5\u8be2\u3002<\/p>\n<p>\u4f20\u9012\u7ed9exec()\u65b9\u6cd5\u7684CREATE TABLE sharks&#8230; SQL\u8bed\u53e5\u521b\u5efa\u4e86\u4e00\u4e2a\u540d\u4e3asharks\u7684\u8868\uff0c\u8be5\u8868\u5177\u6709\u4ee5\u4e0b\u5b57\u6bb5:<\/p>\n<ul class=\"post-ul\">\n<li>ID: \u5b58\u50a8INTEGER\u6570\u636e\u7c7b\u578b\u7684\u503c\u3002PRIMARY KEY\u7ea6\u675f\u5c06\u8be5\u5217\u6307\u5b9a\u4e3a\u4e3b\u952e\uff0cAUTOINCREMENT\u6307\u793aSQLite\u81ea\u52a8\u4e3a\u8868\u4e2d\u7684\u6bcf\u4e00\u884c\u589e\u52a0ID\u5217\u7684\u503c\u3002<\/li>\n<li>name: \u4f7f\u7528\u6700\u5927\u957f\u5ea6\u4e3a50\u4e2a\u5b57\u7b26\u7684VARCHAR\u6570\u636e\u7c7b\u578b\u8be6\u7ec6\u8bb0\u5f55\u9ca8\u9c7c\u7684\u540d\u79f0\u3002NOT NULL\u7ea6\u675f\u786e\u4fdd\u8be5\u5b57\u6bb5\u4e0d\u80fd\u5b58\u50a8NULL\u503c\u3002<\/li>\n<li>color: \u4f7f\u7528\u6700\u5927\u957f\u5ea6\u4e3a50\u4e2a\u5b57\u7b26\u7684VARCHAR\u6570\u636e\u7c7b\u578b\u8868\u793a\u9ca8\u9c7c\u7684\u989c\u8272\u3002NOT NULL\u7ea6\u675f\u8868\u793a\u8be5\u5b57\u6bb5\u4e0d\u5e94\u63a5\u53d7NULL\u503c\u3002<\/li>\n<li>weight: \u4f7f\u7528INTEGER\u6570\u636e\u7c7b\u578b\u5b58\u50a8\u9ca8\u9c7c\u7684\u91cd\u91cf\uff08\u4ee5\u5343\u514b\u4e3a\u5355\u4f4d\uff09\uff0c\u5e76\u4f7f\u7528NOT NULL\u7ea6\u675f\u786e\u4fdd\u4e0d\u5141\u8bb8NULL\u503c\u3002<\/li>\n<\/ul>\n<p>\u5728\u540c\u4e00\u4e2adb.js\u6587\u4ef6\u4e2d\uff0c\u6dfb\u52a0\u4ee5\u4e0b\u7a81\u51fa\u663e\u793a\u7684\u4ee3\u7801\u6765\u8c03\u7528createTable()\u51fd\u6570:<\/p>\n<div>sqlite_demo\/db.js \u6587\u4ef6\u3002<\/div>\n<pre class=\"post-pre\"><code><span class=\"token keyword\">function<\/span> <span class=\"token function\">createDbConnection<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/span>\r\n  <span class=\"token keyword\">const<\/span> db <span class=\"token operator\">=<\/span> <span class=\"token keyword\">new<\/span> <span class=\"token class-name\">sqlite3<span class=\"token punctuation\">.<\/span>Database<\/span><span class=\"token punctuation\">(<\/span>filepath<span class=\"token punctuation\">,<\/span> <span class=\"token punctuation\">(<\/span><span class=\"token parameter\">error<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token operator\">=&gt;<\/span> <span class=\"token punctuation\">{<\/span>\r\n    <span class=\"token keyword\">if<\/span> <span class=\"token punctuation\">(<\/span>error<span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/span>\r\n      <span class=\"token keyword\">return<\/span> console<span class=\"token punctuation\">.<\/span><span class=\"token function\">error<\/span><span class=\"token punctuation\">(<\/span>error<span class=\"token punctuation\">.<\/span>message<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span>\r\n    <span class=\"token punctuation\">}<\/span>\r\n    <mark><span class=\"token function\">createTable<\/span><span class=\"token punctuation\">(<\/span>db<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><\/mark>\r\n  <span class=\"token punctuation\">}<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span>\r\n  console<span class=\"token punctuation\">.<\/span><span class=\"token function\">log<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">\"\u4e0eSQLite\u7684\u8fde\u63a5\u5df2\u5efa\u7acb\"<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span>\r\n  <span class=\"token keyword\">return<\/span> db<span class=\"token punctuation\">;<\/span>\r\n<span class=\"token punctuation\">}<\/span>\r\n\r\n\r\n<span class=\"token keyword\">function<\/span> <span class=\"token function\">createTable<\/span><span class=\"token punctuation\">(<\/span><span class=\"token parameter\">db<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/span>\r\n    <span class=\"token operator\">...<\/span>\r\n<span class=\"token punctuation\">}<\/span>\r\n<\/code><\/pre>\n<p>\u5f53\u56de\u8c03\u51fd\u6570\u8fd0\u884c\u65f6\uff0c\u4f60\u8c03\u7528<code>createTable()<\/code>\u51fd\u6570\uff0c\u5e76\u5c06\u6570\u636e\u5e93\u5bf9\u8c61\u4f5c\u4e3a\u53c2\u6570\u4f20\u9012\u8fdb\u53bb\u3002<\/p>\n<p>\u63a5\u4e0b\u6765\uff0c\u5c06\u4ee5\u4e0b\u4ee3\u7801\u884c\u6dfb\u52a0\u5230\u8c03\u7528<code>createDbConnection()<\/code>\u51fd\u6570\u7684\u5730\u65b9\uff1a<\/p>\n<pre class=\"post-pre\"><code>...\r\nfunction createDbConnection() {\r\n    ...\r\n}\r\n\r\n\r\nfunction createTable(db) {\r\n    ...\r\n}\r\n\r\n<mark>module.exports = createDbConnection();<\/mark>\r\n<\/code><\/pre>\n<p>\u5728\u4e4b\u524d\u7684\u4ee3\u7801\u4e2d\uff0c\u4f60\u8c03\u7528\u4e86<code>createDbConnection()<\/code>\u51fd\u6570\uff0c\u8be5\u51fd\u6570\u5efa\u7acb\u4e86\u4e0e\u6570\u636e\u5e93\u7684\u8fde\u63a5\u5e76\u8fd4\u56de\u4e00\u4e2a\u6570\u636e\u5e93\u5bf9\u8c61\u3002\u7136\u540e\u4f60\u4f7f\u7528<code>module.exports<\/code>\u5c06\u6570\u636e\u5e93\u5bf9\u8c61\u5bfc\u51fa\uff0c\u8fd9\u6837\u4f60\u5c31\u53ef\u4ee5\u5728\u5176\u4ed6\u6587\u4ef6\u4e2d\u5f15\u7528\u5b83\u3002<\/p>\n<p>\u4f60\u7684\u6587\u4ef6\u73b0\u5728\u5c06\u5305\u542b\u4ee5\u4e0b\u5185\u5bb9\uff1a<\/p>\n<div>sqlite_demo\/db.js\u7684\u4e2d\u6587\u91ca\u4e49<\/div>\n<pre class=\"post-pre\"><code><span class=\"token keyword\">const<\/span> sqlite3 <span class=\"token operator\">=<\/span> <span class=\"token function\">require<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">\"sqlite3\"<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">.<\/span><span class=\"token function\">verbose<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span>\r\n<span class=\"token keyword\">const<\/span> filepath <span class=\"token operator\">=<\/span> <span class=\"token string\">\".\/fish.db\"<\/span><span class=\"token punctuation\">;<\/span>\r\n\r\n<span class=\"token keyword\">function<\/span> <span class=\"token function\">createDbConnection<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/span>\r\n  <span class=\"token keyword\">const<\/span> db <span class=\"token operator\">=<\/span> <span class=\"token keyword\">new<\/span> <span class=\"token class-name\">sqlite3<span class=\"token punctuation\">.<\/span>Database<\/span><span class=\"token punctuation\">(<\/span>filepath<span class=\"token punctuation\">,<\/span> <span class=\"token punctuation\">(<\/span><span class=\"token parameter\">error<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token operator\">=&gt;<\/span> <span class=\"token punctuation\">{<\/span>\r\n    <span class=\"token keyword\">if<\/span> <span class=\"token punctuation\">(<\/span>error<span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/span>\r\n      <span class=\"token keyword\">return<\/span> console<span class=\"token punctuation\">.<\/span><span class=\"token function\">error<\/span><span class=\"token punctuation\">(<\/span>error<span class=\"token punctuation\">.<\/span>message<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span>\r\n    <span class=\"token punctuation\">}<\/span>\r\n    <span class=\"token function\">createTable<\/span><span class=\"token punctuation\">(<\/span>db<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span>\r\n  <span class=\"token punctuation\">}<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span>\r\n  console<span class=\"token punctuation\">.<\/span><span class=\"token function\">log<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">\"\u4e0eSQLite\u7684\u8fde\u63a5\u5df2\u5efa\u7acb\"<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span>\r\n  <span class=\"token keyword\">return<\/span> db<span class=\"token punctuation\">;<\/span>\r\n<span class=\"token punctuation\">}<\/span>\r\n\r\n<span class=\"token keyword\">function<\/span> <span class=\"token function\">createTable<\/span><span class=\"token punctuation\">(<\/span><span class=\"token parameter\">db<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/span>\r\n  db<span class=\"token punctuation\">.