{"id":36,"date":"2024-01-29T04:15:09","date_gmt":"2022-11-22T11:56:30","guid":{"rendered":"https:\/\/www.silicloud.com\/zh\/blog\/index.php\/2023\/11\/30\/%e5%a6%82%e4%bd%95%e5%9c%a8mysql%e4%b8%ad%e4%bd%bf%e7%94%a8%e5%ad%98%e5%82%a8%e8%bf%87%e7%a8%8b\/"},"modified":"2025-07-31T21:47:53","modified_gmt":"2025-07-31T13:47:53","slug":"%e5%a6%82%e4%bd%95%e5%9c%a8mysql%e4%b8%ad%e4%bd%bf%e7%94%a8%e5%ad%98%e5%82%a8%e8%bf%87%e7%a8%8b","status":"publish","type":"post","link":"https:\/\/www.silicloud.com\/zh\/blog\/%e5%a6%82%e4%bd%95%e5%9c%a8mysql%e4%b8%ad%e4%bd%bf%e7%94%a8%e5%ad%98%e5%82%a8%e8%bf%87%e7%a8%8b\/","title":{"rendered":"MySQL\u5b58\u50a8\u8fc7\u7a0b\u4ece\u5165\u95e8\u5230\u7cbe\u901a\uff1a\u63d0\u5347\u6570\u636e\u5e93\u6548\u7387\u4e0e\u5b89\u5168\u6027"},"content":{"rendered":"<h3>\u5f15\u8a00<\/h3>\n<p>\u901a\u5e38\u60c5\u51b5\u4e0b\uff0c\u5728\u5904\u7406\u5173\u7cfb\u578b\u6570\u636e\u5e93\u65f6\uff0c\u4f60\u4f1a\u5728\u5e94\u7528\u7a0b\u5e8f\u4ee3\u7801\u4e2d\u76f4\u63a5\u53d1\u51fa\u5404\u79cd\u7ed3\u6784\u5316\u67e5\u8be2\u8bed\u8a00\uff08SQL\uff09\u67e5\u8be2\u6765\u68c0\u7d22\u6216\u64cd\u4f5c\u6570\u636e\uff0c\u4f8b\u5982<code>SELECT<\/code>\u3001<code>INSERT<\/code>\u3001<code>UPDATE<\/code>\u6216<code>DELETE<\/code>\u3002\u8fd9\u4e9b\u8bed\u53e5\u76f4\u63a5\u4f5c\u7528\u4e8e\u548c\u64cd\u4f5c\u5e95\u5c42\u6570\u636e\u5e93\u8868\u3002\u5982\u679c\u591a\u4e2a\u5e94\u7528\u7a0b\u5e8f\u8bbf\u95ee\u540c\u4e00\u4e2a\u6570\u636e\u5e93\u65f6\u9700\u8981\u4f7f\u7528\u76f8\u540c\u7684\u8bed\u53e5\u6216\u8bed\u53e5\u7ec4\uff0c\u5b83\u4eec\u901a\u5e38\u4f1a\u5728\u5404\u4e2a\u5e94\u7528\u7a0b\u5e8f\u4e2d\u91cd\u590d\u51fa\u73b0\u3002<\/p>\n<p>MySQL\uff0c\u4e0e\u8bb8\u591a\u5176\u4ed6\u5173\u7cfb\u578b\u6570\u636e\u5e93\u7ba1\u7406\u7cfb\u7edf\u7c7b\u4f3c\uff0c\u652f\u6301\u4f7f\u7528\u5b58\u50a8\u8fc7\u7a0b\u3002\u5b58\u50a8\u8fc7\u7a0b\u6709\u52a9\u4e8e\u5c06\u4e00\u4e2a\u6216\u591a\u4e2aSQL\u8bed\u53e5\u5206\u7ec4\uff0c\u5e76\u5728\u4e00\u4e2a\u901a\u7528\u540d\u79f0\u4e0b\u91cd\u590d\u4f7f\u7528\uff0c\u5c06\u5e38\u89c1\u7684\u4e1a\u52a1\u903b\u8f91\u5c01\u88c5\u5728\u6570\u636e\u5e93\u5185\u90e8\u3002\u5e94\u7528\u7a0b\u5e8f\u53ef\u4ee5\u8c03\u7528\u8fd9\u6837\u7684\u8fc7\u7a0b\u6765\u4ee5\u4e00\u81f4\u7684\u65b9\u5f0f\u68c0\u7d22\u6216\u64cd\u4f5c\u6570\u636e\u3002<\/p>\n<p>\u901a\u8fc7\u4f7f\u7528\u5b58\u50a8\u8fc7\u7a0b\uff0c\u4f60\u53ef\u4ee5\u4e3a\u5e38\u89c1\u4efb\u52a1\u521b\u5efa\u53ef\u91cd\u7528\u7684\u4f8b\u7a0b\uff0c\u4f9b\u591a\u4e2a\u5e94\u7528\u7a0b\u5e8f\u4f7f\u7528\uff0c\u63d0\u4f9b\u6570\u636e\u9a8c\u8bc1\uff0c\u6216\u8005\u901a\u8fc7\u9650\u5236\u6570\u636e\u5e93\u7528\u6237\u76f4\u63a5\u8bbf\u95ee\u5e95\u5c42\u8868\u548c\u53d1\u51fa\u4efb\u610f\u67e5\u8be2\u6765\u63d0\u4f9b\u989d\u5916\u7684\u6570\u636e\u8bbf\u95ee\u5b89\u5168\u5c42\u3002<\/p>\n<p>\u5728\u672c\u6559\u7a0b\u4e2d\uff0c\u4f60\u5c06\u5b66\u4e60\u4ec0\u4e48\u662f\u5b58\u50a8\u8fc7\u7a0b\uff0c\u4ee5\u53ca\u5982\u4f55\u521b\u5efa\u8fd4\u56de\u6570\u636e\u5e76\u4f7f\u7528\u8f93\u5165\u548c\u8f93\u51fa\u53c2\u6570\u7684\u57fa\u672c\u5b58\u50a8\u8fc7\u7a0b\u3002<\/p>\n<h2>\u5148\u51b3\u6761\u4ef6<\/h2>\n<p>\u8981\u9075\u5faa\u672c\u6307\u5357\uff0c\u4f60\u9700\u8981\u4e00\u53f0\u8fd0\u884c\u57fa\u4e8eSQL\u7684\u5173\u7cfb\u578b\u6570\u636e\u5e93\u7ba1\u7406\u7cfb\u7edf\uff08RDBMS\uff09\u7684\u8ba1\u7b97\u673a\u3002\u672c\u6307\u5357\u4e2d\u7684\u8bf4\u660e\u548c\u793a\u4f8b\u5df2\u5728\u4ee5\u4e0b\u73af\u5883\u4e2d\u9a8c\u8bc1\uff1a<\/p>\n<ul>\n<li>\u4e00\u53f0\u8fd0\u884cUbuntu 20.04\u7684\u670d\u52a1\u5668\uff0c\u62e5\u6709\u5177\u6709\u7ba1\u7406\u6743\u9650\u7684\u975eroot\u7528\u6237\uff0c\u5e76\u914d\u7f6e\u4e86UFW\u9632\u706b\u5899\uff0c\u5982\u6211\u4eec\u7684Ubuntu 20.04\u521d\u59cb\u670d\u52a1\u5668\u8bbe\u7f6e\u6307\u5357\u4e2d\u6240\u8ff0\u3002<\/li>\n<li>\u670d\u52a1\u5668\u4e0a\u5df2\u5b89\u88c5\u5e76\u5b89\u5168\u914d\u7f6eMySQL\uff0c\u5982\u300a\u5982\u4f55\u5728Ubuntu 20.04\u4e0a\u5b89\u88c5MySQL\u300b\u6240\u8ff0\u3002\u672c\u6307\u5357\u5df2\u901a\u8fc7\u975eroot MySQL\u7528\u6237\u9a8c\u8bc1\uff0c\u8be5\u7528\u6237\u662f\u6309\u7167\u7b2c3\u6b65\u4e2d\u63cf\u8ff0\u7684\u8fc7\u7a0b\u521b\u5efa\u7684\u3002<\/li>\n<li>\u5bf9\u6267\u884c<code>SELECT<\/code>\u67e5\u8be2\u4ee5\u4ece\u6570\u636e\u5e93\u68c0\u7d22\u6570\u636e\u6709\u57fa\u672c\u4e86\u89e3\uff0c\u5982\u6211\u4eec\u7684\u300a\u5982\u4f55\u5728SQL\u4e2d\u4ece\u8868\u4e2d\u9009\u62e9\u884c\u300b\u6307\u5357\u6240\u8ff0\u3002<\/li>\n<\/ul>\n<div class=\"post-conf-note\">\n<p class=\"post-note\">\n<p class=\"post-conf-desc\">\u6ce8\u610f<\/p>\n<div>\n<p>\u8bf7\u6ce8\u610f\uff0c\u8bb8\u591aRDBMS\u90fd\u6709\u81ea\u5df1\u72ec\u7279\u7684SQL\u5b9e\u73b0\uff0c\u5e76\u4e14\u5b58\u50a8\u8fc7\u7a0b\u8bed\u6cd5\u4e0d\u5c5e\u4e8e\u5b98\u65b9SQL\u6807\u51c6\u3002\u5c3d\u7ba1\u672c\u6559\u7a0b\u4e2d\u6982\u8ff0\u7684\u547d\u4ee4\u53ef\u80fd\u5728\u5176\u4ed6RDBMS\u4e2d\u6709\u6548\uff0c\u4f46\u5b58\u50a8\u8fc7\u7a0b\u662f\u6570\u636e\u5e93\u7279\u5b9a\u7684\uff0c\u56e0\u6b64\u5982\u679c\u4f60\u5728MySQL\u4ee5\u5916\u7684\u7cfb\u7edf\u4e0a\u6d4b\u8bd5\u5b83\u4eec\uff0c\u786e\u5207\u7684\u8bed\u6cd5\u6216\u8f93\u51fa\u53ef\u80fd\u4f1a\u6709\u6240\u4e0d\u540c\u3002<\/p>\n<\/div>\n<\/div>\n<p>\u4f60\u8fd8\u9700\u8981\u4e00\u4e2a\u7a7a\u6570\u636e\u5e93\uff0c\u4f60\u53ef\u4ee5\u5728\u5176\u4e2d\u521b\u5efa\u8868\u6765\u6f14\u793a\u5b58\u50a8\u8fc7\u7a0b\u7684\u4f7f\u7528\u3002\u6211\u4eec\u9f13\u52b1\u4f60\u9605\u8bfb\u4ee5\u4e0b\u201c\u8fde\u63a5\u5230MySQL\u5e76\u8bbe\u7f6e\u793a\u4f8b\u6570\u636e\u5e93\u201d\u90e8\u5206\uff0c\u4e86\u89e3\u8fde\u63a5\u5230MySQL\u670d\u52a1\u5668\u548c\u521b\u5efa\u672c\u6307\u5357\u4e2d\u793a\u4f8b\u6240\u7528\u6d4b\u8bd5\u6570\u636e\u5e93\u7684\u8be6\u7ec6\u4fe1\u606f\u3002<\/p>\n<h2>\u8fde\u63a5\u5230MySQL\u5e76\u8bbe\u7f6e\u793a\u4f8b\u6570\u636e\u5e93<\/h2>\n<p>\u5728\u672c\u8282\u4e2d\uff0c\u4f60\u5c06\u8fde\u63a5\u5230MySQL\u670d\u52a1\u5668\u5e76\u521b\u5efa\u4e00\u4e2a\u793a\u4f8b\u6570\u636e\u5e93\uff0c\u4ee5\u4fbf\u4f60\u53ef\u4ee5\u9075\u5faa\u672c\u6307\u5357\u4e2d\u7684\u793a\u4f8b\u3002<\/p>\n<p>\u5728\u672c\u6307\u5357\u4e2d\uff0c\u4f60\u5c06\u4f7f\u7528\u4e00\u4e2a\u865a\u6784\u7684\u6c7d\u8f66\u6536\u85cf\u3002\u4f60\u5c06\u5b58\u50a8\u6709\u5173\u5f53\u524d\u62e5\u6709\u7684\u6c7d\u8f66\u7684\u8be6\u7ec6\u4fe1\u606f\uff0c\u5305\u62ec\u5b83\u4eec\u7684\u54c1\u724c\u3001\u578b\u53f7\u3001\u5236\u9020\u5e74\u4efd\u548c\u4ef7\u503c\u3002<\/p>\n<p>\u5982\u679c\u4f60\u7684SQL\u6570\u636e\u5e93\u7cfb\u7edf\u5728\u8fdc\u7a0b\u670d\u52a1\u5668\u4e0a\u8fd0\u884c\uff0c\u8bf7\u4ece\u672c\u5730\u673a\u5668\u901a\u8fc7SSH\u8fde\u63a5\u5230\u4f60\u7684\u670d\u52a1\u5668\uff1a<\/p>\n<pre