{"id":22,"date":"2023-11-26T00:20:57","date_gmt":"2023-02-21T21:41:17","guid":{"rendered":"https:\/\/www.silicloud.com\/zh\/blog\/index.php\/2023\/11\/30\/%e5%a6%82%e4%bd%95%e5%9c%a8sql%e4%b8%ad%e4%bd%bf%e7%94%a8%e4%b8%bb%e9%94%ae%e3%80%82\/"},"modified":"2025-07-31T20:59:26","modified_gmt":"2025-07-31T12:59:26","slug":"%e5%a6%82%e4%bd%95%e5%9c%a8sql%e4%b8%ad%e4%bd%bf%e7%94%a8%e4%b8%bb%e9%94%ae%e3%80%82","status":"publish","type":"post","link":"https:\/\/www.silicloud.com\/zh\/blog\/%e5%a6%82%e4%bd%95%e5%9c%a8sql%e4%b8%ad%e4%bd%bf%e7%94%a8%e4%b8%bb%e9%94%ae%e3%80%82\/","title":{"rendered":"SQL\u4e3b\u952e\u8be6\u89e3\uff1a\u521b\u5efa\u3001\u4f7f\u7528\u4e0e\u7ba1\u7406\u7ec8\u6781\u6307\u5357"},"content":{"rendered":"<h3>\u5f15\u8a00<\/h3>\n<p>\u5173\u7cfb\u578b\u6570\u636e\u5e93\u7684\u4e00\u4e2a\u91cd\u8981\u7279\u6027\u662f\u80fd\u591f\u5c06\u6570\u636e\u5851\u9020\u6210\u4e00\u4e2a\u660e\u786e\u5b9a\u4e49\u7684\u7ed3\u6784\u3002\u8fd9\u79cd\u7ed3\u6784\u901a\u8fc7\u4f7f\u7528\u5177\u6709\u56fa\u5b9a\u5217\u3001\u4e25\u683c\u5b9a\u4e49\u7684\u6570\u636e\u7c7b\u578b\u4ee5\u53ca\u786e\u4fdd\u6bcf\u4e00\u884c\u5177\u6709\u76f8\u540c\u5f62\u72b6\u7684\u8868\u6765\u5b9e\u73b0\u3002\u5f53\u6570\u636e\u4ee5\u884c\u7684\u5f62\u5f0f\u5b58\u50a8\u5728\u8868\u4e2d\u65f6\uff0c\u80fd\u591f\u65e0\u6b67\u4e49\u5730\u627e\u5230\u5e76\u5f15\u7528\u5b83\u4eec\u540c\u6837\u91cd\u8981\u3002\u5728\u7ed3\u6784\u5316\u67e5\u8be2\u8bed\u8a00\uff08SQL\uff09\u4e2d\uff0c\u8fd9\u53ef\u4ee5\u901a\u8fc7\u4e3b\u952e\u6765\u5b9e\u73b0\uff0c\u4e3b\u952e\u4f5c\u4e3a\u5173\u7cfb\u6570\u636e\u5e93\u4e2d\u8868\u4e2d\u5404\u4e2a\u884c\u7684\u552f\u4e00\u6807\u8bc6\u7b26\u3002<\/p>\n<p>\u5728\u672c\u6559\u7a0b\u4e2d\uff0c\u60a8\u5c06\u5b66\u4e60\u5173\u4e8e\u4e3b\u952e\u7684\u77e5\u8bc6\uff0c\u5e76\u4f7f\u7528\u51e0\u79cd\u4e0d\u540c\u7c7b\u578b\u7684\u4e3b\u952e\u6765\u8bc6\u522b\u6570\u636e\u5e93\u8868\u4e2d\u7684\u552f\u4e00\u884c\u3002\u901a\u8fc7\u4f7f\u7528\u4e00\u4e9b\u793a\u4f8b\u6570\u636e\u96c6\uff0c\u60a8\u5c06\u5728\u5355\u4e2a\u5217\u548c\u591a\u4e2a\u5217\u4e0a\u521b\u5efa\u4e3b\u952e\uff0c\u5e76\u81ea\u52a8\u9012\u589e\u987a\u5e8f\u952e\u3002<\/p>\n<h2>\u5148\u51b3\u6761\u4ef6<\/h2>\n<p>\u4e3a\u4e86\u6309\u7167\u672c\u6307\u5357\u64cd\u4f5c\uff0c\u4f60\u9700\u8981\u4e00\u53f0\u5b89\u88c5\u4e86\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\u6307\u793a\u548c\u793a\u4f8b\u662f\u5728\u4ee5\u4e0b\u73af\u5883\u4e0b\u9a8c\u8bc1\u7684\uff1a<\/p>\n<ul class=\"post-ul\">\n<li>\u8fd0\u884c Ubuntu 20.04 \u7684\u670d\u52a1\u5668\uff0c\u62e5\u6709\u5177\u6709\u7ba1\u7406\u6743\u9650\u7684\u975e\u6839\u7528\u6237\uff0c\u5e76\u914d\u7f6e\u4e86 UFW \u9632\u706b\u5899\uff0c\u5982\u6211\u4eec\u7684 <a href=\"#\">Ubuntu 20.04 \u521d\u59cb\u670d\u52a1\u5668\u8bbe\u7f6e\u6307\u5357<\/a> \u4e2d\u6240\u8ff0\u3002<\/li>\n<li>\u5728\u670d\u52a1\u5668\u4e0a\u5b89\u88c5\u5e76\u5b89\u5168\u914d\u7f6e\u4e86 MySQL\uff0c\u5982 <a href=\"#\">\u5982\u4f55\u5728 Ubuntu 20.04 \u4e0a\u5b89\u88c5 MySQL<\/a> \u4e2d\u6240\u8ff0\u3002\u672c\u6307\u5357\u5df2\u901a\u8fc7\u975e\u6839 MySQL \u7528\u6237\u9a8c\u8bc1\uff0c\u8be5\u7528\u6237\u662f\u6309\u7167\u7b2c 3 \u6b65\u4e2d\u63cf\u8ff0\u7684\u8fc7\u7a0b\u521b\u5efa\u7684\u3002<\/li>\n<li>\u57fa\u672c\u719f\u6089\u6267\u884c SELECT \u67e5\u8be2\u4ee5\u4ece\u6570\u636e\u5e93\u4e2d\u68c0\u7d22\u6570\u636e\uff0c\u5982\u6211\u4eec\u7684 <a href=\"#\">\u5982\u4f55\u5728 SQL \u4e2d\u4ece\u8868\u4e2d\u9009\u62e9\u884c<\/a> \u6307\u5357\u4e2d\u6240\u8ff0\u3002<\/li>\n<\/ul>\n<div class=\"post-conf-note\">\n<p class=\"post-conf-desc\"><strong>\u6ce8\u610f\uff1a<\/strong>\u8bb8\u591a RDBMS \u4f7f\u7528\u81ea\u5df1\u72ec\u7279\u7684 SQL \u5b9e\u73b0\u3002\u867d\u7136\u672c\u6559\u7a0b\u4e2d\u4ecb\u7ecd\u7684\u547d\u4ee4\u5728\u5927\u591a\u6570 RDBMS \u4e0a\u90fd\u53ef\u8fd0\u884c\uff0c\u800c\u4e14\u4e3b\u952e\u662f SQL \u6807\u51c6\u7684\u4e00\u90e8\u5206\uff0c\u4f46\u67d0\u4e9b\u529f\u80fd\u662f\u7279\u5b9a\u4e8e\u6570\u636e\u5e93\u7684\uff0c\u56e0\u6b64\u5728\u9664 MySQL \u5916\u7684\u5176\u4ed6\u7cfb\u7edf\u4e0a\u6d4b\u8bd5\u65f6\uff0c\u786e\u5207\u7684\u8bed\u6cd5\u6216\u8f93\u51fa\u53ef\u80fd\u4f1a\u6709\u6240\u4e0d\u540c\u3002\u60a8\u8fd8\u9700\u8981\u4e00\u4e2a\u7a7a\u7684\u6570\u636e\u5e93\uff0c\u60a8\u53ef\u4ee5\u5728\u5176\u4e2d\u521b\u5efa\u8868\u683c\u6765\u5c55\u793a\u4e3b\u952e\u7684\u4f7f\u7528\u3002\u6211\u4eec\u9f13\u52b1\u60a8\u9605\u8bfb\u300a\u8fde\u63a5\u5230 MySQL \u548c\u8bbe\u7f6e\u793a\u4f8b\u6570\u636e\u5e93\u300b\u90e8\u5206\uff0c\u4e86\u89e3\u5982\u4f55\u8fde\u63a5\u5230 MySQL \u670d\u52a1\u5668\u5e76\u521b\u5efa\u6b64\u6307\u5357\u4e2d\u793a\u4f8b\u4e2d\u4f7f\u7528\u7684\u6d4b\u8bd5\u6570\u636e\u5e93\u7684\u8be6\u7ec6\u4fe1\u606f\u3002<\/p>\n<\/div>\n<h2>\u8fde\u63a5\u5230 MySQL \u5e76\u8bbe\u7f6e\u4e00\u4e2a\u6837\u672c\u6570\u636e\u5e93<\/h2>\n<p>\u5728\u672c\u8282\u4e2d\uff0c\u60a8\u5c06\u8fde\u63a5\u5230\u4e00\u4e2a MySQL \u670d\u52a1\u5668\u5e76\u521b\u5efa\u4e00\u4e2a\u793a\u4f8b\u6570\u636e\u5e93\uff0c\u4ee5\u4fbf\u60a8\u53ef\u4ee5\u6309\u7167\u672c\u6307\u5357\u4e2d\u7684\u793a\u4f8b\u8fdb\u884c\u64cd\u4f5c\u3002<\/p>\n<p>\u5982\u679c\u4f60\u7684 SQL \u6570\u636e\u5e93\u7cfb\u7edf\u5728\u8fdc\u7a0b\u670d\u52a1\u5668\u4e0a\u8fd0\u884c\uff0c\u4ece\u672c\u5730\u673a\u5668\u4e0a\u7528 SSH \u767b\u5f55\u5230\u4f60\u7684\u670d\u52a1\u5668\u3002<\/p>\n<pre class=\"post-pre\"><code><span class=\"token function\">ssh<\/span> <mark>sammy<\/mark>@<mark>your_server_ip<\/mark><\/code><\/pre>\n<p>\u7136\u540e\u6253\u5f00 MySQL \u670d\u52a1\u5668\u63d0\u793a\u7b26\uff0c\u5c06 <code>sammy<\/code> \u66ff\u6362\u4e3a\u60a8\u7684 MySQL \u7528\u6237\u5e10\u6237\u7684\u540d\u79f0\u3002<\/p>\n<pre class=\"post-pre\"><code>mysql <span class=\"token parameter variable\">-u<\/span> <mark>sammy<\/mark> <span class=\"token parameter variable\">-p<\/span><\/code><\/pre>\n<p>\u521b\u5efa\u4e00\u4e2a\u540d\u4e3a <code>primary_keys<\/code> \u7684\u6570\u636e\u5e93\u3002<\/p>\n<pre class=\"post-pre\"><code>CREATE DATABASE <mark>primary_keys<\/mark><span class=\"token punctuation\">;<\/span><\/code><\/pre>\n<p>\u5982\u679c\u6570\u636e\u5e93\u6210\u529f\u521b\u5efa\uff0c\u60a8\u5c06\u6536\u5230\u5982\u4e0b\u8f93\u51fa\uff1a<\/p>\n<div class=\"secondary-code-label\" title=\"Output\">Output<\/div>\n<pre class=\"post-pre\"><code>Query OK, 1 row affected (0.01 sec)<\/code><\/pre>\n<p>\u8981\u9009\u62e9 <code>primary_keys<\/code> \u6570\u636e\u5e93\uff0c\u8bf7\u6267\u884c\u4ee5\u4e0b USE \u8bed\u53e5:<\/p>\n<pre class=\"post-pre\"><code>USE <mark>primary_keys<\/mark><span class=\"token punctuation\">;<\/span><\/code><\/pre>\n<p>\u60a8\u5c06\u6536\u5230\u4ee5\u4e0b\u8f93\u51fa\uff1a<\/p>\n<div class=\"secondary-code-label\" title=\"Output\">Output<\/div>\n<pre class=\"post-pre\"><code>Database changed<\/code><\/pre>\n<p>\u9009\u62e9\u6570\u636e\u5e93\u540e\uff0c\u60a8\u53ef\u4ee5\u5728\u5176\u4e2d\u521b\u5efa\u793a\u4f8b\u8868\u683c\u3002\u73b0\u5728\uff0c\u60a8\u5df2\u51c6\u5907\u597d\u6309\u7167\u6307\u5357\u7684\u5269\u4f59\u90e8\u5206\u5f00\u59cb\u4f7f\u7528 MySQL \u4e2d\u7684\u4e3b\u952e\u3002<\/p>\n<h2>\u4e3b\u952e\u4ecb\u7ecd<\/h2>\n<p>\u5173\u7cfb\u6570\u636e\u5e93\u4e2d\u7684\u6570\u636e\u4ee5\u7279\u5b9a\u7684\u3001\u5177\u6709\u7edf\u4e00\u7ed3\u6784\u7684\u884c\u5f62\u5f0f\u5b58\u50a8\u5728\u8868\u4e2d\u3002\u8868\u5b9a\u4e49\u63cf\u8ff0\u4e86\u6709\u54ea\u4e9b\u5217\u4ee5\u53ca\u53ef\u4fdd\u5b58\u5728\u5404\u4e2a\u5217\u4e2d\u7684\u6570\u636e\u7c7b\u578b\u3002\u4ec5\u51ed\u8fd9\u4e9b\u4fe1\u606f\uff0c\u5c31\u8db3\u4ee5\u5c06\u6570\u636e\u5b58\u50a8\u5728\u6570\u636e\u5e93\u4e2d\uff0c\u5e76\u80fd\u591f\u5728\u4ee5\u540e\u901a\u8fc7\u4f7f\u7528 WHERE \u5b50\u53e5\u548c\u4e0d\u540c\u7684\u7b5b\u9009\u6761\u4ef6\u6765\u627e\u5230\u5b83\u3002\u7136\u800c\uff0c\u8fd9\u79cd\u7ed3\u6784\u4e0d\u80fd\u4fdd\u8bc1\u80fd\u591f\u627e\u5230\u4efb\u4f55\u5355\u72ec\u7684\u884c\u5e76\u6392\u9664\u4e8c\u4e49\u6027\u3002<\/p>\n<p>\u60f3\u8c61\u4e00\u4e0b\uff0c\u6709\u4e00\u4e2a\u6570\u636e\u5e93\u8bb0\u5f55\u4e86\u6240\u6709\u88ab\u5141\u8bb8\u5728\u516c\u5171\u9053\u8def\u4e0a\u884c\u9a76\u7684\u6ce8\u518c\u8f66\u8f86\u3002\u8be5\u6570\u636e\u5e93\u5c06\u5305\u542b\u6c7d\u8f66\u54c1\u724c\u3001\u578b\u53f7\u3001\u5236\u9020\u5e74\u4efd\u548c\u8f66\u6f06\u989c\u8272\u7b49\u4fe1\u606f\u3002\u4f46\u662f\uff0c\u5982\u679c\u4f60\u6b63\u5728\u5bfb\u627e\u4e00\u8f86 2007 \u5e74\u5236\u9020\u7684\u7ea2\u8272\u96ea\u4f5b\u5170 Camaro\uff0c\u53ef\u80fd\u4f1a\u627e\u5230\u591a\u8f86\u7b26\u5408\u6761\u4ef6\u7684\u8f66\u8f86\u3002\u6bd5\u7adf\uff0c\u6c7d\u8f66\u5236\u9020\u5546\u4f1a\u5411\u591a\u4e2a\u5ba2\u6237\u9500\u552e\u7c7b\u4f3c\u7684\u8f66\u578b\u3002\u8fd9\u5c31\u662f\u4e3a\u4ec0\u4e48\u6ce8\u518c\u8f66\u8f86\u90fd\u6709\u72ec\u4e00\u65e0\u4e8c\u7684\u8f66\u724c\u53f7\u7801\u6765\u6807\u8bc6\u6bcf\u8f86\u8f66\u3002\u5982\u679c\u4f60\u67e5\u8be2\u7684\u8f66\u8f86\u662f OFP857\uff0c\u4f60\u53ef\u4ee5\u786e\u5b9a\u8fd9\u4e2a\u6761\u4ef6\u53ea\u4f1a\u627e\u5230\u4e00\u8f86\u8f66\u3002\u8fd9\u662f\u56e0\u4e3a\uff0c\u6309\u7167\u6cd5\u5f8b\u89c4\u5b9a\uff0c\u8f66\u724c\u53f7\u7801\u53ef\u4ee5\u552f\u4e00\u5730\u6807\u8bc6\u6ce8\u518c\u8f66\u8f86\u3002\u5728\u5173\u7cfb\u578b\u6570\u636e\u5e93\u4e2d\uff0c\u8fd9\u6837\u7684\u6570\u636e\u88ab\u79f0\u4e3a\u4e3b\u952e\u3002<\/p>\n<p>\u4e3b\u952e\u662f\u5728\u6570\u636e\u5e93\u8868\u4e2d\u627e\u5230\u7684\u5355\u4e2a\u5217\u6216\u4e00\u7ec4\u5217\u4e2d\u7684\u552f\u4e00\u6807\u8bc6\u7b26\uff0c\u80fd\u591f\u660e\u786e\u5730\u8bc6\u522b\u6bcf\u4e00\u884c\u3002\u51e0\u4e2a\u89c4\u5219\u53cd\u6620\u4e86\u4e3b\u952e\u7684\u6280\u672f\u5c5e\u6027\u3002<\/p>\n<ul class=\"post-ul\">\n<li>\u4e3b\u952e\u5fc5\u987b\u4f7f\u7528\u552f\u4e00\u503c\u3002\u5982\u679c\u4e3b\u952e\u7531\u591a\u4e2a\u5217\u7ec4\u6210\uff0c\u8fd9\u4e9b\u5217\u4e2d\u503c\u7684\u7ec4\u5408\u5728\u6574\u4e2a\u8868\u4e2d\u5fc5\u987b\u662f\u552f\u4e00\u7684\u3002\u7531\u4e8e\u952e\u65e8\u5728\u552f\u4e00\u6807\u8bc6\u6bcf\u4e00\u884c\uff0c\u56e0\u6b64\u5b83\u4e0d\u80fd\u51fa\u73b0\u591a\u6b21\u3002<\/li>\n<li>\u4e3b\u952e\u4e0d\u80fd\u5305\u542b NULL \u503c\u3002<\/li>\n<li>\u6bcf\u4e2a\u6570\u636e\u5e93\u8868\u53ea\u80fd\u4f7f\u7528\u4e00\u4e2a\u4e3b\u952e\u3002<\/li>\n<\/ul>\n<p>\u5982\u679c\u5728\u8868\u4e0a\u5b9a\u4e49\u4e86\u4e3b\u952e\uff0c\u6570\u636e\u5e93\u5f15\u64ce\u5c06\u5f3a\u5236\u6267\u884c\u8fd9\u4e9b\u89c4\u5219\uff0c\u56e0\u6b64\u60a8\u53ef\u4ee5\u4f9d\u8d56\u8fd9\u4e9b\u5c5e\u6027\u662f\u771f\u5b9e\u7684\u3002<\/p>\n<p>\u9664\u4e86\u8fd9\u4e9b\u6280\u672f\u5c5e\u6027\u4e4b\u5916\uff0c\u60a8\u8fd8\u5fc5\u987b\u8003\u8651\u6570\u636e\u672c\u8eab\u7684\u5185\u5bb9\uff0c\u4ee5\u51b3\u5b9a\u54ea\u79cd\u6570\u636e\u9002\u5408\u6210\u4e3a\u4e3b\u952e\u3002\u81ea\u7136\u952e\u662f\u5df2\u7ecf\u5b58\u5728\u4e8e\u6570\u636e\u96c6\u4e2d\u7684\u6807\u8bc6\u7b26\uff0c\u800c\u4ee3\u7406\u952e\u662f\u4eba\u4e3a\u751f\u6210\u7684\u6807\u8bc6\u7b26\u3002<\/p>\n<p>\u6709\u4e9b\u6570\u636e\u7ed3\u6784\u5177\u6709\u5728\u6570\u636e\u96c6\u4e2d\u81ea\u7136\u53d1\u751f\u7684\u4e3b\u952e\uff0c\u4f8b\u5982\u5728\u6c7d\u8f66\u6570\u636e\u5e93\u4e2d\u7684\u8f66\u724c\u53f7\u7801\u6216\u7f8e\u56fd\u516c\u6c11\u76ee\u5f55\u4e2d\u7684\u793e\u4f1a\u5b89\u5168\u53f7\u7801\u3002\u6709\u65f6\u8fd9\u4e9b\u6807\u8bc6\u7b26\u4e0d\u662f\u5355\u4e2a\u503c\uff0c\u800c\u662f\u4e00\u5bf9\u6216\u51e0\u4e2a\u503c\u7684\u7ec4\u5408\u3002\u4f8b\u5982\uff0c\u5728\u672c\u5730\u7684\u623f\u5c4b\u76ee\u5f55\u4e2d\uff0c\u4ec5\u4f7f\u7528\u8857\u9053\u540d\u79f0\u6216\u8857\u9053\u53f7\u7801\u65e0\u6cd5\u552f\u4e00\u6807\u8bc6\u4e00\u680b\u623f\u5c4b\u3002\u540c\u4e00\u6761\u8857\u4e0a\u53ef\u80fd\u6709\u591a\u680b\u623f\u5c4b\uff0c\u540c\u4e00\u4e2a\u53f7\u7801\u53ef\u80fd\u51fa\u73b0\u5728\u591a\u6761\u8857\u4e0a\u3002\u4f46\u662f\u4e00\u5bf9\u8857\u9053\u540d\u79f0\u548c\u53f7\u7801\u53ef\u4ee5\u88ab\u8ba4\u4e3a\u662f\u4e00\u4e2a\u552f\u4e00\u7684\u623f\u5c4b\u6807\u8bc6\u7b26\u3002\u8fd9\u79cd\u81ea\u7136\u53d1\u751f\u7684\u6807\u8bc6\u7b26\u88ab\u79f0\u4e3a\u81ea\u7136\u952e\u3002<\/p>\n<p>\u7136\u800c\uff0c\u901a\u5e38\u6570\u636e\u4e0d\u80fd\u4ec5\u901a\u8fc7\u5355\u4e2a\u5217\u6216\u5c0f\u7684\u5217\u5b50\u96c6\u7684\u503c\u6765\u552f\u4e00\u63cf\u8ff0\u3002\u8fd9\u65f6\uff0c\u4f1a\u521b\u5efa\u4eba\u5de5\u7684\u4e3b\u952e\uff0c\u4f8b\u5982\u4f7f\u7528\u6570\u5b57\u5e8f\u5217\u6216\u968f\u673a\u751f\u6210\u7684\u6807\u8bc6\u7b26\uff08\u5982 UUID\uff09\u3002\u8fd9\u6837\u7684\u952e\u88ab\u79f0\u4e3a\u66ff\u4ee3\u952e\u3002<\/p>\n<p>\u5728\u63a5\u4e0b\u6765\u7684\u90e8\u5206\u4e2d\uff0c\u60a8\u5c06\u6839\u636e\u5355\u4e2a\u5217\u6216\u591a\u4e2a\u5217\u521b\u5efa\u81ea\u7136\u952e\uff0c\u5e76\u5728\u81ea\u7136\u952e\u4e0d\u53ef\u7528\u7684\u8868\u4e0a\u751f\u6210\u4ee3\u7406\u952e\u3002<\/p>\n<h2>\u5728\u5355\u4e2a\u5217\u4e0a\u521b\u5efa\u4e3b\u952e<\/h2>\n<p>\u5728\u8bb8\u591a\u60c5\u51b5\u4e0b\uff0c\u6570\u636e\u96c6\u81ea\u7136\u5730\u5305\u542b\u4e00\u4e2a\u53ef\u7528\u4e8e\u552f\u4e00\u6807\u8bc6\u8868\u4e2d\u884c\u7684\u5355\u5217\u3002\u5728\u8fd9\u4e9b\u60c5\u51b5\u4e0b\uff0c\u60a8\u53ef\u4ee5\u521b\u5efa\u4e00\u4e2a\u81ea\u7136\u952e\u6765\u63cf\u8ff0\u6570\u636e\u3002\u7ee7\u4e0a\u4e00\u4e2a\u5df2\u6ce8\u518c\u6c7d\u8f66\u6570\u636e\u5e93\u7684\u793a\u4f8b\uff0c\u60f3\u8c61\u4e00\u4e2a\u5177\u6709\u4ee5\u4e0b\u7ed3\u6784\u7684\u8868\uff1a<\/p>\n<div class=\"secondary-code-label\" title=\"Sample table\">Sample table<\/div>\n<pre class=\"post-pre\"><code><\/code><\/pre>\n<p>\u8fd9\u662f\u6587\u7ae0\u300a\u5982\u4f55\u5728SQL\u4e2d\u4f7f\u7528\u4e3b\u952e\u300b\u7684\u7b2c2\u90e8\u5206\uff08\u51718\u90e8\u5206\uff09\u3002<\/p>\n<pre class=\"post-pre\"><code><\/code><\/pre>\n<pre class=\"post-pre\"><code>+---------------+-----------+------------+-------+------+\r\n| <mark>license_plate<\/mark> | brand     | model      | color | year |\r\n+---------------+-----------+------------+-------+------+\r\n| <mark>ABC123<\/mark>        | Ford      | Mustang    | Red   | 2018 |\r\n| <mark>CES214<\/mark>        | Ford      | Mustang    | Red   | 2018 |\r\n| DEF456        | Chevrolet | Camaro     | Blue  | 2016 |\r\n| GHI789        | Dodge     | Challenger | Black | 2014 |\r\n+---------------+-----------+------------+-------+------+\r\n<\/code><\/pre>\n<p>\u7b2c\u4e00\u884c\u548c\u7b2c\u4e8c\u884c\u90fd\u63cf\u8ff0\u4e86\u4e00\u8f862018\u5e74\u7684\u7ea2\u8272\u798f\u7279\u91ce\u9a6c\u3002\u4ec5\u51ed\u6c7d\u8f66\u5236\u9020\u5546\u548c\u578b\u53f7\uff0c\u60a8\u65e0\u6cd5\u552f\u4e00\u5730\u8bc6\u522b\u8be5\u8f66\u3002\u800c\u8f66\u724c\u5728\u8fd9\u4e24\u79cd\u60c5\u51b5\u4e0b\u662f\u4e0d\u540c\u7684\uff0c\u4e3a\u8868\u4e2d\u6bcf\u4e00\u884c\u63d0\u4f9b\u4e86\u4e00\u4e2a\u826f\u597d\u7684\u552f\u4e00\u6807\u8bc6\u7b26\u3002\u56e0\u4e3a\u8f66\u724c\u53f7\u7801\u5df2\u7ecf\u662f\u6570\u636e\u7684\u4e00\u90e8\u5206\uff0c\u5c06\u5176\u4f5c\u4e3a\u4e3b\u952e\u4f7f\u7528\u4f1a\u521b\u5efa\u4e00\u4e2a\u81ea\u7136\u952e\u3002\u5982\u679c\u60a8\u5728<code>license_plate<\/code>\u5217\u4e0a\u521b\u5efa\u8868\u65f6\u6ca1\u6709\u4f7f\u7528\u4e3b\u952e\uff0c\u90a3\u4e48\u5728\u67d0\u4e2a\u65f6\u95f4\u70b9\u4e0a\u6570\u636e\u96c6\u4e2d\u53ef\u80fd\u4f1a\u51fa\u73b0\u91cd\u590d\u6216\u7a7a\u767d\u7684\u8f66\u724c\u3002<\/p>\n<p>\u63a5\u4e0b\u6765\uff0c\u60a8\u5c06\u521b\u5efa\u4e00\u4e2a\u4e0e\u4e0a\u9762\u76f8\u4f3c\u7684\u8868\u683c\uff0c\u5176\u4e2d\u4f7f\u7528<code>license_plate<\/code>\u5217\u4f5c\u4e3a\u4e3b\u952e\uff0c\u5e76\u6dfb\u52a0\u4ee5\u4e0b\u5217\uff1a<\/p>\n<ul class=\"post-ul\">\n<li><code>license_plate<\/code>: \u6b64\u5217\u5b58\u50a8\u8f66\u724c\u53f7\u7801\uff0c\u6570\u636e\u7c7b\u578b\u4e3a<code>varchar<\/code>\u3002<\/li>\n<li><code>brand<\/code>: \u6b64\u5217\u5b58\u50a8\u6c7d\u8f66\u54c1\u724c\uff0c\u6570\u636e\u7c7b\u578b\u4e3a<code>varchar<\/code>\uff0c\u6700\u5927\u957f\u5ea6\u4e3a50\u4e2a\u5b57\u7b26\u3002<\/li>\n<li><code>model<\/code>: \u6b64\u5217\u5b58\u50a8\u6c7d\u8f66\u578b\u53f7\uff0c\u6570\u636e\u7c7b\u578b\u4e3a<code>varchar<\/code>\uff0c\u6700\u5927\u957f\u5ea6\u4e3a50\u4e2a\u5b57\u7b26\u3002<\/li>\n<li><code>color<\/code>: \u6b64\u5217\u5b58\u50a8\u6c7d\u8f66\u989c\u8272\uff0c\u6570\u636e\u7c7b\u578b\u4e3a<code>varchar<\/code>\uff0c\u6700\u5927\u957f\u5ea6\u4e3a20\u4e2a\u5b57\u7b26\u3002<\/li>\n<li><code>year<\/code>: \u6b64\u5217\u5b58\u50a8\u6c7d\u8f66\u5236\u9020\u5e74\u4efd\uff0c\u6570\u636e\u7c7b\u578b\u4e3a<code>int<\/code>\uff0c\u7528\u4e8e\u5b58\u50a8\u6570\u503c\u6570\u636e\u3002<\/li>\n<\/ul>\n<p>\u8981\u521b\u5efa\u6c7d\u8f66\u8868\uff0c\u8bf7\u6267\u884c\u4ee5\u4e0bSQL\u8bed\u53e5\u3002<\/p>\n<pre class=\"post-pre\"><code><\/code><\/pre>\n<ol>\n<li data-prefix=\"mysql&gt;\">CREATE TABLE cars <span class=\"token punctuation\">(<\/span><\/li>\n<li data-prefix=\"mysql&gt;\">license_plate varchar<span class=\"token punctuation\">(<\/span><span class=\"token number\">8<\/span><span class=\"token punctuation\">)<\/span> <mark>PRIMARY KEY<\/mark>,<\/li>\n<li data-prefix=\"mysql&gt;\">brand varchar<span class=\"token punctuation\">(<\/span><span class=\"token number\">50<\/span><span class=\"token punctuation\">)<\/span>,<\/li>\n<li data-prefix=\"mysql&gt;\">model varchar<span class=\"token punctuation\">(<\/span><span class=\"token number\">50<\/span><span class=\"token punctuation\">)<\/span>,<\/li>\n<li data-prefix=\"mysql&gt;\">color varchar<span class=\"token punctuation\">(<\/span><span class=\"token number\">20<\/span><span class=\"token punctuation\">)<\/span>,<\/li>\n<li data-prefix=\"mysql&gt;\">year int<\/li>\n<li data-prefix=\"mysql&gt;\"><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/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>\u4e3b\u952e\u7ea6\u675f\u7d27\u8ddf\u5728\u201clicense_plate\u201d\u6570\u636e\u7c7b\u578b\u5b9a\u4e49\u4e4b\u540e\u3002\u5f53\u5904\u7406\u57fa\u4e8e\u5355\u5217\u7684\u4e3b\u952e\u65f6\uff0c\u60a8\u53ef\u4ee5\u4f7f\u7528\u7b80\u5316\u7684\u8bed\u6cd5\u6765\u521b\u5efa\u4e3b\u952e\uff0c\u5373\u5728\u5217\u5b9a\u4e49\u4e2d\u5199\u5165\u201cPRIMARY KEY\u201d\u3002<\/p>\n<p>\u5982\u679c\u6253\u5370\u51fa\u4ee5\u4e0b\u8f93\u51fa\uff0c\u5219\u8868\u793a\u8868\u5df2\u6210\u529f\u521b\u5efa\uff1a<\/p>\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>Query OK, 0 rows affected (0.00 sec)\r\n<\/code><\/pre>\n<p>\u63a5\u7740\uff0c\u901a\u8fc7\u8fd0\u884c\u4ee5\u4e0b\u7684<code>INSERT INTO<\/code>\u64cd\u4f5c\uff0c\u5c06\u4e0a\u65b9\u4f8b\u5b50\u4e2d\u5448\u73b0\u7684\u6837\u672c\u884c\u52a0\u8f7d\u5230\u8868\u683c\u4e2d\u3002<\/p>\n<pre class=\"post-pre\"><code><\/code><\/pre>\n<ol>\n<li data-prefix=\"mysql&gt;\">INSERT INTO cars VALUES<\/li>\n<li data-prefix=\"mysql&gt;\"><span class=\"token punctuation\">(<\/span><span class=\"token string\">&#8216;ABC123&#8217;<\/span>, <span class=\"token string\">&#8216;Ford&#8217;<\/span>, <span class=\"token string\">&#8216;Mustang&#8217;<\/span>, <span class=\"token string\">&#8216;Red&#8217;<\/span>, <span class=\"token number\">2018<\/span><span class=\"token punctuation\">)<\/span>,<\/li>\n<li data-prefix=\"mysql&gt;\"><span class=\"token punctuation\">(<\/span><span class=\"token string\">&#8216;CES214&#8217;<\/span>, <span class=\"token string\">&#8216;Ford&#8217;<\/span>, <span class=\"token string\">&#8216;Mustang&#8217;<\/span>, <span class=\"token string\">&#8216;Red&#8217;<\/span>, <span class=\"token number\">2018<\/span><span class=\"token punctuation\">)<\/span>,<\/li>\n<li data-prefix=\"mysql&gt;\"><span class=\"token punctuation\">(<\/span><span class=\"token string\">&#8216;DEF456&#8217;<\/span>, <span class=\"token string\">&#8216;Chevrolet&#8217;<\/span>, <span class=\"token string\">&#8216;Camaro&#8217;<\/span>, <span class=\"token string\">&#8216;Blue&#8217;<\/span>, <span class=\"token number\">2016<\/span><span class=\"token punctuation\">)<\/span>,<\/li>\n<li data-prefix=\"mysql&gt;\"><span class=\"token punctuation\">(<\/span><span class=\"token string\">&#8216;GHI789&#8217;<\/span>, <span class=\"token string\">&#8216;Dodge&#8217;<\/span>, <span class=\"token string\">&#8216;Challenger&#8217;<\/span>, <span class=\"token string\">&#8216;Black&#8217;<\/span>, <span class=\"token number\">2014<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/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>\u6570\u636e\u5e93\u5c06\u8fd4\u56de\u6210\u529f\u6d88\u606f\u3002<\/p>\n<pre class=\"post-pre\"><code><\/code><\/pre>\n<div class=\"secondary-code-label\" title=\"Output\">\u8f93\u51fa<\/div>\n<p>\u8fd9\u662f\u6587\u7ae0\u300a\u5982\u4f55\u5728SQL\u4e2d\u4f7f\u7528\u4e3b\u952e\u300b\u7684\u7b2c3\u90e8\u5206\uff08\u51718\u90e8\u5206\uff09\u3002<\/p>\n<pre class=\"post-pre\"><code><\/code><\/pre>\n<p>Query OK, 4 rows affected (0.010 sec) Records: 4 Duplicates: 0 Warnings: 0<\/p>\n<pre class=\"post-pre\"><code><\/code><\/pre>\n<p>\u73b0\u5728\uff0c\u60a8\u53ef\u4ee5\u4f7f\u7528<code>SELECT<\/code>\u8bed\u53e5\u6765\u9a8c\u8bc1\u65b0\u521b\u5efa\u7684\u8868\u662f\u5426\u5305\u542b\u9884\u671f\u7684\u6570\u636e\u548c\u683c\u5f0f\u3002<\/p>\n<pre class=\"post-pre\"><code><\/code><\/pre>\n<ol>\n<li data-prefix=\"mysql&gt;\"><code>SELECT * FROM cars;<\/code><\/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\u5c06\u663e\u793a\u4e00\u4e2a\u7c7b\u4f3c\u4e8e\u672c\u8282\u5f00\u5934\u7684\u8868\u683c\u3002<\/p>\n<pre class=\"post-pre\"><code><\/code><\/pre>\n<div class=\"secondary-code-label\" title=\"Output\">\u8f93\u51fa<\/p>\n<pre class=\"post-pre\"><code><\/code><\/pre>\n<p>+&#8212;&#8212;&#8212;&#8212;&#8212;+&#8212;&#8212;&#8212;&#8211;+&#8212;&#8212;&#8212;&#8212;+&#8212;&#8212;-+&#8212;&#8212;+<\/p>\n<p>| license_plate | brand | model | color | year |<\/p>\n<p>+&#8212;&#8212;&#8212;&#8212;&#8212;+&#8212;&#8212;&#8212;&#8211;+&#8212;&#8212;&#8212;&#8212;+&#8212;&#8212;-+&#8212;&#8212;+<\/p>\n<p>| ABC123 | Ford | Mustang | Red | 2018 |<\/p>\n<p>| CES214 | Ford | Mustang | Red | 2018 |<\/p>\n<p>| DEF456 | Chevrolet | Camaro | Blue | 2016 |<\/p>\n<p>| GHI789 | Dodge | Challenger | Black | 2014 |<\/p>\n<p>+&#8212;&#8212;&#8212;&#8212;&#8212;+&#8212;&#8212;&#8212;&#8211;+&#8212;&#8212;&#8212;&#8212;+&#8212;&#8212;-+&#8212;&#8212;+<\/p>\n<pre class=\"post-pre\"><code><\/code><\/pre>\n<\/div>\n<p>\u63a5\u4e0b\u6765\uff0c\u60a8\u53ef\u4ee5\u9a8c\u8bc1\u6570\u636e\u5e93\u5f15\u64ce\u662f\u5426\u4fdd\u8bc1\u4e86\u4e3b\u952e\u89c4\u5219\u3002\u901a\u8fc7\u6267\u884c\u4ee5\u4e0b\u64cd\u4f5c\u5c1d\u8bd5\u63d2\u5165\u4e00\u8f86\u5177\u6709\u91cd\u590d\u8f66\u724c\u53f7\u7684\u6c7d\u8f66\uff1a<\/p>\n<pre class=\"post-pre\"><code><\/code><\/pre>\n<ol>\n<li data-prefix=\"mysql&gt;\"><code>INSERT INTO cars VALUES ('<mark>DEF456<\/mark>', 'Jeep', 'Wrangler', 'Yellow', 2019);<\/code><\/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>MySQL\u5c06\u4f1a\u8fd4\u56de\u4e00\u4e2a\u9519\u8bef\u4fe1\u606f\uff0c\u6307\u51fa\u201cDEF456\u201d\u8f66\u724c\u4f1a\u5bfc\u81f4\u4e3b\u952e\u91cd\u590d\u3002<\/p>\n<pre class=\"post-pre\"><code><\/code><\/pre>\n<div class=\"secondary-code-label\" title=\"Output\">\u8f93\u51fa<\/p>\n<pre class=\"post-pre\"><code><\/code><\/pre>\n<p>ERROR 1062 (23000): Duplicate entry &#8216;DEF456&#8217; for key &#8216;cars.PRIMARY&#8217;<\/p>\n<pre class=\"post-pre\"><code><\/code><\/pre>\n<\/div>\n<div class=\"post-conf-note\">\n<p class=\"post-conf-desc\">\u6ce8\u610f\uff1a<\/p>\n<div>\n<p>\u8bf7\u6ce8\u610f\uff1a\u5728\u5e55\u540e\uff0c\u4e3b\u952e\u662f\u901a\u8fc7\u552f\u4e00\u7d22\u5f15\u5b9e\u73b0\u7684\uff0c\u5e76\u4e14\u4e0e\u60a8\u53ef\u80fd\u624b\u52a8\u4e3a\u8868\u4e0a\u7684\u5176\u4ed6\u5217\u521b\u5efa\u7684\u7d22\u5f15\u5171\u4eab\u8bb8\u591a\u5c5e\u6027\u3002\u6700\u91cd\u8981\u7684\u662f\uff0c\u4e3b\u952e\u7d22\u5f15\u8fd8\u63d0\u9ad8\u4e86\u6839\u636e\u5b9a\u4e49\u7684\u7d22\u5f15\u5217\u5bf9\u8868\u8fdb\u884c\u67e5\u8be2\u7684\u6027\u80fd\u3002\u8981\u4e86\u89e3\u66f4\u591a\u5173\u4e8e\u5982\u4f55\u4f7f\u7528\u7d22\u5f15\u7684\u4fe1\u606f\uff0c\u8bf7\u53c2\u9605\u672c\u6559\u7a0b\u7cfb\u5217\u4e2d\u7684\u300a\u5982\u4f55\u4f7f\u7528\u7d22\u5f15\u300b\u6307\u5357\u3002\u60a8\u73b0\u5728\u53ef\u4ee5\u786e\u5b9a\u4e0d\u5141\u8bb8\u6709\u91cd\u590d\u8f66\u724c\u3002\u63a5\u4e0b\u6765\uff0c\u8bf7\u68c0\u67e5\u662f\u5426\u53ef\u80fd\u63d2\u5165\u4e00\u8f86\u6ca1\u6709\u8f66\u724c\u7684\u6c7d\u8f66\u3002<\/p>\n<pre class=\"post-pre\"><code><\/code><\/pre>\n<ol>\n<li data-prefix=\"mysql&gt;\"><code>INSERT INTO cars VALUES (<mark>NULL<\/mark>, 'Jeep', 'Wrangler', 'Yellow', 2019);<\/code><\/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\u6570\u636e\u5e93\u5c06\u4f1a\u7528\u53e6\u4e00\u6761\u9519\u8bef\u4fe1\u606f\u56de\u5e94\u3002<\/p>\n<pre class=\"post-pre\"><code><\/code><\/pre>\n<div class=\"secondary-code-label\" title=\"Output\">\u8f93\u51fa<\/p>\n<pre class=\"post-pre\"><code><\/code><\/pre>\n<p>ERROR 1048 (23000): Column &#8216;license_plate&#8217; cannot be null<\/p>\n<pre class=\"post-pre\"><code><\/code><\/pre>\n<\/div>\n<p>\u901a\u8fc7\u6570\u636e\u5e93\u65bd\u884c\u7684\u8fd9\u4e24\u6761\u89c4\u5219\uff0c\u60a8\u53ef\u4ee5\u786e\u4fe1\u8f66\u724c\u80fd\u591f\u552f\u4e00\u5730\u6807\u8bc6\u8868\u4e2d\u7684\u6bcf\u4e00\u884c\u3002\u5982\u679c\u60a8\u9488\u5bf9\u4efb\u4f55\u8f66\u724c\u67e5\u8be2\u8868\u683c\uff0c\u6bcf\u6b21\u60a8\u90fd\u53ef\u4ee5\u671f\u671b\u53ea\u8fd4\u56de\u4e00\u884c\u8bb0\u5f55\u3002<\/p>\n<\/div>\n<\/div>\n<p>\u5728\u4e0b\u4e00\u90e8\u5206\u4e2d\uff0c\u60a8\u5c06\u5b66\u4e60\u5982\u4f55\u4f7f\u7528\u591a\u5217\u4e3b\u952e\u3002<\/p>\n<h2>\u5728\u591a\u4e2a\u5217\u4e0a\u521b\u5efa\u4e3b\u952e<\/h2>\n<p>\u5f53\u4e00\u5217\u4e0d\u8db3\u4ee5\u552f\u4e00\u6807\u8bc6\u8868\u4e2d\u7684\u4e00\u884c\u65f6\uff0c\u53ef\u4ee5\u521b\u5efa\u4f7f\u7528\u591a\u5217\u7684\u4e3b\u952e\u3002<\/p>\n<p>\u4f8b\u5982\uff0c\u60f3\u8c61\u4e00\u4e0b\u4e00\u4e2a\u623f\u5c4b\u767b\u8bb0\u518c\uff0c\u5176\u4e2d\u65e0\u8bba\u8857\u9053\u540d\u79f0\u8fd8\u662f\u95e8\u724c\u53f7\u7801\u90fd\u65e0\u6cd5\u5355\u72ec\u8bc6\u522b\u4efb\u4f55\u4e00\u4e2a\u623f\u5c4b\u3002<\/p>\n<pre class=\"post-pre\"><code><\/code><\/pre>\n<div class=\"secondary-code-label\" title=\"Sample table\">\u793a\u4f8b\u8868<\/div>\n<p>\u8fd9\u662f\u6587\u7ae0\u300a\u5982\u4f55\u5728SQL\u4e2d\u4f7f\u7528\u4e3b\u952e\u300b\u7684\u7b2c4\u90e8\u5206\uff08\u51718\u90e8\u5206\uff09\u3002<\/p>\n<pre class=\"post-pre\"><code><\/code><\/pre>\n<pre>\r\n+-------------------+---------------+-------------------+------+\r\n| street_name       | street_number | house_owner       | year |\r\n+-------------------+---------------+-------------------+------+\r\n| 5th Avenue        | <mark>100<\/mark>           | Bob Johnson       | 2018 |\r\n| Broadway          | 1500          | Jane Smith        | 2016 |\r\n| <mark>Central Park West<\/mark> | <mark>100<\/mark>           | John Doe          | 2014 |\r\n| <mark>Central Park West<\/mark> | 200           | Tom Thompson      | 2015 |\r\n| Lexington Avenue  | 5001          | Samantha Davis    | 2010 |\r\n| Park Avenue       | 7000          | Michael Rodriguez | 2012 |\r\n+-------------------+---------------+-------------------+------+\r\n<\/pre>\n<pre class=\"post-pre\"><code><\/code><\/pre>\n<p>\u5728\u8868\u683c\u4e2d\uff0c\u201c\u4e2d\u592e\u516c\u56ed\u897f\u8def\u201d\u8fd9\u4e2a\u8857\u9053\u540d\u79f0\u51fa\u73b0\u591a\u6b21\uff0c\u201c100\u201d\u8fd9\u4e2a\u8857\u9053\u53f7\u7801\u4e5f\u662f\u5982\u6b64\u3002\u7136\u800c\uff0c\u6ca1\u6709\u91cd\u590d\u7684\u8857\u9053\u540d\u79f0\u548c\u8857\u9053\u53f7\u7801\u7684\u7ec4\u5408\u3002\u5728\u8fd9\u79cd\u60c5\u51b5\u4e0b\uff0c\u867d\u7136\u6ca1\u6709\u5355\u72ec\u7684\u5217\u53ef\u4ee5\u4f5c\u4e3a\u4e3b\u952e\uff0c\u4f46\u8fd9\u4e24\u4e2a\u503c\u7684\u7ec4\u5408\u53ef\u4ee5\u552f\u4e00\u5730\u6807\u8bc6\u8868\u683c\u4e2d\u7684\u6bcf\u4e00\u884c\u3002<\/p>\n<p>\u63a5\u4e0b\u6765\uff0c\u60a8\u5c06\u521b\u5efa\u4e00\u4e2a\u7c7b\u4f3c\u4e0a\u9762\u663e\u793a\u7684\u8868\u683c\uff0c\u5305\u542b\u4ee5\u4e0b\u5217\uff1a<\/p>\n<ul class=\"post-ul\">\n<li><strong>street_name<\/strong>\uff1a\u6b64\u5217\u5b58\u50a8\u623f\u5c4b\u6240\u5728\u7684\u8857\u9053\u540d\u79f0\uff0c\u6570\u636e\u7c7b\u578b\u4e3a<code>varchar<\/code>\uff0c\u9650\u5236\u4e3a50\u4e2a\u5b57\u7b26\u3002<\/li>\n<li><strong>street_number<\/strong>\uff1a\u6b64\u5217\u5b58\u50a8\u623f\u5c4b\u7684\u8857\u9053\u53f7\u7801\uff0c\u6570\u636e\u7c7b\u578b\u4e3a<code>varchar<\/code>\u3002\u6b64\u5217\u6700\u591a\u53ef\u5b58\u50a85\u4e2a\u5b57\u7b26\u3002\u5b83\u4e0d\u4f7f\u7528\u6570\u503c\u578b<code>int<\/code>\u6570\u636e\u7c7b\u578b\uff0c\u56e0\u4e3a\u67d0\u4e9b\u8857\u9053\u53f7\u7801\u53ef\u80fd\u5305\u542b\u5b57\u6bcd\uff08\u4f8b\u5982\uff0c200B\uff09\u3002<\/li>\n<li><strong>house_owner<\/strong>\uff1a\u6b64\u5217\u5b58\u50a8\u623f\u5c4b\u6240\u6709\u8005\u7684\u59d3\u540d\uff0c\u6570\u636e\u7c7b\u578b\u4e3a<code>varchar<\/code>\uff0c\u9650\u5236\u4e3a50\u4e2a\u5b57\u7b26\u3002<\/li>\n<li><strong>year<\/strong>\uff1a\u6b64\u5217\u5b58\u50a8\u623f\u5c4b\u5efa\u9020\u7684\u5e74\u4efd\uff0c\u6570\u636e\u7c7b\u578b\u4e3a<code>int<\/code>\uff0c\u7528\u4e8e\u5b58\u50a8\u6570\u503c\u3002<\/li>\n<\/ul>\n<p>\u8fd9\u6b21\uff0c\u4e3b\u952e\u5c06\u4f7f\u7528\u8857\u9053\u540d\u79f0\u548c\u8857\u9053\u53f7\u7801\u4e24\u5217\uff0c\u800c\u4e0d\u662f\u5355\u72ec\u7684\u4e00\u5217\u3002\u4e3a\u6b64\uff0c\u8bf7\u6267\u884c\u4ee5\u4e0bSQL\u8bed\u53e5\uff1a<\/p>\n<pre class=\"post-pre\"><code><\/code><\/pre>\n<ol>\n<li data-prefix=\"mysql&gt;\">CREATE TABLE houses <span class=\"token punctuation\">(<\/span><\/li>\n<li data-prefix=\"mysql&gt;\">street_name varchar<span class=\"token punctuation\">(<\/span><span class=\"token number\">50<\/span><span class=\"token punctuation\">)<\/span>,<\/li>\n<li data-prefix=\"mysql&gt;\">street_number varchar<span class=\"token punctuation\">(<\/span><span class=\"token number\">5<\/span><span class=\"token punctuation\">)<\/span>,<\/li>\n<li data-prefix=\"mysql&gt;\">house_owner varchar<span class=\"token punctuation\">(<\/span><span class=\"token number\">50<\/span><span class=\"token punctuation\">)<\/span>,<\/li>\n<li data-prefix=\"mysql&gt;\">year int,<\/li>\n<li data-prefix=\"mysql&gt;\"><mark>PRIMARY KEY<span class=\"token punctuation\">(<\/span>street_name, street_number<span class=\"token punctuation\">)<\/span><\/mark><\/li>\n<li data-prefix=\"mysql&gt;\"><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/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>\u8fd9\u4e00\u6b21\uff0c\u4e3b\u952e\u5b50\u53e5\u51fa\u73b0\u5728\u5217\u5b9a\u4e49\u4e4b\u4e0b\uff0c\u4e0e\u4e0a\u4e00\u4e2a\u4f8b\u5b50\u4e0d\u540c\u3002\u4e3b\u952e\u8bed\u53e5\u4e4b\u540e\u5e26\u6709\u62ec\u53f7\uff0c\u91cc\u9762\u5305\u542b\u4e24\u4e2a\u5217\u540d\uff1a<code>street_name<\/code>\u548c<code>street_number<\/code>\u3002\u8fd9\u79cd\u8bed\u6cd5\u5728<code>houses<\/code>\u8868\u4e2d\u521b\u5efa\u4e86\u8de8\u8d8a\u4e24\u5217\u7684\u4e3b\u952e\u3002<\/p>\n<p>\u5982\u679c\u4ee5\u4e0b\u8f93\u51fa\u6253\u5370\uff0c\u5219\u8868\u793a\u8868\u5df2\u6210\u529f\u521b\u5efa\uff1a<\/p>\n<pre class=\"post-pre\"><code><\/code><\/pre>\n<div class=\"secondary-code-label\" title=\"Output\">\u8f93\u51fa<\/div>\n<p>\u8fd9\u662f\u6587\u7ae0\u300a\u5982\u4f55\u5728SQL\u4e2d\u4f7f\u7528\u4e3b\u952e\u300b\u7684\u7b2c5\u90e8\u5206\uff08\u51718\u90e8\u5206\uff09\u3002<\/p>\n<pre class=\"post-pre\"><code><\/code><\/pre>\n<p>Query OK, 0 rows affected (0.00 sec)<\/p>\n<pre class=\"post-pre\"><code><\/code><\/pre>\n<p>\u63a5\u7740\uff0c\u901a\u8fc7\u6267\u884c\u4ee5\u4e0b\u7684<code>INSERT INTO<\/code>\u64cd\u4f5c\uff0c\u7528\u524d\u4e00\u4e2a\u793a\u4f8b\u4e2d\u5448\u73b0\u7684\u6837\u672c\u884c\u52a0\u8f7d\u8868\u683c\u3002<\/p>\n<pre class=\"post-pre\"><code><\/code><\/pre>\n<ol>\n<li data-prefix=\"mysql&gt;\">INSERT INTO houses VALUES<\/li>\n<li data-prefix=\"mysql&gt;\"><span class=\"token punctuation\">(<\/span><span class=\"token string\">&#8216;Central Park West&#8217;<\/span>, <span class=\"token string\">&#8216;100&#8217;<\/span>, <span class=\"token string\">&#8216;John Doe&#8217;<\/span>, <span class=\"token number\">2014<\/span><span class=\"token punctuation\">)<\/span>,<\/li>\n<li data-prefix=\"mysql&gt;\"><span class=\"token punctuation\">(<\/span><span class=\"token string\">&#8216;Broadway&#8217;<\/span>, <span class=\"token string\">&#8216;1500&#8217;<\/span>, <span class=\"token string\">&#8216;Jane Smith&#8217;<\/span>, <span class=\"token number\">2016<\/span><span class=\"token punctuation\">)<\/span>,<\/li>\n<li data-prefix=\"mysql&gt;\"><span class=\"token punctuation\">(<\/span><span class=\"token string\">&#8216;5th Avenue&#8217;<\/span>, <span class=\"token string\">&#8216;100&#8217;<\/span>, <span class=\"token string\">&#8216;Bob Johnson&#8217;<\/span>, <span class=\"token number\">2018<\/span><span class=\"token punctuation\">)<\/span>,<\/li>\n<li data-prefix=\"mysql&gt;\"><span class=\"token punctuation\">(<\/span><span class=\"token string\">&#8216;Lexington Avenue&#8217;<\/span>, <span class=\"token string\">&#8216;5001&#8217;<\/span>, <span class=\"token string\">&#8216;Samantha Davis&#8217;<\/span>, <span class=\"token number\">2010<\/span><span class=\"token punctuation\">)<\/span>,<\/li>\n<li data-prefix=\"mysql&gt;\"><span class=\"token punctuation\">(<\/span><span class=\"token string\">&#8216;Park Avenue&#8217;<\/span>, <span class=\"token string\">&#8216;7000&#8217;<\/span>, <span class=\"token string\">&#8216;Michael Rodriguez&#8217;<\/span>, <span class=\"token number\">2012<\/span><span class=\"token punctuation\">)<\/span>,<\/li>\n<li data-prefix=\"mysql&gt;\"><span class=\"token punctuation\">(<\/span><span class=\"token string\">&#8216;Central Park West&#8217;<\/span>, <span class=\"token string\">&#8216;200&#8217;<\/span>, <span class=\"token string\">&#8216;Tom Thompson&#8217;<\/span>, <span class=\"token number\">2015<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/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>\u6570\u636e\u5e93\u5c06\u4ee5\u6210\u529f\u6d88\u606f\u505a\u51fa\u56de\u5e94\u3002<\/p>\n<pre class=\"post-pre\"><code><\/code><\/pre>\n<div class=\"secondary-code-label\" title=\"Output\">\u8f93\u51fa<\/p>\n<pre class=\"post-pre\"><code><\/code><\/pre>\n<p>Query OK, 6 rows affected (0.000 sec) Records: 6 Duplicates: 0 Warnings: 0<\/p>\n<pre class=\"post-pre\"><code><\/code><\/pre>\n<\/div>\n<p>\u60a8\u73b0\u5728\u53ef\u4ee5\u4f7f\u7528<code>SELECT<\/code>\u8bed\u53e5\u6765\u9a8c\u8bc1\u65b0\u521b\u5efa\u7684\u8868\u662f\u5426\u5305\u542b\u9884\u671f\u7684\u6570\u636e\u548c\u683c\u5f0f\u3002<\/p>\n<pre class=\"post-pre\"><code><\/code><\/pre>\n<ol>\n<li data-prefix=\"mysql&gt;\">SELECT * FROM houses<span class=\"token punctuation\">;<\/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\u5c06\u663e\u793a\u4e00\u4e2a\u7c7b\u4f3c\u4e8e\u672c\u8282\u5f00\u5934\u7684\u8868\u683c\u3002<\/p>\n<pre class=\"post-pre\"><code><\/code><\/pre>\n<div class=\"secondary-code-label\" title=\"Output\">\u8f93\u51fa<\/p>\n<pre class=\"post-pre\"><code><\/code><\/pre>\n<p>+&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;-+&#8212;&#8212;&#8212;&#8212;&#8212;+&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;-+&#8212;&#8212;+<\/p>\n<p>| street_name | street_number | house_owner | year |<\/p>\n<p>+&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;-+&#8212;&#8212;&#8212;&#8212;&#8212;+&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;-+&#8212;&#8212;+<\/p>\n<p>| 5th Avenue | 100 | Bob Johnson | 2018 |<\/p>\n<p>| Broadway | 1500 | Jane Smith | 2016 |<\/p>\n<p>| Central Park West | 100 | John Doe | 2014 |<\/p>\n<p>| Central Park West | 200 | Tom Thompson | 2015 |<\/p>\n<p>| Lexington Avenue | 5001 | Samantha Davis | 2010 |<\/p>\n<p>| Park Avenue | 7000 | Michael Rodriguez | 2012 |<\/p>\n<p>+&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;-+&#8212;&#8212;&#8212;&#8212;&#8212;+&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;-+&#8212;&#8212;+<\/p>\n<p>6 rows in set (0.000 sec)<\/p>\n<pre class=\"post-pre\"><code><\/code><\/pre>\n<\/div>\n<p>\u73b0\u5728\u8ba9\u6211\u4eec\u9a8c\u8bc1\u4e00\u4e0b\u6570\u636e\u5e93\u662f\u5426\u5141\u8bb8\u63d2\u5165\u5177\u6709\u76f8\u540c\u8857\u9053\u540d\u79f0\u548c\u8857\u9053\u53f7\u7801\u7684\u884c\uff0c\u4f46\u662f\u9650\u5236\u5728\u8868\u4e2d\u51fa\u73b0\u91cd\u590d\u7684\u5b8c\u6574\u5730\u5740\u3002\u8ba9\u6211\u4eec\u9996\u5148\u5728\u516c\u56ed\u5927\u9053\u4e0a\u518d\u6dfb\u52a0\u4e00\u6240\u623f\u5b50\u3002<\/p>\n<pre class=\"post-pre\"><code><\/code><\/pre>\n<ol>\n<li data-prefix=\"mysql&gt;\">INSERT INTO houses VALUES <span class=\"token punctuation\">(<\/span><mark><span class=\"token string\">&#8216;Park Avenue&#8217;<\/span><\/mark>, <span class=\"token string\">&#8216;8000&#8217;<\/span>, <span class=\"token string\">&#8216;Emily Brown&#8217;<\/span>, <span