<\/span><span class=\"token function\">exec<\/span><span class=\"token punctuation\">(<\/span><span class=\"token template-string\"><span class=\"token template-punctuation string\">`<\/span><span class=\"token string\">\r\n  CREATE TABLE sharks\r\n  (\r\n    ID INTEGER PRIMARY KEY AUTOINCREMENT,\r\n    name   VARCHAR(50) NOT NULL,\r\n    color   VARCHAR(50) NOT NULL,\r\n    weight INTEGER NOT NULL\r\n  );\r\n<\/span><span class=\"token template-punctuation string\">`<\/span><\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span>\r\n<span class=\"token punctuation\">}<\/span>\r\n\r\nmodule<span class=\"token punctuation\">.<\/span>exports <span class=\"token operator\">=<\/span> <span class=\"token function\">createDbConnection<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span>\r\n<\/code><\/pre>\n<p>\u4fdd\u5b58\u5e76\u9000\u51fa\u6587\u4ef6\u3002\u5982\u679c\u4f7f\u7528nano\u7f16\u8f91\u5668\uff0c\u8bf7\u6309\u4e0bCTRL+X\u9000\u51fa\uff0c\u6309\u4e0by\u4fdd\u5b58\u4f60\u6240\u505a\u7684\u66f4\u6539\uff0c\u5e76\u6309\u4e0bENTER\u952e\u786e\u8ba4\u6587\u4ef6\u540d\u3002<\/p>\n<p>\u4f7f\u7528node\u547d\u4ee4\u8fd0\u884cdb.js\u6587\u4ef6\u3002<\/p>\n<pre class=\"post-pre\"><code><ol>\r\n  <li data-prefix=\"$\"><span class=\"token function\">node<\/span> db.js<\/li>\r\n<\/ol><\/code><\/pre>\n<p>\u8f93\u51fa\u7ed3\u679c\u5c06\u663e\u793a\u6570\u636e\u5e93\u8fde\u63a5\u5df2\u6210\u529f\u5efa\u7acb\u3002<\/p>\n<div class=\"secondary-code-label\" title=\"\u8f93\u51fa\">\u8f93\u51fa<\/p>\n<pre class=\"post-pre\"><code>\u4e0eSQLite\u7684\u8fde\u63a5\u5df2\u5efa\u7acb<\/code><\/pre>\n<\/div>\n<p>\u63a5\u4e0b\u6765\uff0c\u4f7f\u7528ls\u547d\u4ee4\u68c0\u67e5\u662f\u5426\u5df2\u521b\u5efafish.db\u6570\u636e\u5e93\u6587\u4ef6\u3002<\/p>\n<pre class=\"post-pre\"><code><ol>\r\n  <li data-prefix=\"$\"><span class=\"token function\">ls<\/span><\/li>\r\n<\/ol><\/code><\/pre>\n<div class=\"secondary-code-label\" title=\"\u8f93\u51fa\">\u8f93\u51fa<\/p>\n<pre class=\"post-pre\"><code><\/code><\/pre>\n<\/div>\n<pre class=\"post-pre\"><code><\/code><\/pre>\n<p>db.js <mark>fish.db<\/mark> node_modules package-lock.json package.json<\/p>\n<pre class=\"post-pre\"><code><\/code><\/pre>\n<p>\u9c7c.db\u6570\u636e\u5e93\u6587\u4ef6\u5728\u8f93\u51fa\u4e2d\u7684\u51fa\u73b0\u8bc1\u5b9e\u4e86\u6570\u636e\u5e93\u7684\u6210\u529f\u521b\u5efa\u3002<\/p>\n<p>\u73b0\u5728\uff0c\u6bcf\u6b21\u8fd0\u884cdb.js\u6587\u4ef6\uff0c\u90fd\u4f1a\u8c03\u7528createTable()\u51fd\u6570\u5728\u6570\u636e\u5e93\u4e2d\u521b\u5efa\u4e00\u5f20\u8868\u3002\u5c1d\u8bd5\u521b\u5efa\u5df2\u7ecf\u5b58\u5728\u7684\u8868\u4f1a\u89e6\u53d1SQLite\u629b\u51fa\u4e00\u4e2a\u9519\u8bef\u3002\u8981\u67e5\u770b\u8fd9\u4e00\u70b9\uff0c\u8bf7\u4f7f\u7528\u8282\u70b9\u547d\u4ee4\u91cd\u65b0\u8fd0\u884cdb.js\u6587\u4ef6\u3002<\/p>\n<pre class=\"post-pre\"><code><\/code><\/pre>\n<ol>\n<li data-prefix=\"$\"><span class=\"token function\">node<\/span> db.js<\/li>\n<\/ol>\n<pre class=\"post-pre\"><code><\/code><\/pre>\n<p>&nbsp;<\/p>\n<pre class=\"post-pre\"><code><\/code><\/pre>\n<p>\u8fd9\u4e00\u6b21\uff0c\u5728\u63a5\u4e0b\u6765\u7684\u8f93\u51fa\u4e2d\uff0c\u4f60\u5c06\u4f1a\u5f97\u5230\u4e00\u4e2a\u9519\u8bef\u3002<\/p>\n<pre class=\"post-pre\"><code><\/code><\/pre>\n<div class=\"secondary-code-label\" title=\"\u8f93\u51fa\">\u8f93\u51fa<\/p>\n<pre class=\"post-pre\"><code><\/code><\/pre>\n<p>\u5df2\u5efa\u7acb\u4e0eSQLite\u7684\u8fde\u63a5 undefined:0 [\u9519\u8bef: SQLITE_ERROR: \u9ca8\u9c7c\u8868\u5df2\u5b58\u5728 \u5728\u6570\u636e\u5e93\u5b9e\u4f8b\u4e0a\u53d1\u51fa&#8217;error&#8217;\u4e8b\u4ef6: ] { errno: 1, code: &#8216;SQLITE_ERROR&#8217; } Node.js v17.6.0<\/p>\n<pre class=\"post-pre\"><code><\/code><\/pre>\n<p>\u9519\u8bef\u4fe1\u606f\u8868\u660e\u9ca8\u9c7c\u8868\u5df2\u7ecf\u5b58\u5728\u3002\u8fd9\u662f\u56e0\u4e3a\u5f53\u60a8\u7b2c\u4e00\u6b21\u8fd0\u884c\u8282\u70b9\u547d\u4ee4\u65f6\uff0c\u9c7c\u6570\u636e\u5e93\u548c\u9ca8\u9c7c\u8868\u5df2\u7ecf\u521b\u5efa\u3002\u5f53\u60a8\u91cd\u65b0\u8fd0\u884c\u8be5\u547d\u4ee4\u65f6\uff0ccreateTable() \u51fd\u6570\u4f1a\u518d\u6b21\u8fd0\u884c\uff0c\u8fd9\u5c06\u89e6\u53d1\u9519\u8bef\uff0c\u56e0\u4e3a\u8be5\u8868\u5df2\u7ecf\u5b58\u5728\u3002<\/p>\n<p>\u6bcf\u5f53\u60a8\u60f3\u8981\u5728\u5176\u4ed6\u6587\u4ef6\u4e2d\u4f7f\u7528\u6570\u636e\u5e93\u5bf9\u8c61\u65b9\u6cd5\u64cd\u4f5c\u6570\u636e\u5e93\u65f6\uff0c\u4e5f\u4f1a\u89e6\u53d1\u6b64\u9519\u8bef\u3002\u4f8b\u5982\uff0c\u5728\u4e0b\u4e00\u6b65\u4e2d\uff0c\u60a8\u5c06\u521b\u5efa\u4e00\u4e2a\u5c06\u6570\u636e\u63d2\u5165\u6570\u636e\u5e93\u7684\u6587\u4ef6\u3002\u4e3a\u4e86\u4f7f\u7528\u6570\u636e\u5e93\u5bf9\u8c61\uff0c\u60a8\u5c06\u5bfc\u5165 db.js \u6587\u4ef6\u5e76\u8c03\u7528\u76f8\u5e94\u7684\u63d2\u5165\u6570\u636e\u65b9\u6cd5\u3002\u5f53\u60a8\u8fd0\u884c\u8be5\u6587\u4ef6\u65f6\uff0c\u5b83\u5c06\u4f9d\u6b21\u8fd0\u884c db.js\uff0c\u4ece\u800c\u89e6\u53d1\u76f8\u540c\u7684\u9519\u8bef\u3002<\/p>\n<p>\u4e3a\u4e86\u89e3\u51b3\u8fd9\u4e2a\u95ee\u9898\uff0c\u4f60\u53ef\u4ee5\u4f7f\u7528fs\u6a21\u5757\u7684existsSync()\u65b9\u6cd5\u68c0\u67e5\u9879\u76ee\u76ee\u5f55\u4e2d\u662f\u5426\u5b58\u5728\u540d\u4e3afish.db\u7684\u6570\u636e\u5e93\u6587\u4ef6\u3002\u5982\u679c\u6570\u636e\u5e93\u6587\u4ef6\u5b58\u5728\uff0c\u4f60\u5c06\u5efa\u7acb\u4e0e\u6570\u636e\u5e93\u7684\u8fde\u63a5\u800c\u4e0d\u8c03\u7528createTable()\u51fd\u6570\u3002\u5982\u679c\u4e0d\u5b58\u5728\uff0c\u4f60\u5c06\u5efa\u7acb\u8fde\u63a5\u5e76\u8c03\u7528createTable()\u51fd\u6570\u3002<\/p>\n<p>\u4e3a\u4e86\u505a\u5230\u8fd9\u4e00\u70b9\uff0c\u8bf7\u518d\u6b21\u5728\u60a8\u7684\u7f16\u8f91\u5668\u4e2d\u6253\u5f00db.js\u6587\u4ef6\u3002<\/p>\n<pre class=\"post-pre\"><code><\/code><\/pre>\n<ol>\n<li data-prefix=\"$\"><span class=\"token function\">nano<\/span> db.js<\/li>\n<\/ol>\n<pre class=\"post-pre\"><code><\/code><\/pre>\n<p>&nbsp;<\/p>\n<pre class=\"post-pre\"><code><\/code><\/pre>\n<p>\u5728\u4f60\u7684db.js\u6587\u4ef6\u4e2d\uff0c\u6dfb\u52a0\u6807\u8bb0\u4ee3\u7801\u4ee5\u68c0\u67e5\u6570\u636e\u5e93\u6587\u4ef6\u7684\u5b58\u5728\u3002<\/p>\n<pre class=\"post-pre\"><code><mark><span class=\"token keyword\">const<\/span> fs <span class=\"token operator\">=<\/span> <span class=\"token function\">require<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">\"fs\"<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><\/mark>\r\n<span class=\"token keyword\">const<\/span> sqlite3 <span class=\"token operator\">=<\/span> <span class=\"token function\">require<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">\"sqlite3\"<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">.<\/span><span class=\"token function\">verbose<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span>\r\n<span class=\"token keyword\">const<\/span> filepath <span class=\"token operator\">=<\/span> <span class=\"token string\">\".\/fish.db\"<\/span><span class=\"token punctuation\">;<\/span>\r\n\r\n<span class=\"token keyword\">function<\/span> <span class=\"token function\">createDbConnection<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/span>\r\n  <mark><span class=\"token keyword\">if<\/span> <span class=\"token punctuation\">(<\/span>fs<span class=\"token punctuation\">.<\/span><span class=\"token function\">existsSync<\/span><span class=\"token punctuation\">(<\/span>filepath<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/span><\/mark>\r\n    <mark><span class=\"token keyword\">return<\/span> <span class=\"token keyword\">new<\/span> <span class=\"token class-name\">sqlite3<span class=\"token punctuation\">.<\/span>Database<\/span><span class=\"token punctuation\">(<\/span>filepath<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><\/mark>\r\n  <mark><span class=\"token punctuation\">}<\/span> <span class=\"token keyword\">else<\/span> <span class=\"token punctuation\">{<\/span><\/mark>\r\n    <span class=\"token keyword\">const<\/span> db <span class=\"token operator\">=<\/span> <span class=\"token keyword\">new<\/span> <span class=\"token class-name\">sqlite3<span class=\"token punctuation\">.