class=\"post-pre\"><code><ol><li data-prefix=\"$\"><span class=\"token function\">ssh<\/span> <mark>sammy<\/mark>@<mark>your_server_ip<\/mark><\/li><\/ol><\/code><\/pre>\n<p>\u7136\u540e\u6253\u5f00MySQL\u670d\u52a1\u5668\u63d0\u793a\u7b26\uff0c\u5c06<code>sammy<\/code>\u66ff\u6362\u4e3a\u4f60\u7684MySQL\u7528\u6237\u5e10\u6237\u540d\u79f0\uff1a<\/p>\n<pre class=\"post-pre\"><code><ol><li data-prefix=\"$\">mysql <span class=\"token parameter variable\">-u<\/span> <mark>sammy<\/mark> <span class=\"token parameter variable\">-p<\/span><\/li><\/ol><\/code><\/pre>\n<p>\u521b\u5efa\u4e00\u4e2a\u540d\u4e3a<code>procedures<\/code>\u7684\u6570\u636e\u5e93\uff1a<\/p>\n<pre class=\"post-pre\"><code><ol><li data-prefix=\"mysql>\">CREATE DATABASE <mark>procedures<\/mark><span class=\"token punctuation\">;<\/span><\/li><\/ol><\/code><\/pre>\n<p>\u5982\u679c\u6570\u636e\u5e93\u521b\u5efa\u6210\u529f\uff0c\u4f60\u5c06\u6536\u5230\u5982\u4e0b\u8f93\u51fa\uff1a<\/p>\n<pre class=\"post-pre\"><code><div class=\"secondary-code-label\" title=\"Output\">Output<\/div>Query OK, 1 row affected (0.01 sec)<\/code><\/pre>\n<p>\u8981\u9009\u62e9<code>procedures<\/code>\u6570\u636e\u5e93\uff0c\u8bf7\u8fd0\u884c\u4ee5\u4e0b<code>USE<\/code>\u8bed\u53e5\uff1a<\/p>\n<pre class=\"post-pre\"><code><ol><li data-prefix=\"$\">USE <mark>procedures<\/mark><span class=\"token punctuation\">;<\/span><\/li><\/ol><\/code><\/pre>\n<p>\u4f60\u5c06\u6536\u5230\u4ee5\u4e0b\u8f93\u51fa\uff1a<\/p>\n<pre class=\"post-pre\"><code><div class=\"secondary-code-label\" title=\"Output\">Output<\/div>Database changed<\/code><\/pre>\n<p>\u9009\u62e9\u6570\u636e\u5e93\u540e\uff0c\u4f60\u53ef\u4ee5\u5728\u5176\u4e2d\u521b\u5efa\u793a\u4f8b\u8868\u3002<code>cars<\/code>\u8868\u5c06\u5305\u542b\u6570\u636e\u5e93\u4e2d\u6c7d\u8f66\u7684\u7b80\u5316\u6570\u636e\u3002\u5b83\u5c06\u5305\u542b\u4ee5\u4e0b\u5217\uff1a<\/p>\n<p>\u8fd9\u662f\u6587\u7ae0\u300a\u5982\u4f55\u5728MySQL\u4e2d\u4f7f\u7528\u5b58\u50a8\u8fc7\u7a0b\u300b\u7684\u7b2c2\u90e8\u5206\uff08\u51718\u90e8\u5206\uff09\u3002<\/p>\n<p>\u9996\u5148\uff0c\u6211\u4eec\u5b9a\u4e49<code>cars<\/code>\u8868\u7684\u5217\u7ed3\u6784\uff1a<\/p>\n<ul>\n<li><strong>make (\u54c1\u724c)<\/strong>: \u4f7f\u7528<code>varchar<\/code>\u6570\u636e\u7c7b\u578b\uff0c\u6700\u5927\u957f\u5ea6100\u4e2a\u5b57\u7b26\uff0c\u5b58\u50a8\u6bcf\u8f86\u8f66\u7684\u54c1\u724c\u4fe1\u606f\u3002<\/li>\n<li><strong>model (\u578b\u53f7)<\/strong>: \u4f7f\u7528<code>varchar<\/code>\u6570\u636e\u7c7b\u578b\uff0c\u6700\u5927\u957f\u5ea6100\u4e2a\u5b57\u7b26\uff0c\u5b58\u50a8\u6c7d\u8f66\u7684\u578b\u53f7\u540d\u79f0\u3002<\/li>\n<li><strong>year (\u5e74\u4efd)<\/strong>: \u4f7f\u7528<code>int<\/code>\u6570\u636e\u7c7b\u578b\uff0c\u5b58\u50a8\u6c7d\u8f66\u7684\u5236\u9020\u5e74\u4efd\uff0c\u7528\u4e8e\u8868\u793a\u6570\u503c\u3002<\/li>\n<li><strong>value (\u4ef7\u503c)<\/strong>: \u4f7f\u7528<code>decimal<\/code>\u6570\u636e\u7c7b\u578b\uff0c\u603b\u517110\u4f4d\u6570\u5b57\uff0c\u5176\u4e2d\u5c0f\u6570\u70b9\u540e\u4fdd\u75592\u4f4d\uff0c\u5b58\u50a8\u6c7d\u8f66\u7684\u4ef7\u503c\u3002<\/li>\n<\/ul>\n<p>\u4f7f\u7528\u4ee5\u4e0b\u547d\u4ee4\u521b\u5efa\u793a\u4f8b\u8868\uff1a<\/p>\n<pre class=\"post-pre\"><code><ol>\r\n  <li data-prefix=\"mysql>\">CREATE TABLE cars (\r\n  <\/li>\r\n  <li data-prefix=\"mysql>\">    make varchar(100),\r\n  <\/li>\r\n  <li data-prefix=\"mysql>\">    model varchar(100),\r\n  <\/li>\r\n  <li data-prefix=\"mysql>\">    year int,\r\n  <\/li>\r\n  <li data-prefix=\"mysql>\">    value decimal(10, 2)\r\n  <\/li>\r\n  <li data-prefix=\"mysql>\">);\r\n  <\/li>\r\n<\/ol>\r\n<\/code><\/pre>\n<p>\u5982\u679c\u770b\u5230\u4ee5\u4e0b\u8f93\u51fa\uff0c\u5219\u8868\u793a\u8868\u5df2\u6210\u529f\u521b\u5efa\uff1a<\/p>\n<pre class=\"post-pre\"><code><div class=\"secondary-code-label\" title=\"Output\">Output<\/div>Query OK, 0 rows affected (0.00 sec)\r\n<\/code><\/pre>\n<p>\u63a5\u4e0b\u6765\uff0c\u901a\u8fc7\u8fd0\u884c\u4ee5\u4e0b<code>INSERT INTO<\/code>\u64cd\u4f5c\uff0c\u5411<code>cars<\/code>\u8868\u4e2d\u52a0\u8f7d\u4e00\u4e9b\u793a\u4f8b\u6570\u636e\uff1a<\/p>\n<pre class=\"post-pre\"><code><ol>\r\n  <li data-prefix=\"mysql>\">INSERT INTO cars\r\n  <\/li>\r\n  <li data-prefix=\"mysql>\">VALUES\r\n  <\/li>\r\n  <li data-prefix=\"mysql>\">('Porsche', '911 GT3', 2020, 169700),\r\n  <\/li>\r\n  <li data-prefix=\"mysql>\">('Porsche', 'Cayman GT4', 2018, 118000),\r\n  <\/li>\r\n  <li data-prefix=\"mysql>\">('Porsche', 'Panamera', 2022, 113200),\r\n  <\/li>\r\n  <li data-prefix=\"mysql>\">('Porsche', 'Macan', 2019, 27400),\r\n  <\/li>\r\n  <li data-prefix=\"mysql>\">('Porsche', '718 Boxster', 2017, 48880),\r\n  <\/li>\r\n  <li data-prefix=\"mysql>\">('Ferrari', '488 GTB', 2015, 254750),\r\n  <\/li>\r\n  <li data-prefix=\"mysql>\">('Ferrari', 'F8 Tributo', 2019, 375000),\r\n  <\/li>\r\n  <li data-prefix=\"mysql>\">('Ferrari', 'SF90 Stradale', 2020, 627000),\r\n  <\/li>\r\n  <li data-prefix=\"mysql>\">('Ferrari', '812 Superfast', 2017, 335300),\r\n  <\/li>\r\n  <li data-prefix=\"mysql>\">('Ferrari', 'GTC4Lusso', 2016, 268000);\r\n  <\/li>\r\n<\/ol>\r\n<\/code><\/pre>\n<p>\u4e0a\u8ff0<code>INSERT INTO<\/code>\u64cd\u4f5c\u5c06\u5411\u8868\u4e2d\u6dfb\u52a0\u5341\u8f86\u793a\u4f8b\u8dd1\u8f66\uff0c\u5305\u62ec\u4e94\u6b3e\u4fdd\u65f6\u6377\uff08Porsche\uff09\u548c\u4e94\u6b3e\u6cd5\u62c9\u5229\uff08Ferrari\uff09\u8f66\u578b\u3002\u4ee5\u4e0b\u8f93\u51fa\u8868\u660e\u6240\u6709\u884c\u90fd\u5df2\u6210\u529f\u6dfb\u52a0\uff1a<\/p>\n<pre class=\"post-pre\"><code><div class=\"secondary-code-label\" title=\"\u8f93\u51fa\">\u8f93\u51fa<\/div>Query OK, 10 rows affected (0.00 sec)\r\nRecords: 10  Duplicates: 0  Warnings: 0\r\n<\/code><\/pre>\n<p>\u81f3\u6b64\uff0c\u60a8\u5df2\u51c6\u5907\u597d\u7ee7\u7eed\u5b66\u4e60\u672c\u6307\u5357\u7684\u5176\u4f59\u90e8\u5206\uff0c\u5e76\u5f00\u59cb\u5728SQL\u4e2d\u4f7f\u7528\u5b58\u50a8\u8fc7\u7a0b\u3002<\/p>\n<h2>\u5b58\u50a8\u8fc7\u7a0b\u7b80\u4ecb<\/h2>\n<p>MySQL\u4ee5\u53ca\u8bb8\u591a\u5176\u4ed6\u5173\u7cfb\u578b\u6570\u636e\u5e93\u7cfb\u7edf\u4e2d\u7684\u5b58\u50a8\u8fc7\u7a0b\u662f\u547d\u540d\u5bf9\u8c61\uff0c\u5b83\u4eec\u5305\u542b\u4e00\u4e2a\u6216\u591a\u4e2a\u6307\u4ee4\uff0c\u5f53\u88ab\u8c03\u7528\u65f6\uff0c\u6570\u636e\u5e93\u4f1a\u6309\u987a\u5e8f\u6267\u884c\u8fd9\u4e9b\u6307\u4ee4\u3002\u6700\u57fa\u672c\u7684\u4f8b\u5b50\u662f\uff0c\u5b58\u50a8\u8fc7\u7a0b\u53ef\u4ee5\u5c06\u4e00\u4e2a\u5e38\u7528\u8bed\u53e5\u4fdd\u5b58\u4e3a\u4e00\u4e2a\u53ef\u91cd\u7528\u7684\u4f8b\u7a0b\uff0c\u4f8b\u5982\u4f7f\u7528\u5e38\u7528\u7b5b\u9009\u6761\u4ef6\u4ece\u6570\u636e\u5e93\u4e2d\u68c0\u7d22\u6570\u636e\u3002\u4f8b\u5982\uff0c\u60a8\u53ef\u4ee5\u521b\u5efa\u4e00\u4e2a\u5b58\u50a8\u8fc7\u7a0b\u6765\u68c0\u7d22\u5728\u8fc7\u53bb\u7ed9\u5b9a\u6708\u4efd\u5185\u4e0b\u8fc7\u8ba2\u5355\u7684\u5728\u7ebf\u5546\u5e97\u5ba2\u6237\u3002\u5728\u6700\u590d\u6742\u7684\u573a\u666f\u4e2d\uff0c\u5b58\u50a8\u8fc7\u7a0b\u53ef\u4ee5\u4ee3\u8868\u63cf\u8ff0\u590d\u6742\u4e1a\u52a1\u903b\u8f91\u7684\u5e7f\u6cdb\u7a0b\u5e8f\uff0c\u7528\u4e8e\u6784\u5efa\u5065\u58ee\u7684\u5e94\u7528\u7a0b\u5e8f\u3002<\/p>\n<p>\u5b58\u50a8\u8fc7\u7a0b\u4e2d\u7684\u6307\u4ee4\u96c6\u53ef\u4ee5\u5305\u62ec\u5e38\u89c1\u7684SQL\u8bed\u53e5\uff0c\u4f8b\u5982\u8fd4\u56de\u6216\u64cd\u4f5c\u6570\u636e\u7684SELECT\u6216INSERT\u67e5\u8be2\u3002\u6b64\u5916\uff0c\u5b58\u50a8\u8fc7\u7a0b\u8fd8\u53ef\u4ee5\u4f7f\u7528\uff1a<\/p>\n<ul