class=\"token number\">2011<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/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>\u7531\u4e8e\u4e4b\u524d\u7684\u8868\u4e2d\u6ca1\u6709\u51fa\u73b08000 Park Avenue\u7684\u5730\u5740\uff0cMySQL\u5c06\u4f1a\u8fd4\u56de\u4e00\u4e2a\u6210\u529f\u7684\u6d88\u606f\u3002<\/p>\n<pre class=\"post-pre\"><code><\/code><\/pre>\n<div class=\"secondary-code-label\" title=\"Output\">\u8f93\u51fa<\/div>\n<p>\u8fd9\u662f\u6587\u7ae0\u300a\u5982\u4f55\u5728SQL\u4e2d\u4f7f\u7528\u4e3b\u952e\u300b\u7684\u7b2c6\u90e8\u5206\uff08\u51718\u90e8\u5206\uff09\u3002<\/p>\n<pre class=\"post-pre\"><code><\/code><\/pre>\n<p>Query OK, 1 row affected (0.010 sec)<\/p>\n<pre class=\"post-pre\"><code><\/code><\/pre>\n<p>\u5f53\u60a8\u5728\u4e3b\u88578000\u53f7\u589e\u52a0\u4e00\u680b\u623f\u5c4b\u65f6\uff0c\u91cd\u590d\u7684\u8857\u9053\u7f16\u53f7\u5c06\u5bfc\u81f4\u7c7b\u4f3c\u7684\u7ed3\u679c\u3002<\/p>\n<pre class=\"post-pre\"><code><\/code><\/pre>\n<ol>\n<li data-prefix=\"mysql&gt;\">INSERT INTO houses VALUES (<span class=\"token string\">&#8216;Main Street&#8217;<\/span>, <mark><span class=\"token string\">&#8216;8000&#8217;<\/span><\/mark>, <span class=\"token string\">&#8216;David Jones&#8217;<\/span>, <span class=\"token number\">2009<\/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>\u7531\u4e8e\u5b8c\u6574\u7684\u5730\u5740\u4e0d\u91cd\u590d\uff0c\u518d\u6b21\u63d2\u5165\u5c06\u6b63\u786e\u5730\u63d2\u5165\u65b0\u884c\u3002<\/p>\n<pre class=\"post-pre\"><code><\/code><\/pre>\n<div class=\"secondary-code-label\" title=\"Output\">\u8f93\u51fa<\/p>\n<pre class=\"post-pre\"><code><\/code><\/pre>\n<p>Query OK, 1 row affected (0.010 sec)<\/p>\n<pre class=\"post-pre\"><code><\/code><\/pre>\n<p>\u7136\u800c\uff0c\u5c1d\u8bd5\u4f7f\u7528\u4e0b\u9762\u7684INSERT\u8bed\u53e5\u5728\u7b2c\u4e94\u5927\u9053100\u53f7\u4e0a\u589e\u52a0\u53e6\u4e00\u680b\u623f\u5b50\u3002<\/p>\n<pre class=\"post-pre\"><code><\/code><\/pre>\n<ol>\n<li data-prefix=\"mysql&gt;\">INSERT INTO houses VALUES (<mark><span class=\"token string\">&#8216;5th Avenue&#8217;<\/span><\/mark>, <mark><span class=\"token string\">&#8216;100&#8217;<\/span><\/mark>, <span class=\"token string\">&#8216;Josh Gordon&#8217;<\/span>, <span class=\"token number\">2008<\/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>\u6570\u636e\u5e93\u5c06\u8fd4\u56de\u4e00\u4e2a\u9519\u8bef\u6d88\u606f\uff0c\u901a\u77e5\u60a8\u6709\u5173\u4e3b\u952e\u5bf9\u503c\u4e3a\u201c\u7b2c\u4e94\u5927\u9053\u201d\u548c\u201c100\u201d\u5b58\u5728\u91cd\u590d\u9879\u7684\u4fe1\u606f\u3002<\/p>\n<pre class=\"post-pre\"><code><\/code><\/pre>\n<div class=\"secondary-code-label\" title=\"Output\">\u8f93\u51fa<\/p>\n<pre class=\"post-pre\"><code><\/code><\/pre>\n<p>ERROR 1062 (23000): Duplicate entry &#8216;<mark>5th Avenue<\/mark>&#8211;<mark>100<\/mark>&#8216; for key &#8216;houses.PRIMARY&#8217;<\/p>\n<pre class=\"post-pre\"><code><\/code><\/pre>\n<p>\u8be5\u6570\u636e\u5e93\u6309\u7167\u4e3b\u952e\u89c4\u5219\u8fdb\u884c\u4e86\u6b63\u786e\u7684\u5b9e\u65bd\uff0c\u8be5\u952e\u88ab\u5b9a\u4e49\u5728\u4e00\u5bf9\u5217\u4e0a\u3002\u60a8\u53ef\u4ee5\u786e\u4fe1\u8868\u4e2d\u4e0d\u4f1a\u91cd\u590d\u51fa\u73b0\u7531\u8857\u9053\u540d\u79f0\u548c\u95e8\u724c\u53f7\u7ec4\u6210\u7684\u5b8c\u6574\u5730\u5740\u3002<\/p>\n<p>\u5728\u672c\u90e8\u5206\u4e2d\uff0c\u60a8\u4f7f\u7528\u4e00\u5bf9\u5217\u521b\u5efa\u4e86\u4e00\u4e2a\u81ea\u7136\u952e\uff0c\u4ee5\u552f\u4e00\u5730\u8bc6\u522b\u623f\u5c4b\u8868\u4e2d\u7684\u6bcf\u4e00\u884c\u3002\u4f46\u662f\uff0c\u5e76\u4e0d\u603b\u662f\u80fd\u591f\u4ece\u6570\u636e\u96c6\u4e2d\u6d3e\u751f\u4e3b\u952e\u3002\u5728\u4e0b\u4e00\u90e8\u5206\u4e2d\uff0c\u60a8\u5c06\u4f7f\u7528\u4e0d\u76f4\u63a5\u6765\u81ea\u6570\u636e\u7684\u4eba\u5de5\u4e3b\u952e\u3002<\/p>\n<h2>\u521b\u5efa\u4e00\u4e2a\u8fde\u7eed\u7684\u4e3b\u952e<\/h2>\n<p>\u76f4\u5230\u73b0\u5728\uff0c\u60a8\u5df2\u7ecf\u5728\u793a\u4f8b\u6570\u636e\u96c6\u4e2d\u4f7f\u7528\u73b0\u6709\u5217\u521b\u5efa\u4e86\u72ec\u7279\u7684\u4e3b\u952e\u3002\u4f46\u5728\u67d0\u4e9b\u60c5\u51b5\u4e0b\uff0c\u6570\u636e\u4e0d\u53ef\u907f\u514d\u5730\u4f1a\u91cd\u590d\uff0c\u4f7f\u5f97\u4efb\u4f55\u5217\u90fd\u65e0\u6cd5\u6210\u4e3a\u826f\u597d\u7684\u552f\u4e00\u6807\u8bc6\u7b26\u3002\u5728\u8fd9\u4e9b\u60c5\u51b5\u4e0b\uff0c\u60a8\u53ef\u4ee5\u4f7f\u7528\u751f\u6210\u7684\u6807\u8bc6\u7b26\u521b\u5efa\u8fde\u7eed\u7684\u4e3b\u952e\u3002\u5f53\u60a8\u624b\u5934\u7684\u6570\u636e\u9700\u8981\u60a8\u8bbe\u8ba1\u65b0\u7684\u6807\u8bc6\u7b26\u6765\u552f\u4e00\u6807\u8bc6\u884c\u65f6\uff0c\u57fa\u4e8e\u8fd9\u4e9b\u4eba\u5de5\u6807\u8bc6\u7b26\u521b\u5efa\u7684\u4e3b\u952e\u88ab\u79f0\u4e3a\u4ee3\u7406\u952e\u3002<\/p>\n<p>\u60f3\u8c61\u4e00\u4e0b\u4e00\u4e2a\u4e66\u53cb\u4f1a\u6210\u5458\u540d\u5355\u2014\u2014\u8fd9\u662f\u4e00\u4e2a\u975e\u6b63\u5f0f\u7684\u805a\u4f1a\uff0c\u4efb\u4f55\u4eba\u90fd\u53ef\u4ee5\u5728\u4e0d\u51fa\u793a\u653f\u5e9c\u7b7e\u53d1\u7684\u8eab\u4efd\u8bc1\u660e\u7684\u60c5\u51b5\u4e0b\u52a0\u5165\u3002\u6709\u53ef\u80fd\u4f1a\u6709\u540c\u540d\u7684\u4eba\u5728\u67d0\u4e2a\u65f6\u95f4\u52a0\u5165\u8fd9\u4e2a\u4ff1\u4e50\u90e8\u3002<\/p>\n<pre class=\"post-pre\"><code><\/code><\/pre>\n<div class=\"secondary-code-label\" title=\"Sample table\">\u793a\u4f8b\u8868<\/p>\n<pre class=\"post-pre\"><code><\/code><\/pre>\n<p>+&#8212;&#8212;&#8212;&#8212;+&#8212;&#8212;&#8212;&#8211;+<\/p>\n<p>| first_name | last_name |<\/p>\n<p>+&#8212;&#8212;&#8212;&#8212;+&#8212;&#8212;&#8212;&#8211;+<\/p>\n<p>| John | Doe |<\/p>\n<p>| <mark>Jane<\/mark> | <mark>Smith<\/mark> |<\/p>\n<p>| <mark>Bob<\/mark> | <mark>Johnson<\/mark> |<\/p>\n<p>| Samantha | Davis |<\/p>\n<p>| Michael | Rodriguez |<\/p>\n<p>| Tom | Thompson |<\/p>\n<p>| Sara | Johnson |<\/p>\n<p>| David | Jones |<\/p>\n<p>| <mark>Jane<\/mark> | <mark>Smith<\/mark> |<\/p>\n<p>| <mark>Bob<\/mark> | <mark>Johnson<\/mark> |<\/p>\n<p>+&#8212;&#8212;&#8212;&#8212;+&#8212;&#8212;&#8212;&#8211;+<\/p>\n<pre class=\"post-pre\"><code><\/code><\/pre>\n<p>\u8868\u683c\u4e2d\u91cd\u590d\u51fa\u73b0\u4e86Bob Johnson\u548cJane Smith\u8fd9\u4e24\u4e2a\u540d\u5b57\u3002\u4f60\u9700\u8981\u4f7f\u7528\u4e00\u4e2a\u989d\u5916\u7684\u8bc6\u522b\u7b26\u6765\u786e\u4fdd\u8c01\u662f\u8c01\uff0c\u5e76\u4e14\u65e0\u6cd5\u4ee5\u4efb\u4f55\u65b9\u5f0f\u552f\u4e00\u5730\u8bc6\u522b\u8868\u683c\u4e2d\u7684\u884c\u3002\u5982\u679c\u4f60\u5c06\u4e66\u53cb\u4ff1\u4e50\u90e8\u6210\u5458\u540d\u5355\u4fdd\u7559\u5728\u7eb8\u4e0a\uff0c\u4f60\u53ef\u4ee5\u4f7f\u7528\u8f85\u52a9\u8bc6\u522b\u7b26\u6765\u5e2e\u52a9\u533a\u5206\u540c\u540d\u7684\u4eba\u3002<\/p>\n<p>\u5728\u5173\u7cfb\u6570\u636e\u5e93\u4e2d\uff0c\u60a8\u53ef\u4ee5\u901a\u8fc7\u4f7f\u7528\u4e00\u4e2a\u989d\u5916\u7684\u5217\u6765\u6267\u884c\u7c7b\u4f3c\u7684\u64cd\u4f5c\uff0c\u8be5\u5217\u7528\u4e8e\u4fdd\u5b58\u751f\u6210\u7684\u65e0\u5b9e\u9645\u542b\u4e49\u7684\u6807\u8bc6\u7b26\uff0c\u5176\u552f\u4e00\u76ee\u7684\u662f\u552f\u4e00\u5730\u533a\u5206\u8868\u4e2d\u7684\u6240\u6709\u884c\u3002\u6211\u4eec\u53ef\u4ee5\u5c06\u5176\u79f0\u4e3a\u6210\u5458ID\u3002<\/p>\n<p>\u7136\u800c\uff0c\u6bcf\u5f53\u60a8\u60f3\u5c06\u53e6\u4e00\u4e2a\u8bfb\u4e66\u4ff1\u4e50\u90e8\u6210\u5458\u6dfb\u52a0\u5230\u6570\u636e\u5e93\u4e2d\u65f6\uff0c\u521b\u5efa\u8fd9\u6837\u7684\u6807\u8bc6\u7b26\u5c06\u662f\u4e00\u79cd\u8d1f\u62c5\u3002\u4e3a\u4e86\u89e3\u51b3\u8fd9\u4e2a\u95ee\u9898\uff0cMySQL\u63d0\u4f9b\u4e86\u81ea\u52a8\u9012\u589e\u6570\u5b57\u5217\u7684\u529f\u80fd\uff0c\u6570\u636e\u5e93\u4f1a\u901a\u8fc7\u9012\u589e\u6574\u6570\u5e8f\u5217\u81ea\u52a8\u63d0\u4f9b\u5217\u7684\u503c\u3002<\/p>\n<p>\u8ba9\u6211\u4eec\u521b\u5efa\u4e00\u4e2a\u4e0e\u4e0a\u9762\u6240\u793a\u76f8\u4f3c\u7684\u8868\u683c\u3002\u60a8\u5c06\u6dfb\u52a0\u4e00\u4e2a\u989d\u5916\u7684\u81ea\u589e\u5217\uff08member_id\uff09\uff0c\u7528\u4e8e\u4fdd\u5b58\u6bcf\u4e2a\u4ff1\u4e50\u90e8\u6210\u5458\u7684\u81ea\u52a8\u5206\u914d\u53f7\u7801\u3002\u8fd9\u4e2a\u81ea\u52a8\u5206\u914d\u7684\u53f7\u7801\u5c06\u4f5c\u4e3a\u8be5\u8868\u7684\u4e3b\u952e\u3002<\/p>\n<ul