<\/span>Database<\/span><span class=\"token punctuation\">(<\/span>filepath<span class=\"token punctuation\">,<\/span> <span class=\"token punctuation\">(<\/span><span class=\"token parameter\">error<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token operator\">=&gt;<\/span> <span class=\"token punctuation\">{<\/span>\r\n      <span class=\"token keyword\">if<\/span> <span class=\"token punctuation\">(<\/span>error<span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/span>\r\n        <span class=\"token keyword\">return<\/span> console<span class=\"token punctuation\">.<\/span><span class=\"token function\">error<\/span><span class=\"token punctuation\">(<\/span>error<span class=\"token punctuation\">.<\/span>message<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span>\r\n      <span class=\"token punctuation\">}<\/span>\r\n      <span class=\"token function\">createTable<\/span><span class=\"token punctuation\">(<\/span>db<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span>\r\n    <span class=\"token punctuation\">}<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span>\r\n    console<span class=\"token punctuation\">.<\/span><span class=\"token function\">log<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">\"\u4e0eSQLite\u7684\u8fde\u63a5\u5df2\u7ecf\u5efa\u7acb\"<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span>\r\n    <span class=\"token keyword\">return<\/span> db<span class=\"token punctuation\">;<\/span>\r\n  <mark><span class=\"token punctuation\">}<\/span><\/mark>\r\n<span class=\"token punctuation\">}<\/span>\r\n<\/code><\/pre>\n<p>\u9996\u5148\uff0c\u60a8\u5bfc\u5165\u7528\u4e8e\u4e0e\u6587\u4ef6\u7cfb\u7edf\u4ea4\u4e92\u7684fs\u6a21\u5757\u3002\u5176\u6b21\uff0c\u5728\u6dfb\u52a0\u7684if\u8bed\u53e5\u4e2d\uff0c\u60a8\u8c03\u7528fs.existsSync()\u65b9\u6cd5\u6765\u68c0\u67e5\u7ed9\u5b9a\u53c2\u6570\u4e2d\u6587\u4ef6\uff08\u6b64\u5904\u4e3a.\/fish.db\uff09\u662f\u5426\u5b58\u5728\u3002\u5982\u679c\u6587\u4ef6\u5b58\u5728\uff0c\u60a8\u4f1a\u4f7f\u7528\u6570\u636e\u5e93\u6587\u4ef6\u8def\u5f84\u8c03\u7528sqlite3.Database()\uff0c\u5e76\u7701\u7565\u56de\u8c03\u51fd\u6570\u3002\u7136\u800c\uff0c\u5982\u679c\u6587\u4ef6\u4e0d\u5b58\u5728\uff0c\u60a8\u5c06\u5728\u56de\u8c03\u51fd\u6570\u4e2d\u521b\u5efa\u6570\u636e\u5e93\u5b9e\u4f8b\uff0c\u5e76\u8c03\u7528createTable()\u51fd\u6570\u6765\u521b\u5efa\u6570\u636e\u5e93\u4e2d\u7684\u8868\u3002<\/p>\n<p>\u6b64\u65f6\uff0c\u5b8c\u6574\u7684\u6587\u4ef6\u5c06\u4f1a\u5982\u4e0b\u6240\u793a\uff1a<\/p>\n<div>\n<p>sqlite_demo\/db.js<\/p>\n<p>SQLite_demo\/db.js<\/p>\n<\/div>\n<p>\u8fd9\u662f\u6587\u7ae0\u300a\u5982\u4f55\u5728Ubuntu 22.04\u4e0a\u4f7f\u7528Node.js\u4f7f\u7528SQLite\u300b\u7684\u7b2c8\u90e8\u5206\uff08\u517115\u90e8\u5206\uff09\u3002<\/p>\n<pre class=\"post-pre\"><code><span class=\"token keyword\">const<\/span> fs <span class=\"token operator\">=<\/span> <span class=\"token function\">require<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">\"fs\"<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span>\r\n<span class=\"token keyword\">const<\/span> sqlite3 <span class=\"token operator\">=<\/span> <span class=\"token function\">require<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">\"sqlite3\"<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">.<\/span><span class=\"token function\">verbose<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span>\r\n<span class=\"token keyword\">const<\/span> filepath <span class=\"token operator\">=<\/span> <span class=\"token string\">\".\/fish.db\"<\/span><span class=\"token punctuation\">;<\/span>\r\n\r\n<span class=\"token keyword\">function<\/span> <span class=\"token function\">createDbConnection<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/span>\r\n  <span class=\"token keyword\">if<\/span> <span class=\"token punctuation\">(<\/span>fs<span class=\"token punctuation\">.<\/span><span class=\"token function\">existsSync<\/span><span class=\"token punctuation\">(<\/span>filepath<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/span>\r\n    <span class=\"token keyword\">return<\/span> <span class=\"token keyword\">new<\/span> <span class=\"token class-name\">sqlite3<span class=\"token punctuation\">.<\/span>Database<\/span><span class=\"token punctuation\">(<\/span>filepath<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span>\r\n  <span class=\"token punctuation\">}<\/span> <span class=\"token keyword\">else<\/span> <span class=\"token punctuation\">{<\/span>\r\n    <span class=\"token keyword\">const<\/span> db <span class=\"token operator\">=<\/span> <span class=\"token keyword\">new<\/span> <span class=\"token class-name\">sqlite3<span class=\"token punctuation\">.<\/span>Database<\/span><span class=\"token punctuation\">(<\/span>filepath<span class=\"token punctuation\">,<\/span> <span class=\"token punctuation\">(<\/span><span class=\"token parameter\">error<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token operator\">=><\/span> <span class=\"token punctuation\">{<\/span>\r\n      <span class=\"token keyword\">if<\/span> <span class=\"token punctuation\">(<\/span>error<span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/span>\r\n        <span class=\"token keyword\">return<\/span> console<span class=\"token punctuation\">.<\/span><span class=\"token function\">error<\/span><span class=\"token punctuation\">(<\/span>error<span class=\"token punctuation\">.<\/span>message<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span>\r\n      <span class=\"token punctuation\">}<\/span>\r\n      <span class=\"token function\">createTable<\/span><span class=\"token punctuation\">(<\/span>db<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span>\r\n    <span class=\"token punctuation\">}<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span>\r\n    console<span class=\"token punctuation\">.<\/span><span class=\"token function\">log<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">\"\u5df2\u6210\u529f\u5efa\u7acb\u4e0eSQLite\u7684\u8fde\u63a5\"<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span>\r\n    <span class=\"token keyword\">return<\/span> db<span class=\"token punctuation\">;<\/span>\r\n  <span class=\"token punctuation\">}<\/span>\r\n<span class=\"token punctuation\">}<\/span>\r\n\r\n<span class=\"token keyword\">function<\/span> <span class=\"token function\">createTable<\/span><span class=\"token punctuation\">(<\/span><span class=\"token parameter\">db<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/span>\r\n  db<span class=\"token punctuation\">.<\/span><span class=\"token function\">exec<\/span><span class=\"token punctuation\">(<\/span><span class=\"token template-string\"><span class=\"token template-punctuation string\">`<\/span><span class=\"token string\">\r\n  CREATE TABLE sharks\r\n  (\r\n    ID INTEGER PRIMARY KEY AUTOINCREMENT,\r\n    name   VARCHAR(50) NOT NULL,\r\n    color   VARCHAR(50) NOT NULL,\r\n    weight INTEGER NOT NULL\r\n  );\r\n<\/span><span class=\"token template-punctuation string\">`<\/span><\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span>\r\n<span class=\"token punctuation\">}<\/span>\r\n\r\nmodule<span class=\"token punctuation\">.