class=\"post-ul\">\n<li>\u4f20\u9012\u7ed9\u5b58\u50a8\u8fc7\u7a0b\u6216\u901a\u8fc7\u5176\u8fd4\u56de\u7684\u53c2\u6570\u3002<\/li>\n<li>\u58f0\u660e\u53d8\u91cf\u4ee5\u76f4\u63a5\u5728\u8fc7\u7a0b\u4ee3\u7801\u4e2d\u5904\u7406\u68c0\u7d22\u5230\u7684\u6570\u636e\u3002<\/li>\n<li>\u6761\u4ef6\u8bed\u53e5\uff0c\u5141\u8bb8\u6839\u636e\u7279\u5b9a\u6761\u4ef6\uff08\u4f8b\u5982IF\u6216CASE\u6307\u4ee4\uff09\u6267\u884c\u5b58\u50a8\u8fc7\u7a0b\u4ee3\u7801\u7684\u67d0\u4e9b\u90e8\u5206\u3002<\/li>\n<li>\u5faa\u73af\uff0c\u4f8b\u5982WHILE\u3001LOOP\u548cREPEAT\uff0c\u5141\u8bb8\u591a\u6b21\u6267\u884c\u4ee3\u7801\u7684\u67d0\u4e9b\u90e8\u5206\uff0c\u4f8b\u5982\u5bf9\u68c0\u7d22\u5230\u7684\u6570\u636e\u96c6\u4e2d\u7684\u6bcf\u4e00\u884c\u3002<\/li>\n<li>\u9519\u8bef\u5904\u7406\u6307\u4ee4\uff0c\u4f8b\u5982\u5411\u8bbf\u95ee\u8fc7\u7a0b\u7684\u6570\u636e\u5e93\u7528\u6237\u8fd4\u56de\u9519\u8bef\u6d88\u606f\u3002<\/li>\n<li>\u8c03\u7528\u6570\u636e\u5e93\u4e2d\u7684\u5176\u4ed6\u5b58\u50a8\u8fc7\u7a0b\u3002<\/li>\n<\/ul>\n<div class=\"post-conf-note\">\n<p class=\"post-note\">\n<p class=\"post-conf-desc\">\u6ce8\u610f<\/p>\n<div>\n<p>\u6ce8\u610f\uff1aMySQL\u652f\u6301\u7684\u4e30\u5bcc\u8bed\u6cd5\u5141\u8bb8\u7f16\u5199\u5065\u58ee\u7684\u7a0b\u5e8f\u5e76\u4f7f\u7528\u5b58\u50a8\u8fc7\u7a0b\u89e3\u51b3\u590d\u6742\u95ee\u9898\u3002\u672c\u6307\u5357\u4ec5\u6db5\u76d6\u5b58\u50a8\u8fc7\u7a0b\u7684\u57fa\u672c\u7528\u6cd5\uff0c\u5305\u62ec\u5b58\u50a8\u8fc7\u7a0b\u4e3b\u4f53\u4e2d\u5305\u542b\u7684SQL\u8bed\u53e5\u3001\u8f93\u5165\u548c\u8f93\u51fa\u53c2\u6570\u3002\u6267\u884c\u6761\u4ef6\u4ee3\u7801\u3001\u4f7f\u7528\u53d8\u91cf\u3001\u5faa\u73af\u548c\u81ea\u5b9a\u4e49\u9519\u8bef\u5904\u7406\u8d85\u51fa\u4e86\u672c\u6307\u5357\u7684\u8303\u56f4\u3002\u6211\u4eec\u9f13\u52b1\u60a8\u5728MySQL\u5b98\u65b9\u6587\u6863\u4e2d\u4e86\u89e3\u66f4\u591a\u5173\u4e8e\u5b58\u50a8\u8fc7\u7a0b\u7684\u4fe1\u606f\u3002<\/p>\n<\/div>\n<\/div>\n<p>\u5f53\u901a\u8fc7\u540d\u79f0\u8c03\u7528\u8fc7\u7a0b\u65f6\uff0c\u6570\u636e\u5e93\u5f15\u64ce\u4f1a\u6309\u7167\u5b9a\u4e49\uff0c\u9010\u6761\u6267\u884c\u6307\u4ee4\u3002<\/p>\n<p>\u6570\u636e\u5e93\u7528\u6237\u5fc5\u987b\u62e5\u6709\u9002\u5f53\u7684\u6743\u9650\u624d\u80fd\u6267\u884c\u7ed9\u5b9a\u8fc7\u7a0b\u3002\u8fd9\u79cd\u6743\u9650\u8981\u6c42\u63d0\u4f9b\u4e86\u4e00\u5c42\u5b89\u5168\u6027\uff0c\u7981\u6b62\u76f4\u63a5\u8bbf\u95ee\u6570\u636e\u5e93\uff0c\u540c\u65f6\u5141\u8bb8\u7528\u6237\u8bbf\u95ee\u4fdd\u8bc1\u5b89\u5168\u6267\u884c\u7684\u5355\u4e2a\u8fc7\u7a0b\u3002<\/p>\n<p>\u5b58\u50a8\u8fc7\u7a0b\u76f4\u63a5\u5728\u6570\u636e\u5e93\u670d\u52a1\u5668\u4e0a\u6267\u884c\uff0c\u5728\u672c\u5730\u6267\u884c\u6240\u6709\u8ba1\u7b97\uff0c\u5e76\u5728\u5b8c\u6210\u540e\u624d\u5c06\u7ed3\u679c\u8fd4\u56de\u7ed9\u8c03\u7528\u7528\u6237\u3002<\/p>\n<p>\u5982\u679c\u60a8\u60f3\u66f4\u6539\u8fc7\u7a0b\u884c\u4e3a\uff0c\u53ef\u4ee5\u5728\u6570\u636e\u5e93\u4e2d\u66f4\u65b0\u8fc7\u7a0b\uff0c\u4f7f\u7528\u5b83\u7684\u5e94\u7528\u7a0b\u5e8f\u5c06\u81ea\u52a8\u83b7\u53d6\u65b0\u7248\u672c\u3002\u6240\u6709\u7528\u6237\u5c06\u7acb\u5373\u5f00\u59cb\u4f7f\u7528\u65b0\u7684\u8fc7\u7a0b\u4ee3\u7801\uff0c\u800c\u65e0\u9700\u8c03\u6574\u5176\u5e94\u7528\u7a0b\u5e8f\u3002<\/p>\n<p>\u4ee5\u4e0b\u662f\u7528\u4e8e\u521b\u5efa\u5b58\u50a8\u8fc7\u7a0b\u7684SQL\u4ee3\u7801\u7684\u4e00\u822c\u7ed3\u6784\uff1a<\/p>\n<pre class=\"post-pre\"><code><ol><li data-prefix=\"mysql>\">DELIMITER \/\/\r\n<\/li><li data-prefix=\"mysql>\">CREATE PROCEDURE procedure_name<span class=\"token punctuation\">(<\/span>parameter_1, parameter_2, <span class=\"token builtin class-name\">.<\/span> <span class=\"token builtin class-name\">.<\/span> ., parameter_n<span class=\"token punctuation\">)<\/span>\r\n<\/li><li data-prefix=\"mysql>\">BEGIN\r\n<\/li><li data-prefix=\"mysql>\">    instruction_1<span class=\"token punctuation\">;<\/span>\r\n<\/li><li data-prefix=\"mysql>\">    instruction_2<span class=\"token punctuation\">;<\/span>\r\n<\/li><li data-prefix=\"mysql>\">    <span class=\"token builtin class-name\">.<\/span> <span class=\"token builtin class-name\">.<\/span> <span class=\"token builtin class-name\">.<\/span>\r\n<\/li><li data-prefix=\"mysql>\">    instruction_n<span class=\"token punctuation\">;<\/span>\r\n<\/li><li data-prefix=\"mysql>\">END \/\/\r\n<\/li><li data-prefix=\"mysql>\">DELIMITER <span class=\"token punctuation\">;<\/span>\r\n<\/li><\/ol>\r\n<\/code><\/pre>\n<p>\u6b64\u4ee3\u7801\u7247\u6bb5\u4e2d\u7684\u7b2c\u4e00\u6761\u548c\u6700\u540e\u4e00\u6761\u6307\u4ee4\u5206\u522b\u662f <code>DELIMITER \/\/<\/code> \u548c <code>DELIMITER ;<\/code>\u3002\u901a\u5e38\uff0cMySQL\u4f7f\u7528\u5206\u53f7 (<code>;<\/code>) \u4f5c\u4e3a\u8bed\u53e5\u7684\u5206\u9694\u7b26\uff0c\u6307\u793a\u8bed\u53e5\u7684\u5f00\u59cb\u548c\u7ed3\u675f\u3002\u5982\u679c\u5728MySQL\u63a7\u5236\u53f0\u4e2d\u6267\u884c\u591a\u6761\u7528\u5206\u53f7\u5206\u9694\u7684\u8bed\u53e5\uff0c\u5b83\u4eec\u5c06\u88ab\u89c6\u4e3a\u72ec\u7acb\u7684\u547d\u4ee4\uff0c\u5e76\u4f9d\u6b21\u72ec\u7acb\u6267\u884c\u3002\u7136\u800c\uff0c\u5b58\u50a8\u8fc7\u7a0b\u53ef\u4ee5\u5305\u542b\u591a\u6761\u547d\u4ee4\uff0c\u8fd9\u4e9b\u547d\u4ee4\u5728\u5b58\u50a8\u8fc7\u7a0b\u88ab\u8c03\u7528\u65f6\u4f1a\u6309\u987a\u5e8f\u6267\u884c\u3002\u8fd9\u5728\u5c1d\u8bd5\u544a\u8bc9MySQL\u521b\u5efa\u65b0\u8fc7\u7a0b\u65f6\u4f1a\u5e26\u6765\u56f0\u96be\u3002\u6570\u636e\u5e93\u5f15\u64ce\u4f1a\u5728\u5b58\u50a8\u8fc7\u7a0b\u4f53\u4e2d\u9047\u5230\u5206\u53f7\uff0c\u5e76\u8ba4\u4e3a\u5b83\u5e94\u8be5\u505c\u6b62\u6267\u884c\u5f53\u524d\u8bed\u53e5\u3002\u5728\u8fd9\u79cd\u60c5\u51b5\u4e0b\uff0c\u9884\u671f\u7684\u8bed\u53e5\u662f\u6574\u4e2a\u8fc7\u7a0b\u521b\u5efa\u4ee3\u7801\uff0c\u800c\u4e0d\u662f\u8fc7\u7a0b\u5185\u90e8\u7684\u5355\u4e2a\u6307\u4ee4\uff0c\u56e0\u6b64MySQL\u4f1a\u8bef\u89e3\u60a8\u7684\u610f\u56fe\u3002<\/p>\n<p>\u4e3a\u4e86\u89e3\u51b3\u8fd9\u4e2a\u9650\u5236\uff0c\u60a8\u53ef\u4ee5\u4f7f\u7528 <code>DELIMITER<\/code> \u547d\u4ee4\uff0c\u5728 <code>CREATE PROCEDURE<\/code> \u8c03\u7528\u671f\u95f4\uff0c\u5c06\u5206\u9694\u7b26\u4ece <code>;<\/code> \u4e34\u65f6\u66f4\u6539\u4e3a <code>\/\/<\/code>\u3002\u8fd9\u6837\uff0c\u5b58\u50a8\u8fc7\u7a0b\u4f53\u5185\u7684\u6240\u6709\u5206\u53f7\u90fd\u5c06\u539f\u6837\u4f20\u9012\u7ed9\u670d\u52a1\u5668\u3002\u5728\u6574\u4e2a\u8fc7\u7a0b\u521b\u5efa\u5b8c\u6210\u540e\uff0c\u901a\u8fc7\u6700\u540e\u7684 <code>DELIMITER ;<\/code> \u547d\u4ee4\u5c06\u5206\u9694\u7b26\u6539\u56de <code>;<\/code>\u3002<\/p>\n<p>\u521b\u5efa\u65b0\u8fc7\u7a0b\u7684\u6838\u5fc3\u4ee3\u7801\u662f <code>CREATE PROCEDURE<\/code> \u8c03\u7528\uff0c\u540e\u8ddf\u8fc7\u7a0b\u7684\u540d\u79f0\uff1a\u793a\u4f8b\u4e2d\u7684 <code>procedure_name<\/code>\u3002\u8fc7\u7a0b\u540d\u79f0\u540e\u662f\u53ef\u9009\u7684\u53c2\u6570\u5217\u8868\uff0c\u8fd9\u4e9b\u53c2\u6570\u5c06\u88ab\u8fc7\u7a0b\u63a5\u53d7\u3002\u6700\u540e\u4e00\u90e8\u5206\u662f\u8fc7\u7a0b\u4f53\uff0c\u5b83\u88ab\u5305\u542b\u5728 <code>BEGIN<\/code> \u548c <code>END<\/code> \u8bed\u53e5\u4e2d\u3002\u5185\u90e8\u662f\u8fc7\u7a0b\u4ee3\u7801\uff0c\u53ef\u4ee5\u5305\u542b\u5355\u4e2aSQL\u8bed\u53e5\uff08\u4f8b\u5982 <code>SELECT<\/code> \u67e5\u8be2\uff09\u6216\u66f4\u590d\u6742\u7684\u4ee3\u7801\u3002<\/p>\n<p><code>END<\/code> \u547d\u4ee4\u4ee5 <code>\/\/<\/code> \u7ed3\u5c3e\uff0c\u8fd9\u662f\u4e00\u4e2a\u4e34\u65f6\u5206\u9694\u7b26\uff0c\u800c\u4e0d\u662f\u5178\u578b\u7684\u5206\u53f7\u3002<\/p>\n<p>\u5728\u4e0b\u4e00\u8282\u4e2d\uff0c\u60a8\u5c06\u521b\u5efa\u4e00\u4e2a\u4e0d\u5e26\u53c2\u6570\u7684\u57fa\u672c\u5b58\u50a8\u8fc7\u7a0b\uff0c\u5176\u4e2d\u5305\u542b\u4e00\u4e2a\u7b80\u5355\u7684\u67e5\u8be2\u3002<\/p>\n<h2>\u521b\u5efa\u4e0d\u5e26\u53c2\u6570\u7684\u5b58\u50a8\u8fc7\u7a0b<\/h2>\n<p>\u5728\u672c\u8282\u4e2d\uff0c\u60a8\u5c06\u521b\u5efa\u7b2c\u4e00\u4e2a\u5b58\u50a8\u8fc7\u7a0b\uff0c\u5b83\u5c01\u88c5\u4e86\u4e00\u4e2a\u7b80\u5355\u7684SQL <code>SELECT<\/code> \u8bed\u53e5\uff0c\u7528\u4e8e\u8fd4\u56de\u6309\u54c1\u724c\u548c\u4ef7\u503c\u964d\u5e8f\u6392\u5217\u7684\u6c7d\u8f66\u5217\u8868\u3002<\/p>\n<p>\u9996\u5148\u6267\u884c\u60a8\u5c06\u8981\u4f7f\u7528\u7684 <code>SELECT<\/code> \u8bed\u53e5\uff1a<\/p>\n<pre class=\"post-pre\"><code><ol><li data-prefix=\"mysql>\">SELECT * FROM cars ORDER BY make, value DESC<span class=\"token punctuation\">;<\/span>\r\n<\/li><\/ol>\r\n<\/code><\/pre>\n<p>\u6570\u636e\u5e93\u5c06\u8fd4\u56de <code>cars<\/code> \u8868\u4e2d\u7684\u6c7d\u8f66\u5217\u8868\uff0c\u9996\u5148\u6309\u54c1\u724c\u6392\u5e8f\uff0c\u7136\u540e\u5728\u540c\u4e00\u54c1\u724c\u5185\u6309\u4ef7\u503c\u964d\u5e8f\u6392\u5e8f\uff1a<\/p>\n<pre class=\"post-pre\"><code><div class=\"secondary-code-label\" title=\"Output\">\u8f93\u51fa<\/div>+---------+---------------+------+-----------+\r\n| make    | model         | year | value     |\r\n+---------+---------------+------+-----------+\r\n| Ferrari | SF90 Stradale | 2020 | 627000.00 |\r\n| Ferrari | F8 Tributo    | 2019 | 375000.00 |\r\n| Ferrari | 812 Superfast | 2017 | 335300.00 |\r\n| Ferrari | GTC4Lusso     | 2016 | 268000.00 |\r\n| Ferrari | 488 GTB       | 2015 | 254750.00 |\r\n| Porsche | 911 GT3       | 2020 | 169700.00 |\r\n| Porsche | Cayman GT4    | 2018 | 118000.00 |\r\n| Porsche | Panamera      | 2022 | 113200.00 |\r\n| Porsche | 718 Boxster   | 2017 |  48880.00 |\r\n| Porsche | Macan         | 2019 |  27400.00 |\r\n+---------+---------------+------+-----------+\r\n10 rows in set (0.00 sec)\r\n<\/code><\/pre>\n<p>\u6700\u6709\u4ef7\u503c\u7684\u6cd5\u62c9\u5229\u4f4d\u4e8e\u5217\u8868\u9876\u90e8\uff0c\u800c\u4ef7\u503c\u6700\u4f4e\u7684\u4fdd\u65f6\u6377\u51fa\u73b0\u5728\u5e95\u90e8\u3002<\/p>\n<p>\u5047\u8bbe\u6b64\u67e5\u8be2\u5c06\u9891\u7e41\u7528\u4e8e\u591a\u4e2a\u5e94\u7528\u7a0b\u5e8f\u6216\u7531\u591a\u4e2a\u7528\u6237\u4f7f\u7528\uff0c\u5e76\u4e14\u60a8\u5e0c\u671b\u786e\u4fdd\u6bcf\u4e2a\u4eba\u90fd\u4f7f\u7528\u5b8c\u5168\u76f8\u540c\u7684\u65b9\u5f0f\u5bf9\u7ed3\u679c\u8fdb\u884c\u6392\u5e8f\u3002\u4e3a\u6b64\uff0c\u60a8\u5e0c\u671b\u521b\u5efa\u4e00\u4e2a\u5b58\u50a8\u8fc7\u7a0b\uff0c\u5c06\u8be5\u8bed\u53e5\u4fdd\u5b58\u4e3a\u4e00\u4e2a\u53ef\u91cd\u7528\u7684\u547d\u540d\u8fc7\u7a0b\u3002<\/p>\n<p>\u8981\u521b\u5efa\u6b64\u5b58\u50a8\u8fc7\u7a0b\uff0c\u8bf7\u6267\u884c\u4ee5\u4e0b\u4ee3\u7801\u7247\u6bb5\uff1a<\/p>\n<pre class=\"post-pre\"><code><ol><li data-prefix=\"mysql>\">DELIMITER \/\/\r\n<\/li><li data-prefix=\"mysql>\">CREATE PROCEDURE <mark>get_all_cars<\/mark><span class=\"token punctuation\">()<\/span>\r\n<\/li><li data-prefix=\"mysql>\">BEGIN\r\n<\/li><li data-prefix=\"mysql>\">    SELECT * FROM cars ORDER BY make, value DESC<span class=\"token punctuation\">;<\/span>\r\n<\/li><li data-prefix=\"mysql>\">END \/\/\r\n<\/li><li data-prefix=\"mysql>\">DELIMITER <span class=\"token punctuation\">;<\/span>\r\n<\/li><\/ol>\r\n<\/code><\/pre>\n<p>\u6b63\u5982\u4e0a\u4e00\u8282\u6240\u8ff0\uff0c\u7b2c\u4e00\u4e2a\u548c\u6700\u540e\u4e00\u4e2a\u547d\u4ee4\uff08<code>DELIMITER \/\/<\/code> \u548c <code>DELIMITER ;<\/code>\uff09\u544a\u8bc9 MySQL \u5728\u5b58\u50a8\u8fc7\u7a0b\u521b\u5efa\u671f\u95f4\uff0c\u505c\u6b62\u5c06\u5206\u53f7\u5b57\u7b26\u89c6\u4e3a\u8bed\u53e5\u5206\u9694\u7b26\u3002<\/p>\n<p><code>CREATE PROCEDURE<\/code> SQL \u547d\u4ee4\u540e\u9762\u8ddf\u7740\u5b58\u50a8\u8fc7\u7a0b\u540d\u79f0 <code>get_all_cars<\/code>\uff0c\u60a8\u53ef\u4ee5\u6839\u636e\u5b58\u50a8\u8fc7\u7a0b\u7684\u529f\u80fd\u6765\u5b9a\u4e49\u5b83\u3002\u5728\u5b58\u50a8\u8fc7\u7a0b\u540d\u79f0\u4e4b\u540e\uff0c\u6709\u4e00\u5bf9\u62ec\u53f7 <code>()<\/code>\uff0c\u60a8\u53ef\u4ee5\u5728\u5176\u4e2d\u6dfb\u52a0\u53c2\u6570\u3002\u5728\u8fd9\u4e2a\u4f8b\u5b50\u4e2d\uff0c\u5b58\u50a8\u8fc7\u7a0b\u4e0d\u4f7f\u7528\u53c2\u6570\uff0c\u6240\u4ee5\u62ec\u53f7\u662f\u7a7a\u7684\u3002\u7136\u540e\uff0c\u5728\u5b9a\u4e49\u5b58\u50a8\u8fc7\u7a0b\u4ee3\u7801\u5757\u5f00\u59cb\u548c\u7ed3\u675f\u7684 <code>BEGIN<\/code> \u548c <code>END<\/code> \u547d\u4ee4\u4e4b\u95f4\uff0c\u4e4b\u524d\u4f7f\u7528\u7684 <code>SELECT<\/code> \u8bed\u53e5\u88ab\u539f\u6837\u5199\u5165\u3002<\/p>\n<div class=\"post-conf-note\">\n<p class=\"post-note\">\n<p class=\"post-conf-desc\">\u6ce8\u610f<\/p>\n<div>\n\u6ce8\u610f\uff1a\u6839\u636e\u60a8\u7684 MySQL \u7528\u6237\u6743\u9650\uff0c\u6267\u884c <code>CREATE PROCEDURE<\/code> \u547d\u4ee4\u65f6\u53ef\u80fd\u4f1a\u6536\u5230\u9519\u8bef\uff1a<code>ERROR 1044 (42000): Access denied for user 'sammy'@'localhost' to database 'procedures'<\/code>\u3002\u8981\u6388\u4e88\u7528\u6237\u521b\u5efa\u548c\u6267\u884c\u5b58\u50a8\u8fc7\u7a0b\u7684\u6743\u9650\uff0c\u8bf7\u4ee5 root \u7528\u6237\u8eab\u4efd\u767b\u5f55 MySQL \u5e76\u6267\u884c\u4ee5\u4e0b\u547d\u4ee4\uff0c\u6839\u636e\u9700\u8981\u66ff\u6362 MySQL \u7528\u6237\u540d\u548c\u4e3b\u673a\uff1a<br \/>\n<code>GRANT CREATE ROUTINE, ALTER ROUTINE, EXECUTE on *.