class=\"post-ul\">\n<li><strong>member_id\uff1a<\/strong>\u6b64\u5217\u4fdd\u5b58\u4e00\u4e2a\u81ea\u52a8\u9012\u589e\u7684\u6570\u5b57\u6807\u8bc6\u7b26\uff0c\u7531<code>int<\/code>\u6570\u636e\u7c7b\u578b\u8868\u793a\u3002<\/li>\n<li><strong>first_name\uff1a<\/strong>\u6b64\u5217\u4fdd\u5b58\u4ff1\u4e50\u90e8\u6210\u5458\u7684\u540d\u5b57\uff0c\u7531<code>varchar<\/code>\u6570\u636e\u7c7b\u578b\u8868\u793a\uff0c\u9650\u5236\u4e3a50\u4e2a\u5b57\u7b26\u3002<\/li>\n<li><strong>last_name\uff1a<\/strong>\u6b64\u5217\u4fdd\u5b58\u4ff1\u4e50\u90e8\u6210\u5458\u7684\u59d3\u6c0f\uff0c\u7531<code>varchar<\/code>\u6570\u636e\u7c7b\u578b\u8868\u793a\uff0c\u9650\u5236\u4e3a50\u4e2a\u5b57\u7b26\u3002<\/li>\n<\/ul>\n<p>\u521b\u5efa\u8868\u683c\uff0c\u6267\u884c\u4ee5\u4e0bSQL\u8bed\u53e5\u3002<\/p>\n<pre class=\"post-pre\"><code><\/code><\/pre>\n<ol>\n<li data-prefix=\"mysql&gt;\">CREATE TABLE club_members (<\/li>\n<li data-prefix=\"mysql&gt;\">member_id int <mark>AUTO_INCREMENT PRIMARY KEY<\/mark>,<\/li>\n<li data-prefix=\"mysql&gt;\">first_name varchar(50),<\/li>\n<li data-prefix=\"mysql&gt;\">last_name varchar(50)<\/li>\n<li data-prefix=\"mysql&gt;\">);<\/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>\u867d\u7136<code>PRIMARY KEY<\/code>\u5b50\u53e5\u51fa\u73b0\u5728\u5217\u7c7b\u578b\u5b9a\u4e49\u4e4b\u540e\uff0c\u5c31\u50cf\u5355\u5217\u4e3b\u952e\u4e00\u6837\uff0c\u4f46\u5728\u5b83\u4e4b\u524d\u8fd8\u6709\u4e00\u4e2a\u989d\u5916\u7684\u5c5e\u6027\uff1a<code>AUTO_INCREMENT<\/code>\u3002\u5b83\u544a\u8bc9MySQL\u5728\u6ca1\u6709\u663e\u5f0f\u63d0\u4f9b\u7684\u60c5\u51b5\u4e0b\u81ea\u52a8\u751f\u6210\u8be5\u5217\u7684\u503c\uff0c\u4f7f\u7528\u9012\u589e\u7684\u5e8f\u5217\u53f7\u3002<\/p>\n<div class=\"post-conf-note\">\n<p class=\"post-conf-desc\"><strong>\u6ce8\u610f\uff1a<\/strong>\u4e3a\u5b9a\u4e49\u5217\u800c\u4f7f\u7528\u7684<code>AUTO_INCREMENT<\/code>\u5c5e\u6027\u662f\u7279\u5b9a\u4e8eMySQL\u7684\u3002\u5176\u4ed6\u6570\u636e\u5e93\u901a\u5e38\u63d0\u4f9b\u7c7b\u4f3c\u7684\u751f\u6210\u8fde\u7eed\u952e\u7684\u65b9\u6cd5\uff0c\u4f46\u8bed\u6cd5\u5728\u4e0d\u540c\u7684\u5f15\u64ce\u4e2d\u4f1a\u6709\u6240\u4e0d\u540c\u3002\u5f53\u6709\u7591\u95ee\u65f6\uff0c\u8bf7\u53c2\u8003\u60a8\u6240\u4f7f\u7528\u7684\u5173\u7cfb\u6570\u636e\u5e93\u7ba1\u7406\u7cfb\u7edf\u7684\u5b98\u65b9\u6587\u6863\u3002\u5982\u679c\u51fa\u73b0\u4ee5\u4e0b\u8f93\u51fa\uff0c\u5219\u8868\u793a\u8868\u5df2\u521b\u5efa\uff1a<\/p>\n<pre class=\"post-pre\"><code><\/code><\/pre>\n<div class=\"secondary-code-label\" title=\"Output\">\u8f93\u51fa<\/div>\n<\/div>\n<pre class=\"post-pre\"><code><\/code><\/pre>\n<p>Query OK, 0 rows affected (0.00 sec)<\/p>\n<pre class=\"post-pre\"><code><\/code><\/pre>\n<p>\u968f\u540e\uff0c\u901a\u8fc7\u8fd0\u884c\u4ee5\u4e0b\u7684<code>INSERT INTO<\/code>\u64cd\u4f5c\uff0c\u5c06\u793a\u4f8b\u4e2d\u63d0\u4f9b\u7684\u6837\u672c\u884c\u52a0\u8f7d\u5230\u8868\u683c\u4e2d\u3002<\/p>\n<pre class=\"post-pre\"><code><\/code><\/pre>\n<ol>\n<li data-prefix=\"mysql&gt;\">INSERT INTO club_members <mark><span class=\"token punctuation\">(<\/span>first_name, last_name<span class=\"token punctuation\">)<\/span><\/mark> VALUES<\/li>\n<li data-prefix=\"mysql&gt;\"><span class=\"token punctuation\">(<\/span><span class=\"token string\">&#8216;John&#8217;<\/span>, <span class=\"token string\">&#8216;Doe&#8217;<\/span><span class=\"token punctuation\">)<\/span>,<\/li>\n<li data-prefix=\"mysql&gt;\"><span class=\"token punctuation\">(<\/span><span class=\"token string\">&#8216;Jane&#8217;<\/span>, <span class=\"token string\">&#8216;Smith&#8217;<\/span><span class=\"token punctuation\">)<\/span>,<\/li>\n<li data-prefix=\"mysql&gt;\"><span class=\"token punctuation\">(<\/span><span class=\"token string\">&#8216;Bob&#8217;<\/span>, <span class=\"token string\">&#8216;Johnson&#8217;<\/span><span class=\"token punctuation\">)<\/span>,<\/li>\n<li data-prefix=\"mysql&gt;\"><span class=\"token punctuation\">(<\/span><span class=\"token string\">&#8216;Samantha&#8217;<\/span>, <span class=\"token string\">&#8216;Davis&#8217;<\/span><span class=\"token punctuation\">)<\/span>,<\/li>\n<li data-prefix=\"mysql&gt;\"><span class=\"token punctuation\">(<\/span><span class=\"token string\">&#8216;Michael&#8217;<\/span>, <span class=\"token string\">&#8216;Rodriguez&#8217;<\/span><span class=\"token punctuation\">)<\/span>,<\/li>\n<li data-prefix=\"mysql&gt;\"><span class=\"token punctuation\">(<\/span><span class=\"token string\">&#8216;Tom&#8217;<\/span>, <span class=\"token string\">&#8216;Thompson&#8217;<\/span><span class=\"token punctuation\">)<\/span>,<\/li>\n<li data-prefix=\"mysql&gt;\"><span class=\"token punctuation\">(<\/span><span class=\"token string\">&#8216;Sara&#8217;<\/span>, <span class=\"token string\">&#8216;Johnson&#8217;<\/span><span class=\"token punctuation\">)<\/span>,<\/li>\n<li data-prefix=\"mysql&gt;\"><span class=\"token punctuation\">(<\/span><span class=\"token string\">&#8216;David&#8217;<\/span>, <span class=\"token string\">&#8216;Jones&#8217;<\/span><span class=\"token punctuation\">)<\/span>,<\/li>\n<li data-prefix=\"mysql&gt;\"><span class=\"token punctuation\">(<\/span><span class=\"token string\">&#8216;Jane&#8217;<\/span>, <span class=\"token string\">&#8216;Smith&#8217;<\/span><span class=\"token punctuation\">)<\/span>,<\/li>\n<li data-prefix=\"mysql&gt;\"><span class=\"token punctuation\">(<\/span><span class=\"token string\">&#8216;Bob&#8217;<\/span>, <span class=\"token string\">&#8216;Johnson&#8217;<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/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>\u73b0\u5728\u7684<code>INSERT<\/code>\u8bed\u53e5\u5305\u62ec\u4e86\u5217\u540d\u5217\u8868\uff08<code>first_name<\/code>\u548c<code>last_name<\/code>\uff09\uff0c\u8fd9\u6837\u6570\u636e\u5e93\u5c31\u77e5\u9053\u6570\u636e\u96c6\u4e2d\u6ca1\u6709\u63d0\u4f9b<code>member_id<\/code>\u5217\uff0c\u56e0\u6b64\u5e94\u8be5\u4f7f\u7528\u5176\u9ed8\u8ba4\u503c\u3002<\/p>\n<p>\u6570\u636e\u5e93\u5c06\u4f1a\u4ee5\u6210\u529f\u4fe1\u606f\u4f5c\u51fa\u56de\u5e94\u3002<\/p>\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>Query OK, 10 rows affected (0.002 sec) Records: 10 Duplicates: 0 Warnings: 0<\/p>\n<pre class=\"post-pre\"><code><\/code><\/pre>\n<p>\u4f7f\u7528<code>SELECT<\/code>\u8bed\u53e5\u6765\u9a8c\u8bc1\u65b0\u521b\u5efa\u7684\u8868\u4e2d\u7684\u6570\u636e\u3002<\/p>\n<pre class=\"post-pre\"><code><\/code><\/pre>\n<ol>\n<li data-prefix=\"mysql&gt;\">SELECT * FROM club_members<span class=\"token