<\/span>exports <span class=\"token operator\">=<\/span> <span class=\"token function\">createDbConnection<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span>\r\n<\/code><\/pre>\n<p>\u5b8c\u6210\u66f4\u6539\u540e\uff0c\u8bf7\u4fdd\u5b58\u5e76\u5173\u95ed\u60a8\u7684\u6587\u4ef6\u3002<\/p>\n<p>\u4e3a\u786e\u4fdd\u591a\u6b21\u8fd0\u884cdb.js\u6587\u4ef6\u65f6\u4e0d\u4f1a\u51fa\u9519\uff0c\u8bf7\u4f7f\u7528rm\u547d\u4ee4\u5220\u9664fish.db\u6587\u4ef6\u4ee5\u91cd\u65b0\u5f00\u59cb\u3002<\/p>\n<ol>\n<li data-prefix=\"$\"><span class=\"token function\">rm<\/span> fish.db<\/li>\n<\/ol>\n<p>\u8fd0\u884cdb.js\u6587\u4ef6\u3002<\/p>\n<ol>\n<li data-prefix=\"$\"><span class=\"token function\">node<\/span> db.js<\/li>\n<\/ol>\n<div class=\"secondary-code-label\" title=\"\u8f93\u51fa\">\u8f93\u51fa<\/div>\n<pre class=\"post-pre\"><code><\/code><\/pre>\n<p>\u5df2\u5efa\u7acb\u4e0eSQLite\u7684\u8fde\u63a5<\/p>\n<pre class=\"post-pre\"><code><\/code><\/pre>\n<p>\u73b0\u5728\uff0c\u8fd0\u884cdb.js\u6587\u4ef6\u4ee5\u786e\u8ba4\u5176\u662f\u5426\u8fde\u63a5\u5230\u6570\u636e\u5e93\uff0c\u5e76\u4e14\u5728\u6240\u6709\u540e\u7eed\u91cd\u65b0\u8fd0\u884cdb.js\u6587\u4ef6\u65f6\u4e0d\u4f1a\u518d\u6b21\u5c1d\u8bd5\u521b\u5efa\u8868\u683c\u3002<\/p>\n<pre class=\"post-pre\"><code><\/code><\/pre>\n<ol>\n<li data-prefix=\"$\"><span class=\"token function\">node<\/span> db.js<\/li>\n<\/ol>\n<pre class=\"post-pre\"><code><\/code><\/pre>\n<p>&nbsp;<\/p>\n<pre class=\"post-pre\"><code><\/code><\/pre>\n<p>\u4f60\u73b0\u5728\u4f1a\u6ce8\u610f\u5230\uff0c\u4f60\u518d\u4e5f\u4e0d\u4f1a\u9047\u5230\u9519\u8bef\u4e86\u3002<\/p>\n<p>\u65e2\u7136\u4f60\u5df2\u7ecf\u5efa\u7acb\u4e86\u4e0eSQLite\u6570\u636e\u5e93\u7684\u8fde\u63a5\u5e76\u521b\u5efa\u4e86\u4e00\u4e2a\u8868\u683c\uff0c\u90a3\u4e48\u63a5\u4e0b\u6765\u4f60\u5c06\u5411\u6570\u636e\u5e93\u63d2\u5165\u6570\u636e\u3002<\/p>\n<h2>\u7b2c\u4e09\u6b65 &#8211; \u5c06\u6570\u636e\u63d2\u5165SQLite\u6570\u636e\u5e93<\/h2>\n<p>\u5728\u8fd9\u4e00\u6b65\u4e2d\uff0c\u60a8\u5c06\u4f7f\u7528node-sqlite3\u6a21\u5757\u521b\u5efa\u4e00\u4e2a\u51fd\u6570\uff0c\u4ee5\u5c06\u6570\u636e\u63d2\u5165SQLite\u6570\u636e\u5e93\u3002\u60a8\u5c06\u901a\u8fc7\u547d\u4ee4\u884c\u53c2\u6570\u5c06\u8981\u63d2\u5165\u7684\u6570\u636e\u4f20\u9012\u7ed9\u7a0b\u5e8f\u3002<\/p>\n<p>\u5728\u4f60\u7684\u6587\u672c\u7f16\u8f91\u5668\u4e2d\u521b\u5efa\u5e76\u6253\u5f00insertData.js\u6587\u4ef6\u3002<\/p>\n<pre class=\"post-pre\"><code><\/code><\/pre>\n<ol>\n<li data-prefix=\"$\"><span class=\"token function\">nano<\/span> insertData.js<\/li>\n<\/ol>\n<pre class=\"post-pre\"><code><\/code><\/pre>\n<p>&nbsp;<\/p>\n<pre class=\"post-pre\"><code><\/code><\/pre>\n<p>\u5728\u4f60\u7684insertData.js\u6587\u4ef6\u4e2d\uff0c\u6dfb\u52a0\u4ee5\u4e0b\u4ee3\u7801\u4ee5\u83b7\u53d6\u547d\u4ee4\u884c\u53c2\u6570:<\/p>\n<p>sqlite_demo\/insertData.js\u6587\u4ef6\u5c06\u7528\u4e8e\u63d2\u5165\u6570\u636e\u5230SQLite\u6570\u636e\u5e93\u3002<\/p>\n<pre class=\"post-pre\"><code><span class=\"token keyword\">const<\/span> db <span class=\"token operator\">=<\/span> <span class=\"token function\">require<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">\".\/db\"<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span>\r\n\r\n<span class=\"token keyword\">function<\/span> <span class=\"token function\">insertRow<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/span>\r\n  <span class=\"token keyword\">const<\/span> <span class=\"token punctuation\">[<\/span>name<span class=\"token punctuation\">,<\/span> color<span class=\"token punctuation\">,<\/span> weight<span class=\"token punctuation\">]<\/span> <span class=\"token operator\">=<\/span> process<span class=\"token punctuation\">.<\/span>argv<span class=\"token punctuation\">.<\/span><span class=\"token function\">slice<\/span><span class=\"token punctuation\">(<\/span><span class=\"token number\">2<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span>\r\n<span class=\"token punctuation\">}<\/span>\r\n<\/code><\/pre>\n<p>\u5728\u7b2c\u4e00\u884c\u4e2d\uff0c\u4f60\u5bfc\u5165\u4e86\u5728\u4e0a\u4e00\u6b65\u4e2d\u5728db.js\u6587\u4ef6\u4e2d\u5bfc\u51fa\u7684\u6570\u636e\u5e93\u5bf9\u8c61\u3002\u5728\u7b2c\u4e8c\u884c\u4e2d\uff0c\u4f60\u5b9a\u4e49\u4e86\u51fd\u6570insertRow()\uff0c\u4f60\u5c06\u5f88\u5feb\u7528\u5b83\u6765\u63d2\u5165\u6570\u636e\u5230\u8868\u4e2d\u3002\u5728\u8fd9\u4e2a\u51fd\u6570\u4e2d\uff0cprocess.argv\u4ee5\u6570\u7ec4\u7684\u5f62\u5f0f\u8fd4\u56de\u6240\u6709\u7684\u547d\u4ee4\u884c\u53c2\u6570\u3002\u5728\u7d22\u5f150\u4e0a\u7684\u7b2c\u4e00\u4e2a\u5143\u7d20\u5305\u542bNode\u7684\u8def\u5f84\u3002\u5728\u7d22\u5f151\u4e0a\u7684\u7b2c\u4e8c\u4e2a\u5143\u7d20\u5b58\u50a8\u4e86JavaScript\u7a0b\u5e8f\u6587\u4ef6\u7684\u540d\u79f0\u3002\u4ece\u7d22\u5f152\u5f00\u59cb\u7684\u6240\u6709\u540e\u7eed\u5143\u7d20\u5305\u542b\u4f60\u4f20\u9012\u7ed9\u6587\u4ef6\u7684\u547d\u4ee4\u884c\u53c2\u6570\u3002\u4e3a\u4e86\u8df3\u8fc7\u524d\u4e24\u4e2a\u53c2\u6570\uff0c\u4f60\u4f7f\u7528JavaScript\u7684slice()\u65b9\u6cd5\u6765\u521b\u5efa\u6570\u7ec4\u7684\u4e00\u4e2a\u6d45\u62f7\u8d1d\uff0c\u5e76\u4ece\u7d22\u5f152\u5f00\u59cb\u8fd4\u56de\u6570\u7ec4\u7684\u672b\u5c3e\u5904\u7684\u5143\u7d20\u3002<\/p>\n<p>\u63a5\u4e0b\u6765\uff0c\u5c06\u4ee5\u4e0b\u4ee3\u7801\u6dfb\u52a0\u5230\u6570\u636e\u5e93\u4e2d\u4ee5\u63d2\u5165\u6570\u636e\uff1a<\/p>\n<p>sqlite_demo\/insertData.js\u6587\u4ef6\u6f14\u793a\u4e86\u5982\u4f55\u63d2\u5165\u6570\u636e\u5230SQLite\u6570\u636e\u5e93\u3002<\/p>\n<pre class=\"post-pre\"><code><span class=\"token keyword\">const<\/span> db <span class=\"token operator\">=<\/span> <span class=\"token function\">require<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">\".\/db\"<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span>\r\n\r\n<span class=\"token keyword\">function<\/span> <span class=\"token function\">insertRow<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/span>\r\n  <span class=\"token keyword\">const<\/span> <span class=\"token punctuation\">[<\/span>name<span class=\"token punctuation\">,<\/span> color<span class=\"token punctuation\">,<\/span> weight<span class=\"token punctuation\">]<\/span> <span class=\"token operator\">=<\/span> process<span class=\"token punctuation\">.<\/span>argv<span class=\"token punctuation\">.<\/span><span class=\"token function\">slice<\/span><span class=\"token punctuation\">(<\/span><span class=\"token number\">2<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span>\r\n  <mark>db<span class=\"token punctuation\">.<\/span><span class=\"token function\">run<\/span><span class=\"token punctuation\">(<\/span><\/mark>\r\n    <mark><span class=\"token template-string\"><span class=\"token template-punctuation string\">`<\/span><span class=\"token string\">INSERT INTO sharks (name, color, weight) VALUES (?, ?, ?)<\/span><span class=\"token template-punctuation string\">`<\/span><\/span><span class=\"token punctuation\">,<\/span><\/mark>\r\n    <mark><span class=\"token punctuation\">[<\/span>name<span class=\"token punctuation\">,<\/span> color<span class=\"token punctuation\">,<\/span> weight<span class=\"token punctuation\">]<\/span><span class=\"token punctuation\">,<\/span><\/mark>\r\n    <mark><span class=\"token keyword\">function<\/span> <span class=\"token punctuation\">(<\/span><span class=\"token parameter\">error<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/span><\/mark>\r\n      <mark><span class=\"token keyword\">if<\/span> <span class=\"token punctuation\">(<\/span>error<span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/span><\/mark>\r\n        <mark>console<span class=\"token punctuation\">.<\/span><span class=\"token function\">error<\/span><span class=\"token punctuation\">(<\/span>error<span class=\"token punctuation\">.<\/span>message<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><\/mark>\r\n      <mark><span class=\"token punctuation\">}<\/span><\/mark>\r\n      <mark>console<span class=\"token punctuation\">.<\/span><span class=\"token function\">log<\/span><span class=\"token punctuation\">(<\/span><span class=\"token template-string\"><span class=\"token template-punctuation string\">`<\/span><span class=\"token string\">Inserted a row with the ID: <\/span><span class=\"token interpolation\"><span class=\"token interpolation-punctuation punctuation\">${<\/span><span class=\"token keyword\">this<\/span><span class=\"token punctuation\">.