* TO 'sammy'@'localhost';<\/code><br \/>\n<code>FLUSH PRIVILEGES;<\/code>\n<\/div>\n<\/div>\n<p>\u66f4\u65b0\u7528\u6237\u6743\u9650\u540e\uff0c\u4ee5 root \u8eab\u4efd\u9000\u51fa\uff0c\u7136\u540e\u4ee5\u8be5\u7528\u6237\u8eab\u4efd\u91cd\u65b0\u767b\u5f55\uff0c\u5e76\u91cd\u65b0\u8fd0\u884c <code>CREATE PROCEDURE<\/code> \u8bed\u53e5\u3002<\/p>\n<p>\u60a8\u53ef\u4ee5\u5728\u300a\u5b58\u50a8\u4f8b\u7a0b\u548c MySQL \u6743\u9650\u300b\u6587\u6863\u4e2d\u4e86\u89e3\u66f4\u591a\u5173\u4e8e\u5c06\u5b58\u50a8\u8fc7\u7a0b\u6743\u9650\u5e94\u7528\u4e8e\u6570\u636e\u5e93\u7528\u6237\u7684\u4fe1\u606f\u3002<\/p>\n<p>\u6570\u636e\u5e93\u5c06\u8fd4\u56de\u6210\u529f\u6d88\u606f\uff1a<\/p>\n<pre class=\"post-pre\"><code><div class=\"secondary-code-label\" title=\"Output\">\u8f93\u51fa<\/div>Query OK, 0 rows affected (0.02 sec)\r\n<\/code><\/pre>\n<p><code>get_all_cars<\/code> \u5b58\u50a8\u8fc7\u7a0b\u73b0\u5728\u5df2\u4fdd\u5b58\u5230\u6570\u636e\u5e93\u4e2d\uff0c\u5f53\u88ab\u8c03\u7528\u65f6\uff0c\u5b83\u5c06\u6309\u539f\u6837\u6267\u884c\u5df2\u4fdd\u5b58\u7684\u8bed\u53e5\u3002<\/p>\n<p>\u8981\u6267\u884c\u5df2\u4fdd\u5b58\u7684\u5b58\u50a8\u8fc7\u7a0b\uff0c\u60a8\u53ef\u4ee5\u4f7f\u7528 <code>CALL<\/code> SQL \u547d\u4ee4\uff0c\u540e\u8ddf\u5b58\u50a8\u8fc7\u7a0b\u540d\u79f0\u3002\u5c1d\u8bd5\u8fd0\u884c\u65b0\u521b\u5efa\u7684\u5b58\u50a8\u8fc7\u7a0b\uff0c\u5982\u4e0b\u6240\u793a\uff1a<\/p>\n<pre class=\"post-pre\"><code><ol><li data-prefix=\"mysql>\">CALL <mark>get_all_cars<\/mark><span class=\"token punctuation\">;<\/span>\r\n<\/li><\/ol>\r\n<\/code><\/pre>\n<p>\u5b58\u50a8\u8fc7\u7a0b\u540d\u79f0 <code>get_all_cars<\/code> \u662f\u60a8\u4f7f\u7528\u8be5\u5b58\u50a8\u8fc7\u7a0b\u6240\u9700\u7684\u5168\u90e8\u3002\u60a8\u4e0d\u518d\u9700\u8981\u624b\u52a8\u8f93\u5165\u4e4b\u524d\u4f7f\u7528\u7684 <code>SELECT<\/code> \u8bed\u53e5\u7684\u4efb\u4f55\u90e8\u5206\u3002\u6570\u636e\u5e93\u5c06\u663e\u793a\u7ed3\u679c\uff0c\u5c31\u50cf\u4e4b\u524d\u8fd0\u884c <code>SELECT<\/code> \u8bed\u53e5\u7684\u8f93\u51fa\u4e00\u6837\uff1a<\/p>\n<pre class=\"post-pre\"><code><div class=\"secondary-code-label\" title=\"Output\">\u8f93\u51fa<\/div>+---------+---------------+------+-----------+\r\n| make    | model         | year | value     |\r\n+---------+---------------+------+-----------+\r\n| Ferrari | SF90 Stradale | 2020 | 627000.00 |\r\n| Ferrari | F8 Tributo    | 2019 | 375000.00 |\r\n| Ferrari | 812 Superfast | 2017 | 335300.00 |\r\n| Ferrari | GTC4Lusso     | 2016 | 268000.00 |\r\n| Ferrari | 488 GTB       | 2015 | 254750.00 |\r\n| Porsche | 911 GT3       | 2020 | 169700.00 |\r\n| Porsche | Cayman GT4    | 2018 | 118000.00 |\r\n| Porsche | Panamera      | 2022 | 113200.00 |\r\n| Porsche | 718 Boxster   | 2017 |  48880.00 |\r\n| Porsche | Macan         | 2019 |  27400.00 |\r\n+---------+---------------+------+-----------+\r\n10 rows in set (0.00 sec)\r\n\r\nQuery OK, 0 rows affected (0.00 sec)\r\n<\/code><\/pre>\n<p>\u60a8\u73b0\u5728\u5df2\u6210\u529f\u521b\u5efa\u4e86\u4e00\u4e2a\u4e0d\u5e26\u4efb\u4f55\u53c2\u6570\u7684\u5b58\u50a8\u8fc7\u7a0b\uff0c\u8be5\u8fc7\u7a0b\u4ee5\u7279\u5b9a\u65b9\u5f0f\u8fd4\u56de <code>cars<\/code> \u8868\u4e2d\u7684\u6240\u6709\u6c7d\u8f66\u3002\u60a8\u53ef\u4ee5\u5728\u591a\u4e2a\u5e94\u7528\u7a0b\u5e8f\u4e2d\u4f7f\u7528\u8be5\u5b58\u50a8\u8fc7\u7a0b\u3002<\/p>\n<p>\u5728\u4e0b\u4e00\u8282\u4e2d\uff0c\u60a8\u5c06\u521b\u5efa\u4e00\u4e2a\u63a5\u53d7\u53c2\u6570\u7684\u5b58\u50a8\u8fc7\u7a0b\uff0c\u4ee5\u6839\u636e\u7528\u6237\u8f93\u5165\u66f4\u6539\u5b58\u50a8\u8fc7\u7a0b\u7684\u884c\u4e3a\u3002<\/p>\n<h2>\u521b\u5efa\u5e26\u6709\u8f93\u5165\u53c2\u6570\u7684\u5b58\u50a8\u8fc7\u7a0b<\/h2>\n<p>\u5728\u672c\u8282\u4e2d\uff0c\u60a8\u5c06\u5728\u5b58\u50a8\u8fc7\u7a0b\u5b9a\u4e49\u4e2d\u5305\u542b\u8f93\u5165\u53c2\u6570\uff0c\u4ee5\u5141\u8bb8\u6267\u884c\u5b58\u50a8\u8fc7\u7a0b\u7684\u7528\u6237\u5411\u5176\u4f20\u9012\u6570\u636e\u3002\u4f8b\u5982\uff0c\u7528\u6237\u53ef\u4ee5\u63d0\u4f9b\u67e5\u8be2\u8fc7\u6ee4\u5668\u3002<\/p>\n<p>\u4e4b\u524d\u521b\u5efa\u7684 <code>get_all_cars<\/code> \u5b58\u50a8\u8fc7\u7a0b\u59cb\u7ec8\u4ece <code>cars<\/code> \u8868\u4e2d\u68c0\u7d22\u6240\u6709\u6c7d\u8f66\u3002\u8ba9\u6211\u4eec\u521b\u5efa\u53e6\u4e00\u4e2a\u5b58\u50a8\u8fc7\u7a0b\u6765\u67e5\u627e\u7279\u5b9a\u5236\u9020\u5e74\u4efd\u7684\u6c7d\u8f66\u3002\u4e3a\u6b64\uff0c\u60a8\u5c06\u5728\u5b58\u50a8\u8fc7\u7a0b\u5b9a\u4e49\u4e2d\u5b9a\u4e49\u4e00\u4e2a\u547d\u540d\u53c2\u6570\u3002<\/p>\n<p>\u8fd0\u884c\u4ee5\u4e0b\u4ee3\u7801\uff1a<\/p>\n<p>\u8fd9\u662f\u6587\u7ae0\u300a\u5982\u4f55\u5728MySQL\u4e2d\u4f7f\u7528\u5b58\u50a8\u8fc7\u7a0b\u300b\u7684\u7b2c6\u90e8\u5206\uff08\u51718\u90e8\u5206\uff09\u3002<\/p>\n<pre class=\"post-pre\"><code><ol>\r\n<li data-prefix=\"mysql>\">DELIMITER \/\/<\/li>\r\n<li data-prefix=\"mysql>\">CREATE PROCEDURE <mark>get_cars_by_year<\/mark><span class=\"token punctuation\">(<\/span><\/li>\r\n<li data-prefix=\"mysql>\">    <mark>IN year_filter int<\/mark><\/li>\r\n<li data-prefix=\"mysql>\"><span class=\"token punctuation\">)<\/span><\/li>\r\n<li data-prefix=\"mysql>\">BEGIN<\/li>\r\n<li data-prefix=\"mysql>\">    SELECT * FROM cars WHERE <mark>year <span class=\"token operator\">=<\/span> year_filter<\/mark> ORDER BY make, value DESC<span class=\"token punctuation\">;<\/span><\/li>\r\n<li data-prefix=\"mysql>\">END \/\/<\/li>\r\n<li data-prefix=\"mysql>\">DELIMITER <span class=\"token punctuation\">;<\/span><\/li>\r\n<\/ol>\r\n<\/code><\/pre>\n<p>\u4e0e\u4e0a\u4e00\u8282\u7684\u5b58\u50a8\u8fc7\u7a0b\u521b\u5efa\u4ee3\u7801\u76f8\u6bd4\uff0c\u8fd9\u91cc\u6709\u51e0\u5904\u6539\u52a8\u3002<\/p>\n<p>\u9996\u5148\uff0c\u5b58\u50a8\u8fc7\u7a0b\u7684\u540d\u79f0\u662f <code>get_cars_by_year<\/code>\uff0c\u5b83\u63cf\u8ff0\u4e86\u8be5\u8fc7\u7a0b\u7684\u529f\u80fd\uff1a\u6839\u636e\u751f\u4ea7\u5e74\u4efd\u68c0\u7d22\u6c7d\u8f66\u3002<\/p>\n<p>\u4e4b\u524d\u4e3a\u7a7a\u7684\u62ec\u53f7\u73b0\u5728\u5305\u542b\u4e00\u4e2a\u53c2\u6570\u5b9a\u4e49\uff1a<code>IN year_filter int<\/code>\u3002<code>IN<\/code> \u5173\u952e\u5b57\u544a\u8bc9\u6570\u636e\u5e93\uff0c\u8be5\u53c2\u6570\u5c06\u7531\u8c03\u7528\u7528\u6237\u4f20\u9012\u5230\u5b58\u50a8\u8fc7\u7a0b\u4e2d\u3002<code>year_filter<\/code> \u662f\u53c2\u6570\u7684\u4efb\u610f\u540d\u79f0\uff0c\u60a8\u5c06\u5728\u5b58\u50a8\u8fc7\u7a0b\u4ee3\u7801\u4e2d\u4f7f\u7528\u5b83\u6765\u5f15\u7528\u8be5\u53c2\u6570\u3002\u6700\u540e\uff0c<code>int<\/code> \u662f\u6570\u636e\u7c7b\u578b\u3002\u5728\u672c\u4f8b\u4e2d\uff0c\u751f\u4ea7\u5e74\u4efd\u8868\u793a\u4e3a\u6570\u503c\u3002<\/p>\n<p>\u5728\u5b58\u50a8\u8fc7\u7a0b\u540d\u79f0\u540e\u5b9a\u4e49\u7684 <code>year_filter<\/code> \u53c2\u6570\u51fa\u73b0\u5728 <code>SELECT<\/code> \u8bed\u53e5\u7684 <code>WHERE year = year_filter<\/code> \u5b50\u53e5\u4e2d\uff0c\u7528\u4e8e\u6839\u636e\u751f\u4ea7\u5e74\u4efd\u8fc7\u6ee4 <code>cars<\/code> \u8868\u3002<\/p>\n<p>\u6570\u636e\u5e93\u5c06\u518d\u6b21\u8fd4\u56de\u6210\u529f\u6d88\u606f\uff1a<\/p>\n<pre class=\"post-pre\"><code><div class=\"secondary-code-label\" title=\"Output\">Output<\/div>Query OK, 0 rows affected (0.02 sec)\r\n<\/code><\/pre>\n<p>\u5c1d\u8bd5\u4e0d\u4f20\u9012\u4efb\u4f55\u53c2\u6570\u6765\u6267\u884c\u5b58\u50a8\u8fc7\u7a0b\uff0c\u5c31\u50cf\u60a8\u4e4b\u524d\u505a\u7684\u90a3\u6837\uff1a<\/p>\n<pre class=\"post-pre\"><code><ol>\r\n<li data-prefix=\"mysql>\">CALL <mark>get_cars_by_year<\/mark><span class=\"token punctuation\">;<\/span><\/li>\r\n<\/ol>\r\n<\/code><\/pre>\n<p>MySQL \u6570\u636e\u5e93\u5c06\u8fd4\u56de\u4e00\u4e2a\u9519\u8bef\u6d88\u606f\uff1a<\/p>\n<pre class=\"post-pre\"><code><div class=\"secondary-code-label\" title=\"Error message\">Error message<\/div>ERROR 1318 (42000): Incorrect number of arguments for PROCEDURE procedures.get_cars_by_year; expected 1, got 0\r\n<\/code><\/pre>\n<p>\u8fd9\u6b21\uff0c\u5b58\u50a8\u8fc7\u7a0b\u9700\u8981\u63d0\u4f9b\u4e00\u4e2a\u53c2\u6570\uff0c\u4f46\u6ca1\u6709\u63d0\u4f9b\u3002\u8981\u8c03\u7528\u5e26\u53c2\u6570\u7684\u5b58\u50a8\u8fc7\u7a0b\uff0c\u60a8\u53ef\u4ee5\u5728\u62ec\u53f7\u5185\u6309\u5b58\u50a8\u8fc7\u7a0b\u671f\u671b\u7684\u76f8\u540c\u987a\u5e8f\u63d0\u4f9b\u53c2\u6570\u503c\u3002\u8981\u68c0\u7d22 2017 \u5e74\u751f\u4ea7\u7684\u6c7d\u8f66\uff0c\u8bf7\u6267\u884c\uff1a<\/p>\n<pre class=\"post-pre\"><code><ol>\r\n<li data-prefix=\"mysql>\">CALL get_cars_by_year<mark><span class=\"token punctuation\">(<\/span><span class=\"token number\">2017<\/span><span class=\"token punctuation\">)<\/span><\/mark><span class=\"token punctuation\">;<\/span><\/li>\r\n<\/ol>\r\n<\/code><\/pre>\n<p>\u73b0\u5728\uff0c\u8c03\u7528\u7684\u5b58\u50a8\u8fc7\u7a0b\u5c06\u6b63\u786e\u6267\u884c\u5e76\u8fd4\u56de\u8be5\u5e74\u4efd\u7684\u6c7d\u8f66\u5217\u8868\uff1a<\/p>\n<pre class=\"post-pre\"><code><div class=\"secondary-code-label\" title=\"Output\">Output<\/div>+---------+---------------+------+-----------+\r\n| make    | model         | year | value     |\r\n+---------+---------------+------+-----------+\r\n| Ferrari | 812 Superfast | 2017 | 335300.00 |\r\n| Porsche | 718 Boxster   | 2017 |  48880.00 |\r\n+---------+---------------+------+-----------+\r\n2 rows in set (0.00 sec)\r\n\r\nQuery OK, 0 rows affected (0.00 sec)\r\n<\/code><\/pre>\n<p>\u5728\u8fd9\u4e2a\u4f8b\u5b50\u4e2d\uff0c\u60a8\u5b66\u4e60\u4e86\u5982\u4f55\u5c06\u8f93\u5165\u53c2\u6570\u4f20\u9012\u7ed9\u5b58\u50a8\u8fc7\u7a0b\uff0c\u5e76\u5728\u5b58\u50a8\u8fc7\u7a0b\u5185\u90e8\u7684\u67e5\u8be2\u4e2d\u4f7f\u7528\u5b83\u4eec\u6765\u63d0\u4f9b\u8fc7\u6ee4\u9009\u9879\u3002<\/p>\n<p>\u5728\u4e0b\u4e00\u8282\u4e2d\uff0c\u60a8\u5c06\u4f7f\u7528\u8f93\u51fa\u53c2\u6570\u6765\u521b\u5efa\u4e00\u6b21\u8fd0\u884c\u8fd4\u56de\u591a\u4e2a\u4e0d\u540c\u503c\u7684\u5b58\u50a8\u8fc7\u7a0b\u3002<\/p>\n<h2>\u521b\u5efa\u5e26\u8f93\u5165\u548c\u8f93\u51fa\u53c2\u6570\u7684\u5b58\u50a8\u8fc7\u7a0b<\/h2>\n<p>\u5728\u524d\u9762\u4e24\u4e2a\u4f8b\u5b50\u4e2d\uff0c\u60a8\u521b\u5efa\u7684\u5b58\u50a8\u8fc7\u7a0b\u90fd\u8c03\u7528\u4e86 <code>SELECT<\/code> \u8bed\u53e5\u6765\u83b7\u53d6\u7ed3\u679c\u96c6\u3002\u4f46\u5728\u67d0\u4e9b\u60c5\u51b5\u4e0b\uff0c\u60a8\u53ef\u80fd\u9700\u8981\u4e00\u4e2a\u5b58\u50a8\u8fc7\u7a0b\uff0c\u5b83\u80fd\u4e00\u6b21\u6027\u8fd4\u56de\u591a\u4e2a\u4e0d\u540c\u7684\u503c\uff0c\u800c\u4e0d\u662f\u5355\u4e2a\u67e5\u8be2\u7684\u5355\u4e2a\u7ed3\u679c\u96c6\u3002<\/p>\n<p>\u5047\u8bbe\u60a8\u60f3\u521b\u5efa\u4e00\u4e2a\u5b58\u50a8\u8fc7\u7a0b\uff0c\u5b83\u80fd\u63d0\u4f9b\u7ed9\u5b9a\u5e74\u4efd\u6c7d\u8f66\u7684\u6c47\u603b\u4fe1\u606f\uff0c\u5305\u62ec\u6536\u85cf\u4e2d\u6c7d\u8f66\u7684\u6570\u91cf\u53ca\u5176\u5e02\u573a\u4ef7\u503c\uff08\u6700\u5c0f\u503c\u3001\u6700\u5927\u503c\u548c\u5e73\u5747\u503c\uff09\u3002<\/p>\n<p>\u4e3a\u6b64\uff0c\u60a8\u53ef\u4ee5\u5728\u521b\u5efa\u65b0\u7684\u5b58\u50a8\u8fc7\u7a0b\u65f6\u4f7f\u7528 <code>OUT<\/code> \u53c2\u6570\u3002\u4e0e <code>IN<\/code> \u53c2\u6570\u7c7b\u4f3c\uff0c<code>OUT<\/code> \u53c2\u6570\u4e5f\u6709\u4e0e\u5176\u5173\u8054\u7684\u540d\u79f0\u548c\u6570\u636e\u7c7b\u578b\u3002\u7136\u800c\uff0c\u5b83\u4eec\u4e0d\u662f\u5c06\u6570\u636e\u4f20\u9012\u7ed9\u5b58\u50a8\u8fc7\u7a0b\uff0c\u800c\u662f\u53ef\u4ee5\u7531\u5b58\u50a8\u8fc7\u7a0b\u586b\u5145\u6570\u636e\uff0c\u4ee5\u5c06\u503c\u8fd4\u56de\u7ed9\u8c03\u7528\u7528\u6237\u3002<\/p>\n<p>\u521b\u5efa\u4e00\u4e2a <code>get_car_stats_by_year<\/code> \u5b58\u50a8\u8fc7\u7a0b\uff0c\u5b83\u5c06\u4f7f\u7528\u8f93\u51fa\u53c2\u6570\u8fd4\u56de\u7ed9\u5b9a\u751f\u4ea7\u5e74\u4efd\u6c7d\u8f66\u7684\u6c47\u603b\u6570\u636e\uff1a<\/p>\n<pre class=\"post-pre\"><code><ol><li data-prefix=\"mysql>\">DELIMITER \/\/\r\n<\/li><li data-prefix=\"mysql>\">CREATE PROCEDURE <mark>get_car_stats_by_year<\/mark><span class=\"token punctuation\">(\r\n<\/span><\/li><li data-prefix=\"mysql>\">    IN year_filter int,\r\n<\/li><li data-prefix=\"mysql>\">    <mark>OUT cars_number int,<\/mark>\r\n<\/li><li data-prefix=\"mysql>\">    <mark>OUT min_value decimal<span class=\"token punctuation\">(<\/span><span class=\"token number\">10<\/span>, <span class=\"token number\">2<\/span><span class=\"token punctuation\">)<\/span>,<\/mark>\r\n<\/li><li data-prefix=\"mysql>\">    <mark>OUT avg_value decimal<span class=\"token punctuation\">(<\/span><span class=\"token number\">10<\/span>, <span class=\"token number\">2<\/span><span class=\"token punctuation\">)<\/span>,<\/mark>\r\n<\/li><li data-prefix=\"mysql>\">    <mark>OUT max_value decimal<span class=\"token punctuation\">(<\/span><span class=\"token number\">10<\/span>, <span class=\"token number\">2<\/span><span class=\"token punctuation\">)<\/span><\/mark>\r\n<\/li><li data-prefix=\"mysql>\"><span class=\"token punctuation\">)<\/span>\r\n<\/li><li data-prefix=\"mysql>\">BEGIN\r\n<\/li><li data-prefix=\"mysql\">\r\n    SELECT COUNT<span class=\"token punctuation\">(<\/span>*<span class=\"token punctuation\">)<\/span>, MIN<span class=\"token punctuation\">(<\/span>value<span class=\"token punctuation\">)<\/span>, AVG<span class=\"token punctuation\">(<\/span>value<span class=\"token punctuation\">)<\/span>, MAX<span class=\"token punctuation\">(<\/span>value<span