punctuation\">;<\/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\u7ed3\u679c\u5c06\u4f1a\u663e\u793a\u4e00\u4e2a\u7c7b\u4f3c\u4e8e\u672c\u8282\u5f00\u59cb\u90e8\u5206\u7684\u8868\u683c\u3002<\/p>\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>+&#8212;&#8212;&#8212;&#8211;+&#8212;&#8212;&#8212;&#8212;+&#8212;&#8212;&#8212;&#8211;+<\/p>\n<p>| <mark>member_id<\/mark> | first_name | last_name |<\/p>\n<p>+&#8212;&#8212;&#8212;&#8211;+&#8212;&#8212;&#8212;&#8212;+&#8212;&#8212;&#8212;&#8211;+<\/p>\n<p>| 1 | John | Doe |<\/p>\n<p>| <mark>2<\/mark> | <mark>Jane<\/mark> | <mark>Smith<\/mark> |<\/p>\n<p>| <mark>3<\/mark> | <mark>Bob<\/mark> | <mark>Johnson<\/mark> |<\/p>\n<p>| 4 | Samantha | Davis |<\/p>\n<p>| 5 | Michael | Rodriguez |<\/p>\n<p>| 6 | Tom | Thompson |<\/p>\n<p>| 7 | Sara | Johnson |<\/p>\n<p>| 8 | David | Jones |<\/p>\n<p>| <mark>9<\/mark> | <mark>Jane<\/mark> | <mark>Smith<\/mark> |<\/p>\n<p>| <mark>10<\/mark> | <mark>Bob<\/mark> | <mark>Johnson<\/mark> |<\/p>\n<p>+&#8212;&#8212;&#8212;&#8211;+&#8212;&#8212;&#8212;&#8212;+&#8212;&#8212;&#8212;&#8211;+<\/p>\n<p>10 rows in set (0.000 sec)<\/p>\n<pre class=\"post-pre\"><code><\/code><\/pre>\n<p>\u7136\u800c\uff0c\u8fd9\u4e00\u6b21\uff0c\u7ed3\u679c\u4e2d\u51fa\u73b0\u4e86<code>member_id<\/code>\u5217\uff0c\u5176\u4e2d\u5305\u542b\u4ece1\u523010\u7684\u6570\u5b57\u5e8f\u5217\u3002\u6709\u4e86\u8fd9\u4e00\u5217\uff0cJane Smith\u548cBob Johnson\u7684\u91cd\u590d\u884c\u4e0d\u518d\u65e0\u6cd5\u533a\u5206\uff0c\u56e0\u4e3a\u6bcf\u4e2a\u59d3\u540d\u90fd\u4e0e\u4e00\u4e2a\u552f\u4e00\u6807\u8bc6\u7b26\uff08<code>member_id<\/code>\uff09\u76f8\u5173\u8054\u3002<\/p>\n<p>\u73b0\u5728\uff0c\u8ba9\u6211\u4eec\u6765\u9a8c\u8bc1\u4e00\u4e0b\u6570\u636e\u5e93\u662f\u5426\u5141\u8bb8\u5c06\u53e6\u4e00\u4e2a\u6c64\u59c6\u00b7\u6c64\u666e\u68ee\u6dfb\u52a0\u5230\u4ff1\u4e50\u90e8\u4f1a\u5458\u540d\u5355\u4e2d\u3002<\/p>\n<pre class=\"post-pre\"><code><\/code><\/pre>\n<ol>\n<li data-prefix=\"mysql&gt;\">INSERT INTO club_members <span class=\"token punctuation\">(<\/span>first_name, last_name<span class=\"token punctuation\">)<\/span> VALUES <span class=\"token punctuation\">(<\/span><span class=\"token string\">&#8216;<mark>Tom<\/mark>&#8216;<\/span>, <span class=\"token string\">&#8216;<mark>Thompson<\/mark>&#8216;<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/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>MySQL\u4f1a\u4ee5\u6210\u529f\u6d88\u606f\u8fdb\u884c\u56de\u5e94\u3002<\/p>\n<pre class=\"post-pre\"><code><\/code><\/pre>\n<div class=\"secondary-code-label\" title=\"Output\">\u8f93\u51fa<\/div>\n<p>\u8fd9\u662f\u6587\u7ae0\u300a\u5982\u4f55\u5728SQL\u4e2d\u4f7f\u7528\u4e3b\u952e\u300b\u7684\u7b2c8\u90e8\u5206\uff08\u51718\u90e8\u5206\uff09\u3002<\/p>\n<pre class=\"post-pre\"><code><\/code><\/pre>\n<p>Query OK, 1 row affected (0.009 sec)<\/p>\n<pre class=\"post-pre\"><code><\/code><\/pre>\n<p>\u8981\u67e5\u770b\u6570\u636e\u5e93\u4e3a\u65b0\u6761\u76ee\u5206\u914d\u7684\u6570\u5b57\u6807\u8bc6\u7b26\uff0c\u8bf7\u518d\u6b21\u6267\u884c<code>SELECT<\/code>\u67e5\u8be2\u3002<\/p>\n<pre class=\"post-pre\"><code><\/code><\/pre>\n<ol>\n<li data-prefix=\"mysql&gt;\"><code>SELECT * FROM club_members;<\/code><\/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\u4e2d\u591a\u4e86\u4e00\u884c\u3002<\/p>\n<pre class=\"post-pre\"><code><\/code><\/pre>\n<div class=\"secondary-code-label\" title=\"Output\">\u8f93\u51fa<\/p>\n<pre class=\"post-pre\"><code><\/code><\/pre>\n<p>+&#8212;&#8212;&#8212;&#8211;+&#8212;&#8212;&#8212;&#8212;+&#8212;&#8212;&#8212;&#8211;+<\/p>\n<p>| member_id | first_name | last_name |<\/p>\n<p>+&#8212;&#8212;&#8212;&#8211;+&#8212;&#8212;&#8212;&#8212;+&#8212;&#8212;&#8212;&#8211;+<\/p>\n<p>| 1 | John | Doe |<\/p>\n<p>| 2 | Jane | Smith |<\/p>\n<p>| 3 | Bob | Johnson |<\/p>\n<p>| 4 | Samantha | Davis |<\/p>\n<p>| 5 | Michael | Rodriguez |<\/p>\n<p>| 6 | Tom | Thompson |<\/p>\n<p>| 7 | Sara | Johnson |<\/p>\n<p>| 8 | David | Jones |<\/p>\n<p>| 9 | Jane | Smith |<\/p>\n<p>| 10 | Bob | Johnson |<\/p>\n<p>| <mark>11<\/mark> | <mark>Tom<\/mark> | <mark>Thompson<\/mark> |<\/p>\n<p>+&#8212;&#8212;&#8212;&#8211;+&#8212;&#8212;&#8212;&#8212;+&#8212;&#8212;&#8212;&#8211;+<\/p>\n<p>11 rows in set (0.000 sec)<\/p>\n<pre class=\"post-pre\"><code><\/code><\/pre>\n<\/div>\n<p>\u901a\u8fc7\u6570\u636e\u5e93\u7684<code>AUTO_INCREMENT<\/code>\u7279\u6027\uff0c\u81ea\u52a8\u4e3a<code>member_id<\/code>\u5217\u5206\u914d\u4e86\u7f16\u53f7\u4e3a11\u7684\u65b0\u884c\u3002<\/p>\n<p>\u5982\u679c\u4f60\u6b63\u5728\u5904\u7406\u7684\u6570\u636e\u6ca1\u6709\u81ea\u7136\u7684\u5019\u9009\u4e3b\u952e\uff0c\u5e76\u4e14\u4f60\u4e0d\u60f3\u6bcf\u6b21\u5411\u6570\u636e\u5e93\u6dfb\u52a0\u65b0\u6570\u636e\u65f6\u63d0\u4f9b\u865a\u6784\u7684\u6807\u8bc6\u7b26\uff0c\u90a3\u4e48\u4f60\u53ef\u4ee5\u5b89\u5168\u5730\u4f9d\u8d56\u4e8e\u987a\u5e8f\u751f\u6210\u7684\u6807\u8bc6\u7b26\u4f5c\u4e3a\u4e3b\u952e\u3002<\/p>\n<h2>\u7ed3\u8bba<\/h2>\n<p>\u901a\u8fc7\u9075\u5faa\u672c\u6307\u5357\uff0c\u4f60\u5b66\u4f1a\u4e86\u4ec0\u4e48\u662f\u4e3b\u952e\u4ee5\u53ca\u5982\u4f55\u5728MySQL\u4e2d\u521b\u5efa\u5e38\u89c1\u7c7b\u578b\u7684\u4e3b\u952e\uff0c\u4ee5\u4fbf\u5728\u6570\u636e\u5e93\u8868\u4e2d\u6807\u8bc6\u552f\u4e00\u884c\u3002\u4f60\u521b\u5efa\u4e86\u81ea\u7136\u4e3b\u952e\uff0c\u521b\u5efa\u4e86\u8de8\u591a\u5217\u7684\u4e3b\u952e\uff0c\u5e76\u5728\u6ca1\u6709\u81ea\u7136\u4e3b\u952e\u7684\u60c5\u51b5\u4e0b\u4f7f\u7528\u4e86\u81ea\u589e\u5e8f\u5217\u952e\u3002<\/p>\n<p>\u60a8\u53ef\u4ee5\u4f7f\u7528\u4e3b\u952e\u6765\u8fdb\u4e00\u6b65\u5b9a\u4e49\u6570\u636e\u5e93\u7ed3\u6784\uff0c\u4ee5\u786e\u4fdd\u6570\u636e\u884c\u80fd\u591f\u552f\u4e00\u6807\u8bc6\u3002\u672c\u6559\u7a0b\u53ea\u6db5\u76d6\u4e86\u4f7f\u7528\u4e3b\u952e\u7684\u57fa\u7840\u77e5\u8bc6\u3002\u8981\u4e86\u89e3\u66f4\u591a\u76f8\u5173\u4fe1\u606f\uff0c\u8bf7\u53c2\u8003MySQL\u5173\u4e8e\u7ea6\u675f\u7684\u6587\u6863\u3002\u60a8\u8fd8\u53ef\u4ee5\u67e5\u9605\u6211\u4eec\u7684<a href=\"#\">SQL\u7ea6\u675f\u7406\u89e3\u6307\u5357<\/a>\u548c<a href=\"#\">\u5982\u4f55\u5728SQL\u4e2d\u4f7f\u7528\u7ea6\u675f\u7684\u6307\u5357<\/a>\u3002<\/p>\n<p>\u5982\u679c\u60a8\u60f3\u66f4\u591a\u4e86\u89e3\u5173\u4e8eSQL\u8bed\u8a00\u7684\u4e0d\u540c\u6982\u5ff5\u548c\u4e0e\u4e4b\u76f8\u5173\u7684\u64cd\u4f5c\u6280\u5de7\uff0c\u6211\u4eec\u9f13\u52b1\u60a8\u67e5\u770b\u300a\u5982\u4f55\u4f7f\u7528SQL\u7cfb\u5217\u300b\u4e2d\u7684\u5176\u4ed6\u6307\u5357\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u5f15\u8a00 \u5173\u7cfb\u578b\u6570\u636e\u5e93\u7684\u4e00\u4e2a\u91cd\u8981\u7279\u6027\u662f\u80fd\u591f\u5c06\u6570\u636e\u5851\u9020\u6210\u4e00\u4e2a\u660e\u786e\u5b9a\u4e49\u7684\u7ed3\u6784\u3002\u8fd9\u79cd\u7ed3\u6784\u901a\u8fc7\u4f7f\u7528\u5177\u6709\u56fa\u5b9a\u5217\u3001\u4e25\u683c\u5b9a\u4e49\u7684\u6570 [&hellip;]<\/p>\n","protected":false},"author":10,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[261,263,262,264,257],"class_list":["post-22","post","type-post","status-publish","format-standard","hentry","category-uncategorized","tag-sql","tag-263","tag-262","tag-264","tag-257"],"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>SQL\u4e3b\u952e\u8be6\u89e3\uff1a\u521b\u5efa\u3001\u4f7f\u7528\u4e0e\u7ba1\u7406\u7ec8\u6781\u6307\u5357 - Blog - Silicon Cloud<\/title>\n<meta name=\"description\" content=\"\u6df1\u5165\u5b66\u4e60SQL\u4e3b\u952e\uff08PRIMARY 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