<\/span>lastID<span class=\"token interpolation-punctuation punctuation\">}<\/span><\/span><span class=\"token template-punctuation string\">`<\/span><\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><\/mark>\r\n    <mark><span class=\"token punctuation\">}<\/span><\/mark>\r\n  <mark><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><\/mark>\r\n<span class=\"token punctuation\">}<\/span>\r\n<\/code><\/pre>\n<p>\u5728\u524d\u9762\u7684\u4ee3\u7801\u4e2d\uff0c\u60a8\u8c03\u7528\u4e86db.run()\u65b9\u6cd5\uff0c\u5b83\u63a5\u53d7\u4e09\u4e2a\u53c2\u6570\uff1aSQL\u8bed\u53e5\u3001\u4e00\u4e2a\u6570\u7ec4\u548c\u4e00\u4e2a\u56de\u8c03\u51fd\u6570\u3002\u7b2c\u4e00\u4e2a\u53c2\u6570INSERT INTO sharks&#8230;\u662f\u4e00\u4e2a\u5c06\u6570\u636e\u63d2\u5165\u6570\u636e\u5e93\u7684SQL\u8bed\u53e5\u3002\u5728INSERT\u8bed\u53e5\u4e2d\u7684VALUES\u8bed\u53e5\u4e2d\uff0c\u60a8\u4f20\u9012\u4e00\u4e2a\u7528\u9017\u53f7\u5206\u9694\u7684\u503c\u5217\u8868\uff0c\u8fd9\u4e9b\u503c\u9700\u8981\u88ab\u63d2\u5165\u3002\u8bf7\u6ce8\u610f\uff0c\u60a8\u4f20\u9012\u7684\u662f?\u5360\u4f4d\u7b26\uff0c\u800c\u4e0d\u662f\u76f4\u63a5\u4f20\u9012\u503c\u3002\u8fd9\u662f\u4e3a\u4e86\u907f\u514dSQL\u6ce8\u5165\u653b\u51fb\u3002\u5728\u6267\u884c\u8fc7\u7a0b\u4e2d\uff0cSQLite\u4f1a\u81ea\u52a8\u7528db.run()\u65b9\u6cd5\u7684\u7b2c\u4e8c\u4e2a\u53c2\u6570\u4e2d\u5305\u542b\u7684\u547d\u4ee4\u884c\u53c2\u6570\u503c\u66ff\u6362\u5360\u4f4d\u7b26\uff0c\u8be5\u53c2\u6570\u662f\u4e00\u4e2a\u5305\u542b\u503c\u7684\u6570\u7ec4\u3002<\/p>\n<p>\u6700\u540e\uff0cdb.run() \u65b9\u6cd5\u7684\u7b2c\u4e09\u4e2a\u53c2\u6570\u662f\u4e00\u4e2a\u56de\u8c03\u51fd\u6570\uff0c\u5728\u6570\u636e\u6210\u529f\u63d2\u5165\u8868\u683c\u540e\u8fd0\u884c\u3002\u5982\u679c\u51fa\u73b0\u9519\u8bef\uff0c\u9519\u8bef\u6d88\u606f\u4f1a\u88ab\u8bb0\u5f55\u5728\u63a7\u5236\u53f0\u4e2d\u3002\u5982\u679c\u63d2\u5165\u6210\u529f\uff0c\u4f60\u5c06\u4f7f\u7528\u8fd4\u56de\u7684 this.lastID \u8bb0\u5f55\u65b0\u63d2\u5165\u884c\u7684 ID\uff0c\u540c\u65f6\u6253\u5370\u51fa\u6210\u529f\u7684\u4fe1\u606f\u3002<\/p>\n<p>\u73b0\u5728\uff0c\u5c06\u9ad8\u4eae\u7684\u884c\u6dfb\u52a0\u5230\u8c03\u7528insertRow()\u51fd\u6570\u7684\u4f4d\u7f6e\u3002<\/p>\n<div>sqlite_demo\/insertData.js\u7684\u4e2d\u6587\u91ca\u4e49<\/div>\n<pre class=\"post-pre\"><code><span class=\"token keyword\">const<\/span> db <span class=\"token operator\">=<\/span> <span class=\"token function\">require<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">\".\/db\"<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span>\r\n\r\n<span class=\"token keyword\">function<\/span> <span class=\"token function\">insertRow<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/span>\r\n  <span class=\"token keyword\">const<\/span> <span class=\"token punctuation\">[<\/span>name<span class=\"token punctuation\">,<\/span> color<span class=\"token punctuation\">,<\/span> weight<span class=\"token punctuation\">]<\/span> <span class=\"token operator\">=<\/span> process<span class=\"token punctuation\">.<\/span>argv<span class=\"token punctuation\">.<\/span><span class=\"token function\">slice<\/span><span class=\"token punctuation\">(<\/span><span class=\"token number\">2<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span>\r\n  db<span class=\"token punctuation\">.<\/span><span class=\"token function\">run<\/span><span class=\"token punctuation\">(<\/span>\r\n    <span class=\"token template-string\"><span class=\"token template-punctuation string\">`<\/span><span class=\"token string\">INSERT INTO sharks (name, color, weight) VALUES (?, ?, ?)<\/span><span class=\"token template-punctuation string\">`<\/span><\/span><span class=\"token punctuation\">,<\/span>\r\n    <span class=\"token punctuation\">[<\/span>name<span class=\"token punctuation\">,<\/span> color<span class=\"token punctuation\">,<\/span> weight<span class=\"token punctuation\">]<\/span><span class=\"token punctuation\">,<\/span>\r\n    <span class=\"token keyword\">function<\/span> <span class=\"token punctuation\">(<\/span><span class=\"token parameter\">error<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/span>\r\n      <span class=\"token keyword\">if<\/span> <span class=\"token punctuation\">(<\/span>error<span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/span>\r\n        console<span class=\"token punctuation\">.<\/span><span class=\"token function\">error<\/span><span class=\"token punctuation\">(<\/span>error<span class=\"token punctuation\">.<\/span>message<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span>\r\n      <span class=\"token punctuation\">}<\/span>\r\n      console<span class=\"token punctuation\">.<\/span><span class=\"token function\">log<\/span><span class=\"token punctuation\">(<\/span><span class=\"token template-string\"><span class=\"token template-punctuation string\">`<\/span><span class=\"token string\">\u63d2\u5165\u4e86\u4e00\u884c\u6570\u636e\uff0cID\u4e3a: <\/span><span class=\"token interpolation\"><span class=\"token interpolation-punctuation punctuation\">${<\/span><span class=\"token keyword\">this<\/span><span class=\"token punctuation\">.<\/span>lastID<span class=\"token interpolation-punctuation punctuation\">}<\/span><\/span><span class=\"token template-punctuation string\">`<\/span><\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span>\r\n    <span class=\"token punctuation\">}<\/span>\r\n  <span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span>\r\n<span class=\"token punctuation\">}<\/span>\r\n\r\n<mark><span class=\"token function\">insertRow<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><\/mark>\r\n<\/code><\/pre>\n<p>\u4fdd\u5b58\u5e76\u5173\u95ed\u60a8\u7684\u6587\u4ef6\uff0c\u7136\u540e\u4f7f\u7528\u9ca8\u9c7c\u540d\u79f0\u3001\u989c\u8272\u548c\u91cd\u91cf\u53c2\u6570\u8fd0\u884c\u6587\u4ef6\u3002<\/p>\n<pre class=\"post-pre\"><code><\/code><\/pre>\n<ol>\n<li data-prefix=\"$\"><span class=\"token function\">node<\/span> insertData.js sammy blue <span class=\"token number\">1900<\/span><\/li>\n<\/ol>\n<pre class=\"post-pre\"><code><\/code><\/pre>\n<p>&nbsp;<\/p>\n<pre class=\"post-pre\"><code><\/code><\/pre>\n<p>\u8f93\u51fa\u8868\u660e\u5df2\u5c06\u884c\u63d2\u5165\u5230\u5177\u6709\u4e3b\u8981ID 1\u7684\u8868\u4e2d\u3002<\/p>\n<pre class=\"post-pre\"><code><\/code><\/pre>\n<div class=\"secondary-code-label\" title=\"\u8f93\u51fa\">\u8f93\u51fa<\/p>\n<pre class=\"post-pre\"><code><\/code><\/pre>\n<p>\u63d2\u5165\u4e86\u4e00\u884c\u6570\u636e\uff0cID\u4e3a: 1<\/p>\n<pre class=\"post-pre\"><code><\/code><\/pre>\n<p>\u7528\u4e0d\u540c\u7684\u53c2\u6570\u518d\u6b21\u8fd0\u884c\u8be5\u547d\u4ee4\u3002<\/p>\n<pre class=\"post-pre\"><code><\/code><\/pre>\n<ol>\n<li data-prefix=\"$\"><span class=\"token function\">node<\/span> insertData.js max white <span class=\"token number\">2100<\/span><\/li>\n<\/ol>\n<pre class=\"post-pre\"><code><\/code><\/pre>\n<p>&nbsp;<\/p>\n<pre class=\"post-pre\"><code><\/code><\/pre>\n<pre class=\"post-pre\"><code><\/code><\/pre>\n<div class=\"secondary-code-label\" title=\"\u8f93\u51fa\">\u8f93\u51fa<\/p>\n<pre class=\"post-pre\"><code><\/code><\/pre>\n<p>\u63d2\u5165\u4e86\u4e00\u884c\u6570\u636e\uff0cID\u4e3a: 2<\/p>\n<pre class=\"post-pre\"><code><\/code><\/pre>\n<p>\u5f53\u60a8\u8fd0\u884c\u524d\u9762\u7684\u547d\u4ee4\u65f6\uff0c\u5c06\u5728sharks\u8868\u4e2d\u521b\u5efa\u4e24\u884c\u8bb0\u5f55\u3002<\/p>\n<p>\u73b0\u5728\uff0c\u4f60\u5df2\u7ecf\u53ef\u4ee5\u5c06\u6570\u636e\u63d2\u5165\u5230SQLite\u6570\u636e\u5e93\u4e2d\u4e86\uff0c\u63a5\u4e0b\u6765\u4f60\u5c06\u4ece\u6570\u636e\u5e93\u4e2d\u68c0\u7d22\u6570\u636e\u3002<\/p>\n<h2>\u7b2c\u56db\u6b65 &#8211; \u4eceSQLite\u6570\u636e\u5e93\u4e2d\u68c0\u7d22\u6570\u636e<\/h2>\n<p>\u5728\u8fd9\u4e00\u6b65\u4e2d\uff0c\u60a8\u5c06\u4f7f\u7528node-sqlite3\u6a21\u5757\u4eceSQLite\u6570\u636e\u5e93\u4e2d\u68c0\u7d22\u5b58\u50a8\u5728sharks\u8868\u4e2d\u7684\u6240\u6709\u6570\u636e\uff0c\u5e76\u5c06\u5b83\u4eec\u8bb0\u5f55\u5728\u63a7\u5236\u53f0\u4e2d\u3002<\/p>\n<p>\u9996\u5148\uff0c\u6253\u5f00listData.js\u6587\u4ef6\u3002<\/p>\n<pre class=\"post-pre\"><code><\/code><\/pre>\n<ol>\n<li data-prefix=\"$\"><span class=\"token function\">nano<\/span> listData.js<\/li>\n<\/ol>\n<pre class=\"post-pre\"><code><\/code><\/pre>\n<p>&nbsp;<\/p>\n<pre class=\"post-pre\"><code><\/code><\/pre>\n<p>\u5728\u4f60\u7684<code>sqlite_demo\/listData.js<\/code>\u6587\u4ef6\u4e2d\uff0c\u6dfb\u52a0\u4ee5\u4e0b\u4ee3\u7801\u4ee5\u68c0\u7d22\u6240\u6709\u884c\uff1a<\/p>\n<p>\u8fd9\u662f\u6587\u7ae0\u300a\u5982\u4f55\u5728Ubuntu 22.04\u4e0a\u4f7f\u7528Node.js\u4f7f\u7528SQLite\u300b\u7684\u7b2c12\u90e8\u5206\uff08\u517115\u90e8\u5206\uff09\u3002<\/p>\n<pre class=\"post-pre\"><code><span class=\"token keyword\">const<\/span> db <span class=\"token operator\">=<\/span> <span class=\"token function\">require<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">\".