class=\"token punctuation\">)<\/span>\r\n<\/li><li data-prefix=\"mysql\">\r\n    <mark>INTO cars_number, min_value, avg_value, max_value<\/mark>\r\n<\/li><li data-prefix=\"mysql\">\r\n    FROM cars\r\n<\/li><li data-prefix=\"mysql\">\r\n    WHERE year <span class=\"token operator\">=<\/span> year_filter ORDER BY make, value DESC<span class=\"token punctuation\">;<\/span>\r\n<\/li><li data-prefix=\"mysql\">END \/\/\r\n<\/li><li data-prefix=\"mysql\">DELIMITER <span class=\"token punctuation\">;<\/span>\r\n<\/li><\/ol>\r\n<\/code><\/pre>\n<p>\u8fd9\u6b21\uff0c\u9664\u4e86\u7528\u4e8e\u6309\u751f\u4ea7\u5e74\u4efd\u8fc7\u6ee4\u6c7d\u8f66\u7684IN\u53c2\u6570<code>year_filter<\/code>\u5916\uff0c\u62ec\u53f7\u5757\u4e2d\u8fd8\u5b9a\u4e49\u4e86\u56db\u4e2aOUT\u53c2\u6570\u3002<code>cars_number<\/code>\u53c2\u6570\u7684\u6570\u636e\u7c7b\u578b\u4e3a<code>int<\/code>\uff0c\u5c06\u7528\u4e8e\u8fd4\u56de\u96c6\u5408\u4e2d\u6c7d\u8f66\u7684\u6570\u91cf\u3002<code>min_value<\/code>\u3001<code>avg_value<\/code>\u548c<code>max_value<\/code>\u53c2\u6570\u8868\u793a\u5e02\u573a\u4ef7\u503c\uff0c\u5e76\u5b9a\u4e49\u4e3a<code>decimal(10, 2)<\/code>\u7c7b\u578b\uff08\u7c7b\u4f3c\u4e8e<code>cars<\/code>\u8868\u4e2d\u7684<code>value<\/code>\u5217\uff09\u3002\u5b83\u4eec\u5c06\u7528\u4e8e\u8fd4\u56de\u96c6\u5408\u4e2d\u6700\u4fbf\u5b9c\u548c\u6700\u6602\u8d35\u7684\u6c7d\u8f66\u4fe1\u606f\uff0c\u4ee5\u53ca\u6240\u6709\u5339\u914d\u6c7d\u8f66\u7684\u5e73\u5747\u4ef7\u683c\u3002<\/p>\n<p><code>SELECT<\/code>\u8bed\u53e5\u4f7f\u7528SQL\u6570\u5b66\u51fd\u6570\u4ece<code>cars<\/code>\u8868\u4e2d\u67e5\u8be2\u56db\u4e2a\u503c\uff1a<code>COUNT<\/code>\u7528\u4e8e\u83b7\u53d6\u6c7d\u8f66\u603b\u6570\uff0c<code>MIN<\/code>\u3001<code>AVG<\/code>\u548c<code>MAX<\/code>\u7528\u4e8e\u4ece<code>value<\/code>\u5217\u4e2d\u83b7\u53d6\u6700\u5c0f\u503c\u3001\u5e73\u5747\u503c\u548c\u6700\u5927\u503c\u3002<\/p>\n<div class=\"post-conf-note\">\n<p class=\"post-note\">\n<p class=\"post-conf-desc\">\u6ce8\u610f<\/p>\n<div>\n\u8bf7\u6ce8\u610f\uff1a<br \/>\n\u8981\u4e86\u89e3\u66f4\u591a\u5173\u4e8e\u5728SQL\u4e2d\u4f7f\u7528\u6570\u5b66\u51fd\u6570\u7684\u4fe1\u606f\uff0c\u60a8\u53ef\u4ee5\u53c2\u8003\u300a\u5982\u4f55\u5728SQL\u4e2d\u4f7f\u7528\u6570\u5b66\u8868\u8fbe\u5f0f\u548c\u805a\u5408\u51fd\u6570\u300b\u6559\u7a0b\u3002<\/div>\n<\/div>\n<p>\u4e3a\u4e86\u544a\u8bc9\u6570\u636e\u5e93\u67e5\u8be2\u7ed3\u679c\u5e94\u5b58\u50a8\u5230\u5b58\u50a8\u8fc7\u7a0b\u7684\u8f93\u51fa\u53c2\u6570\u4e2d\uff0c\u8fd9\u91cc\u5f15\u5165\u4e86\u4e00\u4e2a\u65b0\u5173\u952e\u5b57<code>INTO<\/code>\u3002\u5728<code>INTO<\/code>\u5173\u952e\u5b57\u4e4b\u540e\uff0c\u5217\u51fa\u4e86\u4e0e\u68c0\u7d22\u5230\u7684\u6570\u636e\u5bf9\u5e94\u7684\u56db\u4e2a\u8fc7\u7a0b\u53c2\u6570\u7684\u540d\u79f0\u3002\u8fd9\u6837\uff0cMySQL\u4f1a\u5c06<code>COUNT(*)<\/code>\u7684\u503c\u4fdd\u5b58\u5230<code>cars_number<\/code>\u53c2\u6570\u4e2d\uff0c\u5c06<code>MIN(value)<\/code>\u7684\u7ed3\u679c\u4fdd\u5b58\u5230<code>min_value<\/code>\u53c2\u6570\u4e2d\uff0c\u4f9d\u6b64\u7c7b\u63a8\u3002<\/p>\n<p>\u6570\u636e\u5e93\u5c06\u786e\u8ba4\u5b58\u50a8\u8fc7\u7a0b\u521b\u5efa\u6210\u529f\uff1a<\/p>\n<pre class=\"post-pre\"><code><div class=\"secondary-code-label\" title=\"Output\">\u8f93\u51fa<\/div>Query OK, 0 rows affected (0.02 sec)\r\n<\/code><\/pre>\n<p>\u73b0\u5728\uff0c\u901a\u8fc7\u6267\u884c\u4ee5\u4e0b\u547d\u4ee4\u6765\u8fd0\u884c\u65b0\u521b\u5efa\u7684\u5b58\u50a8\u8fc7\u7a0b\uff1a<\/p>\n<pre class=\"post-pre\"><code><ol><li data-prefix=\"mysql>\">CALL get_car_stats_by_year<mark><span class=\"token punctuation\">(<\/span><span class=\"token number\">2017<\/span>, @number, @min, @avg, @max<span class=\"token punctuation\">)<\/span><\/mark><span class=\"token punctuation\">;<\/span>\r\n<\/li><\/ol>\r\n<\/code><\/pre>\n<p>\u8fd9\u56db\u4e2a\u65b0\u53c2\u6570\u4ee5<code>@<\/code>\u7b26\u53f7\u5f00\u5934\u3002\u5b83\u4eec\u662fMySQL\u63a7\u5236\u53f0\u4e2d\u7684\u5c40\u90e8\u53d8\u91cf\u540d\uff0c\u53ef\u7528\u4e8e\u4e34\u65f6\u5b58\u50a8\u6570\u636e\u3002\u5f53\u60a8\u5c06\u5b83\u4eec\u4f20\u9012\u7ed9\u521a\u521a\u521b\u5efa\u7684\u5b58\u50a8\u8fc7\u7a0b\u65f6\uff0c\u5b58\u50a8\u8fc7\u7a0b\u4f1a\u5c06\u503c\u63d2\u5165\u5230\u8fd9\u4e9b\u53d8\u91cf\u4e2d\u3002<\/p>\n<p>\u6570\u636e\u5e93\u5c06\u54cd\u5e94\uff1a<\/p>\n<pre class=\"post-pre\"><code><div class=\"secondary-code-label\" title=\"Output\">\u8f93\u51fa<\/div>Query OK, 1 row affected (0.00 sec)\r\n<\/code><\/pre>\n<p>\u8fd9\u4e0e\u4e4b\u524d\u7684\u884c\u4e3a\u4e0d\u540c\uff0c\u4e4b\u524d\u7684\u7ed3\u679c\u4f1a\u7acb\u5373\u663e\u793a\u5728\u5c4f\u5e55\u4e0a\u3002\u8fd9\u662f\u56e0\u4e3a\u5b58\u50a8\u8fc7\u7a0b\u7684\u7ed3\u679c\u5df2\u4fdd\u5b58\u5230\u8f93\u51fa\u53c2\u6570\u4e2d\uff0c\u800c\u4e0d\u662f\u4f5c\u4e3a\u67e5\u8be2\u7ed3\u679c\u8fd4\u56de\u3002\u8981\u8bbf\u95ee\u7ed3\u679c\uff0c\u60a8\u53ef\u4ee5\u76f4\u63a5\u5728MySQL Shell\u4e2d\u8fdb\u884c<code>SELECT<\/code>\u67e5\u8be2\uff0c\u5982\u4e0b\u6240\u793a\uff1a<\/p>\n<pre class=\"post-pre\"><code><ol><li data-prefix=\"mysql>\">SELECT <mark>@number, @min, @avg, @max<\/mark><span class=\"token punctuation\">;<\/span>\r\n<\/li><\/ol>\r\n<\/code><\/pre>\n<p>\u901a\u8fc7\u6b64\u67e5\u8be2\uff0c\u60a8\u6b63\u5728\u4ece\u5c40\u90e8\u53d8\u91cf\u4e2d\u9009\u62e9\u503c\uff0c\u800c\u4e0d\u662f\u518d\u6b21\u8c03\u7528\u5b58\u50a8\u8fc7\u7a0b\u3002\u5b58\u50a8\u8fc7\u7a0b\u5df2\u5c06\u5176\u7ed3\u679c\u4fdd\u5b58\u5728\u8fd9\u4e9b\u53d8\u91cf\u4e2d\uff0c\u6570\u636e\u5c06\u4fdd\u6301\u53ef\u7528\u72b6\u6001\uff0c\u76f4\u5230\u60a8\u65ad\u5f00\u4e0eshell\u7684\u8fde\u63a5\u3002<\/p>\n<div class=\"post-conf-note\">\n<p class=\"post-note\">\n<p class=\"post-conf-desc\">\u6ce8\u610f<\/p>\n<div>\n\u6ce8\u610f\uff1a<br \/>\n\u8981\u4e86\u89e3\u66f4\u591a\u5173\u4e8e\u5728MySQL\u4e2d\u4f7f\u7528\u7528\u6237\u5b9a\u4e49\u53d8\u91cf\u7684\u4fe1\u606f\uff0c\u8bf7\u53c2\u9605\u6587\u6863\u4e2d\u7684\u201c\u7528\u6237\u5b9a\u4e49\u53d8\u91cf\u201d\u90e8\u5206\u3002\u5728\u5e94\u7528\u7a0b\u5e8f\u5f00\u53d1\u4e2d\uff0c\u8bbf\u95ee\u4ece\u5b58\u50a8\u8fc7\u7a0b\u8fd4\u56de\u6570\u636e\u7684\u65b9\u5f0f\u5728\u4e0d\u540c\u7684\u7f16\u7a0b\u8bed\u8a00\u548c\u6846\u67b6\u4e2d\u4f1a\u6709\u6240\u4e0d\u540c\u3002\u5982\u6709\u7591\u95ee\uff0c\u8bf7\u67e5\u9605\u60a8\u9009\u62e9\u7684\u8bed\u8a00\u548c\u6846\u67b6\u7684\u6587\u6863\u3002<\/p>\n<p>\u8f93\u51fa\u5c06\u663e\u793a\u67e5\u8be2\u53d8\u91cf\u7684\u503c\uff1a<\/p>\n<pre class=\"post-pre\"><code><div class=\"secondary-code-label\" title=\"Output\">\u8f93\u51fa<\/div>+---------+----------+-----------+-----------+\r\n| @number | @min     | @avg      | @max      |\r\n+---------+----------+-----------+-----------+\r\n|       2 | 48880.00 | 192090.00 | 335300.00 |\r\n+---------+----------+-----------+-----------+\r\n1 row in set (0.00 sec)\r\n<\/code><\/pre>\n<p>\u8fd9\u4e9b\u503c\u5bf9\u5e94\u4e8e2017\u5e74\u751f\u4ea7\u7684\u6c7d\u8f66\u6570\u91cf\uff0c\u4ee5\u53ca\u8be5\u5e74\u4efd\u751f\u4ea7\u6c7d\u8f66\u7684\u6700\u5c0f\u3001\u5e73\u5747\u548c\u6700\u5927\u5e02\u573a\u4ef7\u503c\u3002<\/p>\n<p>\u5728\u6b64\u793a\u4f8b\u4e2d\uff0c\u60a8\u5b66\u4e60\u4e86\u5982\u4f55\u4f7f\u7528\u8f93\u51fa\u53c2\u6570\u4ece\u5b58\u50a8\u8fc7\u7a0b\u4e2d\u8fd4\u56de\u591a\u4e2a\u4e0d\u540c\u7684\u503c\u4ee5\u4f9b\u540e\u7eed\u4f7f\u7528\u3002\u5728\u4e0b\u4e00\u8282\u4e2d\uff0c\u60a8\u5c06\u5b66\u4e60\u5982\u4f55\u5220\u9664\u5df2\u521b\u5efa\u7684\u5b58\u50a8\u8fc7\u7a0b\u3002<\/p>\n<h2>\u5220\u9664\u5b58\u50a8\u8fc7\u7a0b<\/h2>\n<p>\u5728\u672c\u8282\u4e2d\uff0c\u60a8\u5c06\u5220\u9664\u6570\u636e\u5e93\u4e2d\u5b58\u5728\u7684\u5b58\u50a8\u8fc7\u7a0b\u3002<\/p>\n<p>\u6709\u65f6\uff0c\u60a8\u521b\u5efa\u7684\u5b58\u50a8\u8fc7\u7a0b\u53ef\u80fd\u4e0d\u518d\u9700\u8981\u3002\u5728\u5176\u4ed6\u60c5\u51b5\u4e0b\uff0c\u60a8\u53ef\u80fd\u5e0c\u671b\u66f4\u6539\u5b58\u50a8\u8fc7\u7a0b\u7684\u5de5\u4f5c\u65b9\u5f0f\u3002MySQL\u4e0d\u5141\u8bb8\u5728\u521b\u5efa\u540e\u66f4\u6539\u5b58\u50a8\u8fc7\u7a0b\u5b9a\u4e49\uff0c\u56e0\u6b64\u552f\u4e00\u7684\u65b9\u6cd5\u662f\u5148\u5220\u9664\u5b58\u50a8\u8fc7\u7a0b\uff0c\u7136\u540e\u4f7f\u7528\u6240\u9700\u7684\u66f4\u6539\u91cd\u65b0\u521b\u5efa\u5b83\u3002<\/p>\n<p>\u8ba9\u6211\u4eec\u5220\u9664\u6700\u540e\u4e00\u4e2a\u5b58\u50a8\u8fc7\u7a0b\uff0c<code>get_car_stats_by_year<\/code>\u3002\u4e3a\u6b64\uff0c\u60a8\u53ef\u4ee5\u4f7f\u7528<code>DROP PROCEDURE<\/code>\u8bed\u53e5\uff1a<\/p>\n<pre class=\"post-pre\"><code><ol><li data-prefix=\"mysql>\">DROP PROCEDURE <mark>get_car_stats_by_year<\/mark><span class=\"token punctuation\">;<\/span>\r\n<\/li><\/ol>\r\n<\/code><\/pre>\n<p>\u6570\u636e\u5e93\u5c06\u901a\u8fc7\u6210\u529f\u6d88\u606f\u786e\u8ba4\u5b58\u50a8\u8fc7\u7a0b\u5220\u9664\u6210\u529f\uff1a<\/p>\n<pre class=\"post-pre\"><code><div class=\"secondary-code-label\" title=\"Output\">\u8f93\u51fa<\/div>Query OK, 0 rows affected (0.02 sec)\r\n<\/code><\/pre>\n<p>\u60a8\u53ef\u4ee5\u901a\u8fc7\u5c1d\u8bd5\u8c03\u7528\u5b83\u6765\u9a8c\u8bc1\u5b58\u50a8\u8fc7\u7a0b\u662f\u5426\u5df2\u5220\u9664\u3002\u6267\u884c\uff1a<\/p>\n<pre class=\"post-pre\"><code><ol><li data-prefix=\"mysql>\">CALL get_car_stats_by_year<span class=\"token punctuation\">(<\/span><span class=\"token number\">2017<\/span>, @number, @min, @avg, @max<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span>\r\n<\/li><\/ol>\r\n<\/code><\/pre>\n<p>\u8fd9\u6b21\uff0c\u60a8\u5c06\u770b\u5230\u4e00\u6761\u9519\u8bef\u6d88\u606f\uff0c\u6307\u51fa\u6570\u636e\u5e93\u4e2d\u4e0d\u5b58\u5728\u8be5\u5b58\u50a8\u8fc7\u7a0b\uff1a<\/p>\n<pre class=\"post-pre\"><code><div class=\"secondary-code-label\" title=\"Error message\">\u9519\u8bef\u6d88\u606f<\/div>ERROR 1305 (42000): PROCEDURE procedures.get_car_stats_by_year does not exist\r\n<\/code><\/pre>\n<p>\u5728\u672c\u8282\u4e2d\uff0c\u60a8\u5b66\u4e60\u4e86\u5982\u4f55\u5220\u9664\u6570\u636e\u5e93\u4e2d\u73b0\u6709\u7684\u5b58\u50a8\u8fc7\u7a0b\u3002<\/p>\n<h2>\u603b\u7ed3<\/h2>\n<p>\u901a\u8fc7\u672c\u6307\u5357\uff0c\u60a8\u4e86\u89e3\u4e86\u4ec0\u4e48\u662f\u5b58\u50a8\u8fc7\u7a0b\u4ee5\u53ca\u5982\u4f55\u5728MySQL\u4e2d\u4f7f\u7528\u5b83\u4eec\uff0c\u5c06\u53ef\u91cd\u7528\u8bed\u53e5\u4fdd\u5b58\u5230\u547d\u540d\u8fc7\u7a0b\u4e2d\u5e76\u7a0d\u540e\u6267\u884c\u3002\u60a8\u521b\u5efa\u4e86\u4e0d\u5e26\u53c2\u6570\u7684\u5b58\u50a8\u8fc7\u7a0b\u4ee5\u53ca\u4f7f\u7528\u8f93\u5165\u548c\u8f93\u51fa\u53c2\u6570\u4f7f\u5176\u66f4\u7075\u6d3b\u7684\u5b58\u50a8\u8fc7\u7a0b\u3002<\/p>\n<p>\u60a8\u53ef\u4ee5\u4f7f\u7528\u5b58\u50a8\u8fc7\u7a0b\u521b\u5efa\u53ef\u91cd\u7528\u4f8b\u7a0b\uff0c\u7edf\u4e00\u8de8\u591a\u4e2a\u5e94\u7528\u7a0b\u5e8f\u8bbf\u95ee\u6570\u636e\u7684\u65b9\u6cd5\uff0c\u5e76\u5b9e\u73b0\u8d85\u51fa\u5355\u4e2aSQL\u67e5\u8be2\u6240\u80fd\u63d0\u4f9b\u7684\u590d\u6742\u884c\u4e3a\u3002\u672c\u6559\u7a0b\u4ec5\u6db5\u76d6\u4e86\u4f7f\u7528\u5b58\u50a8\u8fc7\u7a0b\u7684\u57fa\u7840\u77e5\u8bc6\u3002\u8981\u4e86\u89e3\u66f4\u591a\u4fe1\u606f\uff0c\u8bf7\u53c2\u9605MySQL\u5173\u4e8e\u5b58\u50a8\u8fc7\u7a0b\u7684\u6587\u6863\u3002<\/p>\n<p>\u5982\u679c\u60a8\u60f3\u4e86\u89e3\u66f4\u591a\u5173\u4e8eSQL\u8bed\u8a00\u53ca\u5176\u76f8\u5173\u6982\u5ff5\u7684\u77e5\u8bc6\uff0c\u6211\u4eec\u9f13\u52b1\u60a8\u67e5\u9605\u201c\u5982\u4f55\u4f7f\u7528SQL\u201d\u7cfb\u5217\u4e2d\u7684\u5176\u4ed6\u6307\u5357\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u5f15\u8a00 \u901a\u5e38\u60c5\u51b5\u4e0b\uff0c\u5728\u5904\u7406\u5173\u7cfb\u578b\u6570\u636e\u5e93\u65f6\uff0c\u4f60\u4f1a\u5728\u5e94\u7528\u7a0b\u5e8f\u4ee3\u7801\u4e2d\u76f4\u63a5\u53d1\u51fa\u5404\u79cd\u7ed3\u6784\u5316\u67e5\u8be2\u8bed\u8a00\uff08SQL\uff09\u67e5\u8be2\u6765\u68c0\u7d22\u6216\u64cd [&hellip;]<\/p>\n","protected":false},"author":9,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[303,320,318,319,321],"class_list":["post-36","post","type-post","status-publish","format-standard","hentry","category-uncategorized","tag-mysql","tag-sql","tag-318","tag-319","tag-321"],"yoast_head":"<!-- This site is optimized with the Yoast SEO Premium plugin v21.5 (Yoast SEO v21.5) - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>MySQL\u5b58\u50a8\u8fc7\u7a0b\u4ece\u5165\u95e8\u5230\u7cbe\u901a\uff1a\u63d0\u5347\u6570\u636e\u5e93\u6548\u7387\u4e0e\u5b89\u5168\u6027 - 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content=\"MySQL\u5b58\u50a8\u8fc7\u7a0b\u4ece\u5165\u95e8\u5230\u7cbe\u901a\uff1a\u63d0\u5347\u6570\u636e\u5e93\u6548\u7387\u4e0e\u5b89\u5168\u6027\" \/>\n<meta property=\"og:description\" content=\"\u6df1\u5165\u5b66\u4e60MySQL\u5b58\u50a8\u8fc7\u7a0b\u7684\u521b\u5efa\u3001\u8c03\u7528\u3001\u7ba1\u7406\u4e0e\u4f18\u5316\u6280\u5de7\uff0c\u52a9\u60a8\u63d0\u5347\u6570\u636e\u5e93\u64cd\u4f5c\u6548\u7387\u3001\u4fdd\u969c\u6570\u636e\u5b89\u5168\uff0c\u6210\u4e3a\u6570\u636e\u5e93\u7ba1\u7406\u4e13\u5bb6\u3002\u5305\u542b\u5b9e\u7528\u6848\u4f8b\u4e0e\u5e38\u89c1\u95ee\u9898\u89e3\u7b54\u3002\" \/>\n<meta property=\"og:url\" content=\"https:\/\/www.silicloud.com\/zh\/blog\/\u5982\u4f55\u5728mysql\u4e2d\u4f7f\u7528\u5b58\u50a8\u8fc7\u7a0b\/\" \/>\n<meta property=\"og:site_name\" content=\"Blog - Silicon Cloud\" \/>\n<meta property=\"article:published_time\" content=\"2022-11-22T11:56:30+00:00\" \/>\n<meta property=\"article:modified_time\" content=\"2025-07-31T13:47:53+00:00\" 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