\/db\"<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span>\r\n\r\n<span class=\"token keyword\">function<\/span> <span class=\"token function\">selectRows<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/span>\r\n  db<span class=\"token punctuation\">.<\/span><span class=\"token function\">each<\/span><span class=\"token punctuation\">(<\/span><span class=\"token template-string\"><span class=\"token template-punctuation string\">`<\/span><span class=\"token string\">SELECT * FROM sharks<\/span><span class=\"token template-punctuation string\">`<\/span><\/span><span class=\"token punctuation\">,<\/span> <span class=\"token punctuation\">(<\/span><span class=\"token parameter\">error<span class=\"token punctuation\">,<\/span> row<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token operator\">=&gt;<\/span> <span class=\"token punctuation\">{<\/span>\r\n    <span class=\"token keyword\">if<\/span> <span class=\"token punctuation\">(<\/span>error<span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/span>\r\n      <span class=\"token keyword\">throw<\/span> <span class=\"token keyword\">new<\/span> <span class=\"token class-name\">Error<\/span><span class=\"token punctuation\">(<\/span>error<span class=\"token punctuation\">.<\/span>message<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span>\r\n    <span class=\"token punctuation\">}<\/span>\r\n    console<span class=\"token punctuation\">.<\/span><span class=\"token function\">log<\/span><span class=\"token punctuation\">(<\/span>row<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span>\r\n  <span class=\"token punctuation\">}<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span>\r\n<span class=\"token punctuation\">}<\/span>\r\n<\/code><\/pre>\n<p>\u9996\u5148\uff0c\u4ecedb.js\u6587\u4ef6\u4e2d\u5bfc\u5165\u6570\u636e\u5e93\u5bf9\u8c61\u3002\u5176\u6b21\uff0c\u5b9a\u4e49selectRows()\u51fd\u6570\uff0c\u8be5\u51fd\u6570\u4eceSQLite\u6570\u636e\u5e93\u4e2d\u68c0\u7d22\u6240\u6709\u884c\u3002\u5728\u51fd\u6570\u5185\u90e8\uff0c\u4f7f\u7528\u6570\u636e\u5e93\u5bf9\u8c61db\u7684each()\u65b9\u6cd5\u9010\u884c\u68c0\u7d22\u6570\u636e\u5e93\u4e2d\u7684\u884c\u3002each()\u65b9\u6cd5\u63a5\u53d7\u4e24\u4e2a\u53c2\u6570\uff1aSQL\u8bed\u53e5\u548c\u56de\u8c03\u51fd\u6570\u3002<\/p>\n<p>\u7b2c\u4e00\u4e2a\u53c2\u6570SELECT\u8fd4\u56desharks\u8868\u4e2d\u7684\u6240\u6709\u884c\u3002\u7b2c\u4e8c\u4e2a\u53c2\u6570\u662f\u4e00\u4e2a\u56de\u8c03\u51fd\u6570\uff0c\u5b83\u5728\u4ece\u6570\u636e\u5e93\u68c0\u7d22\u6bcf\u4e00\u884c\u65f6\u8fd0\u884c\u3002\u5728\u56de\u8c03\u51fd\u6570\u4e2d\uff0c\u60a8\u68c0\u67e5\u662f\u5426\u6709\u9519\u8bef\u3002\u5982\u679c\u6709\u9519\u8bef\uff0c\u60a8\u4f7f\u7528throw\u8bed\u53e5\u521b\u5efa\u4e00\u4e2a\u81ea\u5b9a\u4e49\u9519\u8bef\u3002\u5982\u679c\u5728\u68c0\u7d22\u8fc7\u7a0b\u4e2d\u6ca1\u6709\u53d1\u751f\u9519\u8bef\uff0c\u5219\u5c06\u6570\u636e\u8bb0\u5f55\u5728\u63a7\u5236\u53f0\u4e2d\u3002<\/p>\n<p>\u73b0\u5728\uff0c\u5c06\u9ad8\u4eae\u663e\u793a\u7684\u4ee3\u7801\u6dfb\u52a0\u5230\u8c03\u7528selectRows()\u51fd\u6570\u7684\u4f4d\u7f6e\u3002<\/p>\n<div>sqlite_demo\/listData.js \u7684\u4e2d\u6587\u7ffb\u8bd1\u4e3a\uff1a&#8221;SQLite\u6f14\u793a\/\u5217\u8868\u6570\u636e.js&#8221;\u3002<\/div>\n<pre class=\"post-pre\"><code><span class=\"token keyword\">const<\/span> db <span class=\"token operator\">=<\/span> <span class=\"token function\">require<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">\".\/db\"<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span>\r\n\r\n<span class=\"token keyword\">function<\/span> <span class=\"token function\">selectRows<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/span>\r\n  db<span class=\"token punctuation\">.<\/span><span class=\"token function\">each<\/span><span class=\"token punctuation\">(<\/span><span class=\"token template-string\"><span class=\"token template-punctuation string\">`<\/span><span class=\"token string\">SELECT * FROM sharks<\/span><span class=\"token template-punctuation string\">`<\/span><\/span><span class=\"token punctuation\">,<\/span> <span class=\"token punctuation\">(<\/span><span class=\"token parameter\">error<span class=\"token punctuation\">,<\/span> row<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token operator\">=&gt;<\/span> <span class=\"token punctuation\">{<\/span>\r\n    <span class=\"token keyword\">if<\/span> <span class=\"token punctuation\">(<\/span>error<span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/span>\r\n      <span class=\"token keyword\">throw<\/span> <span class=\"token keyword\">new<\/span> <span class=\"token class-name\">Error<\/span><span class=\"token punctuation\">(<\/span>error<span class=\"token punctuation\">.<\/span>message<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span>\r\n    <span class=\"token punctuation\">}<\/span>\r\n    console<span class=\"token punctuation\">.<\/span><span class=\"token function\">log<\/span><span class=\"token punctuation\">(<\/span>row<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span>\r\n  <span class=\"token punctuation\">}<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span>\r\n<span class=\"token punctuation\">}<\/span>\r\n\r\n<mark><span class=\"token function\">selectRows<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><\/mark>\r\n<\/code><\/pre>\n<p>\u4fdd\u5b58\u5e76\u9000\u51fa\u4f60\u7684\u6587\u4ef6\uff0c\u7136\u540e\u8fd0\u884c\u6587\u4ef6\u3002<\/p>\n<pre class=\"post-pre\"><code><\/code><\/pre>\n<ol>\n<li data-prefix=\"$\"><span class=\"token function\">node<\/span> listData.js<\/li>\n<\/ol>\n<pre class=\"post-pre\"><code><\/code><\/pre>\n<p>&nbsp;<\/p>\n<pre class=\"post-pre\"><code><\/code><\/pre>\n<p>\u6267\u884c\u8be5\u547d\u4ee4\u540e\uff0c\u60a8\u4f1a\u6ce8\u610f\u5230\u4ee5\u4e0b\u663e\u793a\u7684\u8f93\u51fa\u3002<\/p>\n<pre class=\"post-pre\"><code><\/code><\/pre>\n<div class=\"secondary-code-label\" title=\"\u8f93\u51fa\">\u8f93\u51fa<\/div>\n<pre class=\"post-pre\"><code><\/code><\/pre>\n<p>{ ID: 1, name: &#8216;sammy&#8217;, color: &#8216;blue&#8217;, weight: 1900 } { ID: 2, name: &#8216;max&#8217;, color: &#8216;white&#8217;, weight: 2100 }<\/p>\n<pre class=\"post-pre\"><code><\/code><\/pre>\n<p>\u5728\u524d\u4e00\u6b65\u4e2d\uff0c\u8f93\u51fa\u663e\u793a\u4e86\u60a8\u5728\u9ca8\u9c7c\u8868\u4e2d\u63d2\u5165\u7684\u6240\u6709\u884c\u3002node-sqlite3\u6a21\u5757\u5c06\u6bcf\u4e2aSQL\u7ed3\u679c\u8f6c\u6362\u4e3aJavaScript\u5bf9\u8c61\u3002<\/p>\n<p>\u73b0\u5728\u4f60\u5df2\u7ecf\u53ef\u4ee5\u4eceSQLite\u6570\u636e\u5e93\u4e2d\u68c0\u7d22\u6570\u636e\uff0c\u4f60\u5c06\u66f4\u65b0SQLite\u6570\u636e\u5e93\u4e2d\u7684\u6570\u636e\u3002<\/p>\n<h2>\u7b2c\u4e94\u6b65 \u2014\u2014 \u5728SQLite\u6570\u636e\u5e93\u4e2d\u4fee\u6539\u6570\u636e<\/h2>\n<p>\u5728\u8fd9\u4e2a\u6b65\u9aa4\u4e2d\uff0c\u60a8\u5c06\u4f7f\u7528node-sqlite3\u6a21\u5757\u66f4\u65b0SQLite\u6570\u636e\u5e93\u4e2d\u7684\u4e00\u884c\u3002\u4e3a\u4e86\u505a\u5230\u8fd9\u4e00\u70b9\uff0c\u60a8\u5c06\u5411\u7a0b\u5e8f\u4f20\u9012\u4e00\u4e2a\u5305\u542b\u60a8\u60f3\u8981\u4fee\u6539\u7684\u884c\u7684\u4e3b\u8981ID\u4ee5\u53ca\u60a8\u60f3\u8981\u5c06\u8be5\u884c\u66f4\u65b0\u4e3a\u7684\u503c\u7684\u547d\u4ee4\u884c\u53c2\u6570\u3002<\/p>\n<p>\u5728\u60a8\u7684\u6587\u672c\u7f16\u8f91\u5668\u4e2d\u521b\u5efa\u5e76\u6253\u5f00updateData.js\u6587\u4ef6\u3002<\/p>\n<pre class=\"post-pre\"><code><\/code><\/pre>\n<ol>\n<li data-prefix=\"$\"><span class=\"token function\">nano<\/span> updateData.js<\/li>\n<\/ol>\n<pre class=\"post-pre\"><code><\/code><\/pre>\n<p>&nbsp;<\/p>\n<pre class=\"post-pre\"><code><\/code><\/pre>\n<p>\u5728\u60a8\u7684updateData.js\u6587\u4ef6\u4e2d\uff0c\u6dfb\u52a0\u4ee5\u4e0b\u4ee3\u7801\u6765\u66f4\u65b0\u4e00\u6761\u8bb0\u5f55\uff1a<\/p>\n<p>\u6587\u4ef6\u8def\u5f84\uff1asqlite_demo\/updateData.js<\/p>\n<pre class=\"post-pre\"><code><span class=\"token keyword\">const<\/span> db <span class=\"token operator\">=<\/span> <span class=\"token function\">require<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">\".\/db\"<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span>\r\n\r\n<span class=\"token keyword\">function<\/span> <span class=\"token function\">updateRow<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/span>\r\n  <span class=\"token keyword\">const<\/span> <span class=\"token punctuation\">[<\/span>id<span class=\"token punctuation\">,<\/span> name<span class=\"token punctuation\">]<\/span> <span class=\"token operator\">=<\/span> process<span class=\"token punctuation\">.<\/span>argv<span class=\"token punctuation\">.<\/span><span class=\"token function\">slice<\/span><span class=\"token punctuation\">(<\/span><span class=\"token number\">2<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span>\r\n  db<span class=\"token punctuation\">.<\/span><span class=\"token function\">run<\/span><span class=\"token punctuation\">(<\/span>\r\n    <span class=\"token template-string\"><span class=\"token template-punctuation string\">`<\/span><span class=\"token string\">UPDATE sharks SET name = ? WHERE id = ?<\/span><span class=\"token template-punctuation string\">`<\/span><\/span><span class=\"token punctuation\">,<\/span>\r\n    <span class=\"token punctuation\">[<\/span>name<span class=\"token punctuation\">,<\/span> id<span class=\"token punctuation\">]<\/span><span class=\"token punctuation\">,<\/span>\r\n    <span class=\"token keyword\">function<\/span> <span class=\"token punctuation\">(<\/span><span class=\"token parameter\">error<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/span>\r\n      <span class=\"token keyword\">if<\/span> <span class=\"token punctuation\">(<\/span>error<span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/span>\r\n        console<span class=\"token punctuation\">.<\/span><span class=\"token function\">error<\/span><span class=\"token punctuation\">(<\/span>error<span class=\"token punctuation\">.<\/span>message<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span>\r\n      <span class=\"token punctuation\">}<\/span>\r\n      console<span class=\"token punctuation\">.<\/span><span class=\"token function\">log<\/span><span class=\"token punctuation\">(<\/span><span class=\"token template-string\"><span class=\"token template-punctuation string\">`<\/span><span class=\"token string\">\u884c <\/span><span class=\"token interpolation\"><span class=\"token interpolation-punctuation punctuation\">${<\/span>id<span class=\"token interpolation-punctuation punctuation\">}<\/span><\/span><span class=\"token string\"> \u5df2\u88ab\u66f4\u65b0<\/span><span class=\"token template-punctuation string\">`<\/span><\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span>\r\n    <span class=\"token punctuation\">}<\/span>\r\n  <span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span>\r\n<span class=\"token punctuation\">}<\/span>\r\n\r\n<span class=\"token function\">updateRow<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span>\r\n<\/code><\/pre>\n<p>\u9996\u5148\uff0c\u4f60\u4ecedb.js\u6587\u4ef6\u4e2d\u5bfc\u5165\u6570\u636e\u5e93\u5bf9\u8c61\u3002\u5176\u6b21\uff0c\u4f60\u5b9a\u4e49\u4e86\u4e00\u4e2a\u540d\u4e3aupdateRow\u7684\u51fd\u6570\uff0c\u8be5\u51fd\u6570\u7528\u4e8e\u66f4\u65b0\u6570\u636e\u5e93\u4e2d\u7684\u67d0\u4e00\u884c\u3002\u5728\u51fd\u6570\u5185\u90e8\uff0c\u4f60\u5c06\u547d\u4ee4\u884c\u53c2\u6570\u89e3\u5305\u5230id\u548cname\u53d8\u91cf\u4e2d\u3002id\u53d8\u91cf\u5305\u542b\u4f60\u60f3\u8981\u66f4\u65b0\u7684\u884c\u7684\u4e3b\u952eID\uff0c\u800cname\u53d8\u91cf\u5219\u5305\u542b\u4f60\u60f3\u8981\u5c06name\u5b57\u6bb5\u66f4\u65b0\u4e3a\u7684\u503c\u3002<\/p>\n<p>\u63a5\u4e0b\u6765\uff0c\u60a8\u4f7f\u7528\u4ee5\u4e0b\u53c2\u6570\u8c03\u7528db.run()\u51fd\u6570\uff1a\u4e00\u4e2aSQL\u8bed\u53e5\u548c\u4e00\u4e2a\u56de\u8c03\u51fd\u6570\u3002UPDATE SQL\u8bed\u53e5\u5c06\u540d\u79f0\u5217\u4ece\u5f53\u524d\u503c\u66f4\u6539\u4e3aname\u53d8\u91cf\u4e2d\u4f20\u9012\u7684\u503c\u3002WHERE\u5b50\u53e5\u786e\u4fdd\u53ea\u6709ID\u53d8\u91cf\u4e2d\u7684\u884c\u88ab\u66f4\u65b0\u3002db.run()\u65b9\u6cd5\u63a5\u53d7\u7b2c\u4e8c\u4e2a\u53c2\u6570\uff0c\u8fd9\u662f\u4e00\u4e2a\u5728\u503c\u66f4\u65b0\u540e\u8fd0\u884c\u7684\u56de\u8c03\u51fd\u6570\u3002<\/p>\n<p>\u6700\u540e\uff0c\u4f60\u8c03\u7528 updateRow() \u51fd\u6570\u3002<\/p>\n<p>\u5f53\u60a8\u5b8c\u6210\u4e86\u66f4\u6539\u540e\uff0c\u8bf7\u4fdd\u5b58\u5e76\u5173\u95ed\u6587\u4ef6\u3002<\/p>\n<p>\u7528\u8981\u66f4\u6539\u7684\u884c\u7684id\u548c\u65b0\u540d\u79f0\u8fd0\u884cupdateData.js\u6587\u4ef6\u3002<\/p>\n<pre class=\"post-pre\"><code><\/code><\/pre>\n<ol>\n<li data-prefix=\"$\"><span class=\"token function\">node<\/span> updateData.js <span class=\"token number\">2<\/span> sonny<\/li>\n<\/ol>\n<pre class=\"post-pre\"><code><\/code><\/pre>\n<p>&nbsp;<\/p>\n<pre class=\"post-pre\"><code><\/code><\/pre>\n<pre class=\"post-pre\"><code><\/code><\/pre>\n<div class=\"secondary-code-label\" title=\"Output\">\u8f93\u51fa<\/div>\n<pre class=\"post-pre\"><code><\/code><\/pre>\n<p>\u7b2c2\u884c\u5df2\u66f4\u65b0<\/p>\n<pre class=\"post-pre\"><code><\/code><\/pre>\n<p>\u786e\u8ba4\u59d3\u540d\u5df2\u7ecf\u66f4\u6539<\/p>\n<pre class=\"post-pre\"><code><\/code><\/pre>\n<ol>\n<li data-prefix=\"$\"><span class=\"token function\">node<\/span> listData.js<\/li>\n<\/ol>\n<pre class=\"post-pre\"><code><\/code><\/pre>\n<p>&nbsp;<\/p>\n<pre class=\"post-pre\"><code><\/code><\/pre>\n<p>\u5f53\u60a8\u8fd0\u884c\u8be5\u547d\u4ee4\u65f6\uff0c\u8f93\u51fa\u5c06\u7c7b\u4f3c\u4e8e\u4ee5\u4e0b\u5185\u5bb9\uff1a<\/p>\n<pre class=\"post-pre\"><code><\/code><\/pre>\n<div class=\"secondary-code-label\" title=\"\u8f93\u51fa\">\u8f93\u51fa<\/p>\n<pre class=\"post-pre\"><code><\/code><\/pre>\n<p>{ ID: 1, name: &#8216;sammy&#8217;, color: &#8216;blue&#8217;, weight: 1900 } { ID: 2, name: &#8216;<mark>sonny<\/mark>&#8216;, color: &#8216;white&#8217;, weight: 2100 }<\/p>\n<pre class=\"post-pre\"><code><\/code><\/pre>\n<p>\u8f93\u51fa\u8868\u660e\uff0c\u5177\u6709ID 2\u7684\u884c\u73b0\u5728\u5c06&#8221;Sonny&#8221;\u4f5c\u4e3a\u5176\u59d3\u540d\u5b57\u6bb5\u7684\u503c\u3002<\/p>\n<p>\u901a\u8fc7\u4ee5\u4e0a\u64cd\u4f5c\uff0c\u60a8\u5df2\u7ecf\u53ef\u4ee5\u5728\u6570\u636e\u5e93\u4e2d\u66f4\u65b0\u4e00\u884c\u6570\u636e\u3002\u63a5\u4e0b\u6765\uff0c\u60a8\u5c06\u4eceSQLite\u6570\u636e\u5e93\u4e2d\u5220\u9664\u6570\u636e\u3002<\/p>\n<h2>\u6b65\u9aa46 \u2014 \u5220\u9664 SQLite \u6570\u636e\u5e93\u4e2d\u7684\u6570\u636e<\/h2>\n<p>\u5728\u672c\u8282\u4e2d\uff0c\u60a8\u5c06\u4f7f\u7528node-sqlite3\u4eceSQLite\u6570\u636e\u5e93\u4e2d\u9009\u62e9\u5e76\u5220\u9664\u8868\u4e2d\u7684\u4e00\u884c\u6570\u636e\u3002<\/p>\n<p>\u5728\u6587\u672c\u7f16\u8f91\u5668\u4e2d\u521b\u5efa\u5e76\u6253\u5f00 deleteData.js \u6587\u4ef6\u3002<\/p>\n<pre class=\"post-pre\"><code><\/code><\/pre>\n<ol>\n<li data-prefix=\"$\"><span class=\"token function\">nano<\/span> deleteData.js<\/li>\n<\/ol>\n<pre class=\"post-pre\"><code><\/code><\/pre>\n<p>&nbsp;<\/p>\n<pre class=\"post-pre\"><code><\/code><\/pre>\n<p>\u5728\u60a8\u7684deleteData.js\u6587\u4ef6\u4e2d\uff0c\u6dfb\u52a0\u4ee5\u4e0b\u4ee3\u7801\u4ee5\u5220\u9664\u6570\u636e\u5e93\u4e2d\u7684\u4e00\u884c\u6570\u636e\uff1a<\/p>\n<div>\u5220\u9664\u6570\u636e\u6f14\u793a\u7684JavaScript\u6587\u4ef6\uff1asqlite_demo\/deleteData.js\u3002<\/div>\n<h2>\u5728Node.js\u4e2d\u5220\u9664SQLite\u6570\u636e<\/h2>\n<p>\u8fd9\u662f\u6587\u7ae0\u300a\u5982\u4f55\u5728Ubuntu 22.04\u4e0a\u4f7f\u7528Node.js\u4f7f\u7528SQLite\u300b\u7684\u7b2c15\u90e8\u5206\uff08\u517115\u90e8\u5206\uff09\u3002<\/p>\n<pre class=\"post-pre\"><code><span class=\"token keyword\">const<\/span> db <span class=\"token operator\">=<\/span> <span class=\"token function\">require<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">\".\/db\"<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span>\r\n\r\n<span class=\"token keyword\">async<\/span> <span class=\"token keyword\">function<\/span> <span class=\"token function\">deleteRow<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/span>\r\n  <span class=\"token keyword\">const<\/span> <span class=\"token punctuation\">[<\/span>id<span class=\"token punctuation\">]<\/span> <span class=\"token operator\">=<\/span> process<span class=\"token punctuation\">.<\/span>argv<span class=\"token punctuation\">.<\/span><span class=\"token function\">slice<\/span><span class=\"token punctuation\">(<\/span><span class=\"token number\">2<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span>\r\n  db<span class=\"token punctuation\">.<\/span><span class=\"token function\">run<\/span><span class=\"token punctuation\">(<\/span><span class=\"token template-string\"><span class=\"token template-punctuation string\">`<\/span><span class=\"token string\">DELETE FROM sharks WHERE id = ?<\/span><span class=\"token template-punctuation string\">`<\/span><\/span><span class=\"token punctuation\">,<\/span> <span class=\"token punctuation\">[<\/span>id<span class=\"token punctuation\">]<\/span><span class=\"token punctuation\">,<\/span> <span class=\"token keyword\">function<\/span> <span class=\"token punctuation\">(<\/span><span class=\"token parameter\">error<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/span>\r\n    <span class=\"token keyword\">if<\/span> <span class=\"token punctuation\">(<\/span>error<span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/span>\r\n      <span class=\"token keyword\">return<\/span> console<span class=\"token punctuation\">.<\/span><span class=\"token function\">error<\/span><span class=\"token punctuation\">(<\/span>error<span class=\"token punctuation\">.<\/span>message<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span>\r\n    <span class=\"token punctuation\">}<\/span>\r\n    console<span class=\"token punctuation\">.<\/span><span class=\"token function\">log<\/span><span class=\"token punctuation\">(<\/span><span class=\"token template-string\"><span class=\"token template-punctuation string\">`<\/span><span class=\"token string\">ID\u4e3a <\/span><span class=\"token interpolation\"><span class=\"token interpolation-punctuation punctuation\">${<\/span>id<span class=\"token interpolation-punctuation punctuation\">}<\/span><\/span><span class=\"token string\"> \u7684\u884c\u5df2\u88ab\u5220\u9664<\/span><span class=\"token template-punctuation string\">`<\/span><\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span>\r\n  <span class=\"token punctuation\">}<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span>\r\n<span class=\"token punctuation\">}<\/span>\r\n\r\n<span class=\"token function\">deleteRow<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span>\r\n<\/code><\/pre>\n<p>\u9996\u5148\uff0c\u5728db.js\u6587\u4ef6\u4e2d\u5bfc\u5165\u6570\u636e\u5e93\u5bf9\u8c61\u3002\u5176\u6b21\uff0c\u4f60\u5b9a\u4e49\u4e86\u4e00\u4e2adeleteRow()\u51fd\u6570\uff0c\u8be5\u51fd\u6570\u7528\u4e8e\u5220\u9664\u8868sharks\u4e2d\u7684\u4e00\u884c\u3002\u5728\u51fd\u6570\u5185\u90e8\uff0c\u4f60\u89e3\u6784\u4e3b\u952eID\u5e76\u5c06\u5176\u5b58\u50a8\u5728id\u53d8\u91cf\u4e2d\u3002\u63a5\u4e0b\u6765\uff0c\u4f60\u8c03\u7528db.run()\u65b9\u6cd5\uff0c\u8be5\u65b9\u6cd5\u9700\u8981\u4e24\u4e2a\u53c2\u6570\u3002\u7b2c\u4e00\u4e2a\u53c2\u6570\u662fSQL\u8bed\u53e5<code>DELETE from sharks...<\/code>\uff0c\u5b83\u7528\u4e8e\u5220\u9664\u8868sharks\u4e2d\u7684\u4e00\u884c\u3002WHERE\u5b50\u53e5\u786e\u4fdd\u53ea\u5220\u9664id\u53d8\u91cf\u4e2d\u5305\u542b\u7684\u4e3b\u952eID\u7684\u884c\u3002\u7b2c\u4e8c\u4e2a\u53c2\u6570\u662f\u4e00\u4e2a\u56de\u8c03\u51fd\u6570\uff0c\u5b83\u4f1a\u5728\u884c\u88ab\u5220\u9664\u540e\u8fd0\u884c\u3002\u5982\u679c\u5220\u9664\u6210\u529f\uff0c\u8be5\u51fd\u6570\u4f1a\u8bb0\u5f55\u4e00\u6761\u6210\u529f\u6d88\u606f\uff1b\u5426\u5219\uff0c\u5b83\u4f1a\u5c06\u9519\u8bef\u8bb0\u5f55\u5728\u63a7\u5236\u53f0\u4e2d\u3002<\/p>\n<p>\u6700\u540e\uff0c\u4f60\u8c03\u7528deleteRow()\u51fd\u6570\u3002<\/p>\n<p>\u4fdd\u5b58\u5e76\u5173\u95ed\u60a8\u7684\u6587\u4ef6\uff0c\u7136\u540e\u8fd0\u884c\u4ee5\u4e0b\u547d\u4ee4\uff1a<\/p>\n<ol>\n<li data-prefix=\"$\"><span class=\"token function\">node<\/span> deleteData.js <span class=\"token number\">2<\/span><\/li>\n<\/ol>\n<div class=\"secondary-code-label\" title=\"\u8f93\u51fa\">\u8f93\u51fa<\/p>\n<pre class=\"post-pre\">ID\u4e3a 2 \u7684\u884c\u5df2\u88ab\u5220\u9664<\/pre>\n<\/div>\n<p>\u63a5\u4e0b\u6765\uff0c\u8bf7\u786e\u8ba4\u8be5\u884c\u5df2\u88ab\u5220\u9664\uff1a<\/p>\n<ol>\n<li data-prefix=\"$\"><span class=\"token function\">node<\/span> listData.js<\/li>\n<\/ol>\n<p>\u5f53\u4f60\u8fd0\u884c\u8be5\u547d\u4ee4\u65f6\uff0c\u4f60\u7684\u8f93\u51fa\u5c06\u4ee5\u7c7b\u4f3c\u4ee5\u4e0b\u7684\u65b9\u5f0f\u663e\u793a\uff1a<\/p>\n<div class=\"secondary-code-label\" title=\"\u8f93\u51fa\">\u8f93\u51fa<\/p>\n<pre class=\"post-pre\">{ ID: 1, name: 'sammy', color: 'blue', weight: 1900 }<\/pre>\n<\/div>\n<p>ID\u4e3a2\u7684\u884c\u5df2\u7ecf\u4e0d\u5728\u7ed3\u679c\u4e2d\u4e86\u3002\u8fd9\u8bc1\u5b9e\u4e86\u8be5\u884c\u5df2\u88ab\u5220\u9664\u3002<\/p>\n<p>\u6709\u4e86\u8fd9\u4e2a\uff0c\u4f60\u73b0\u5728\u53ef\u4ee5\u4f7f\u7528node-sqlite3\u6a21\u5757\u5728SQLite\u6570\u636e\u5e93\u4e2d\u5220\u9664\u884c\u4e86\u3002<\/p>\n<h2>\u7ed3\u8bba<\/h2>\n<p>\u5728\u672c\u6587\u4e2d\uff0c\u60a8\u521b\u5efa\u4e86\u4e00\u4e2a\u4f7f\u7528node-sqlite3\u6a21\u5757\u8fde\u63a5\u5230SQLite\u6570\u636e\u5e93\u5e76\u521b\u5efa\u8868\u7684Node.js\u5e94\u7528\u7a0b\u5e8f\u3002\u63a5\u4e0b\u6765\uff0c\u60a8\u4fee\u6539\u4e86\u8be5\u5e94\u7528\u7a0b\u5e8f\u4ee5\u5728\u6570\u636e\u5e93\u4e2d\u63d2\u5165\u3001\u68c0\u7d22\u548c\u66f4\u65b0\u6570\u636e\u3002\u6700\u540e\uff0c\u60a8\u4fee\u6539\u4e86\u8be5\u5e94\u7528\u7a0b\u5e8f\u4ee5\u5220\u9664\u6570\u636e\u5e93\u4e2d\u7684\u6570\u636e\u3002<\/p>\n<p>\u60f3\u8981\u6df1\u5165\u4e86\u89e3node-sqlite3\u65b9\u6cd5\uff0c\u8bf7\u8bbf\u95eenode-sqlite3\u7ef4\u57fa\u9875\u9762\u3002\u8981\u4e86\u89e3SQLite\uff0c\u8bf7\u67e5\u9605SQLite\u6587\u6863\u3002\u5982\u679c\u4f60\u60f3\u4e86\u89e3SQLite\u4e0e\u5176\u4ed6SQL\u6570\u636e\u5e93\u7684\u6bd4\u8f83\uff0c\u8bf7\u53c2\u9605\u6211\u4eec\u7684\u6559\u7a0b\uff1a\u300aSQLite vs MySQL vs PostgreSQL\uff1a\u5173\u7cfb\u6570\u636e\u5e93\u7ba1\u7406\u7cfb\u7edf\u7684\u6bd4\u8f83\u300b\u3002\u8981\u7ee7\u7eed\u5b66\u4e60Node.js\u7684\u65c5\u7a0b\uff0c\u8bf7\u8bbf\u95ee\u300a\u5982\u4f55\u5728Node.js\u4e2d\u7f16\u7801\u300b\u7cfb\u5217\u6559\u7a0b\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u7b80\u4ecb SQLite\u662f\u4e00\u79cd\u6d41\u884c\u7684\u5f00\u6e90SQL\u6570\u636e\u5e93\u5f15\u64ce\uff0c\u7528\u4e8e\u5b58\u50a8\u6570\u636e\u3002\u5b83\u662f\u65e0\u670d\u52a1\u5668\u7684\uff0c\u610f\u5473\u7740\u5b83\u4e0d\u9700\u8981\u670d\u52a1\u5668\u8fd0\u884c\uff0c\u800c 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