{"id":779,"date":"2025-01-06T21:54:33","date_gmt":"2025-01-06T13:54:33","guid":{"rendered":"https:\/\/www.laixuexila.com\/?p=779"},"modified":"2025-01-11T16:15:47","modified_gmt":"2025-01-11T08:15:47","slug":"%e9%ab%98%e8%b4%a8%e9%87%8f%e7%9a%84-sql-%e8%af%ad%e5%8f%a5%ef%bc%8c%e9%80%9a%e5%b8%b8%e9%9c%80%e8%a6%81%e6%b3%a8%e6%84%8f%e5%93%aa%e4%ba%9b%e5%85%b3%e9%94%ae%e6%96%b9%e9%9d%a2","status":"publish","type":"post","link":"https:\/\/www.laixuexila.com\/index.php\/2025\/01\/06\/%e9%ab%98%e8%b4%a8%e9%87%8f%e7%9a%84-sql-%e8%af%ad%e5%8f%a5%ef%bc%8c%e9%80%9a%e5%b8%b8%e9%9c%80%e8%a6%81%e6%b3%a8%e6%84%8f%e5%93%aa%e4%ba%9b%e5%85%b3%e9%94%ae%e6%96%b9%e9%9d%a2\/","title":{"rendered":"\u7f16\u5199\u9ad8\u8d28\u91cf SQL \u8bed\u53e5\u7684\u5173\u952e\u8981\u7d20\uff1a\u63d0\u5347\u6548\u7387\u4e0e\u6027\u80fd\u7684\u6280\u5de7"},"content":{"rendered":"\n<blockquote class=\"wp-block-quote is-layout-flow wp-block-quote-is-layout-flow\">\n<p class=\"wp-block-paragraph\">\u5199\u51fa\u9ad8\u8d28\u91cf\u7684 SQL \u8bed\u53e5\uff0c\u4e0d\u4ec5\u8981\u5173\u6ce8\u5176\u529f\u80fd\u6b63\u786e\u6027\uff0c\u8fd8\u8981\u6ce8\u91cd\u5176\u6027\u80fd\u3001\u53ef\u8bfb\u6027\u548c\u53ef\u7ef4\u62a4\u6027\u3002\u9ad8\u8d28\u91cf\u7684 SQL \u8bed\u53e5\u5728\u6570\u636e\u91cf\u5927\u3001\u5e76\u53d1\u9ad8\u7684\u60c5\u51b5\u4e0b\uff0c\u4f9d\u7136\u80fd\u9ad8\u6548\u3001\u7a33\u5b9a\u5730\u8fd0\u884c\u3002\u4ee5\u4e0b\u662f\u5199\u51fa\u9ad8\u8d28\u91cf SQL \u8bed\u53e5\u65f6\u9700\u8981\u6ce8\u610f\u7684\u51e0\u4e2a\u5173\u952e\u65b9\u9762\uff1a<\/p>\n<\/blockquote>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h3 class=\"wp-block-heading\">1. <strong>\u6027\u80fd\u4f18\u5316<\/strong><\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>\u4f7f\u7528\u7d22\u5f15<\/strong>\uff1a\n<ul class=\"wp-block-list\">\n<li>\u5bf9\u7ecf\u5e38\u7528\u4e8e <code>WHERE<\/code>\u3001<code>JOIN<\/code>\u3001<code>ORDER BY<\/code> \u548c <code>GROUP BY<\/code> \u7684\u5b57\u6bb5\u5efa\u7acb\u7d22\u5f15\uff0c\u907f\u514d\u5168\u8868\u626b\u63cf\u3002<\/li>\n\n\n\n<li>\u5728\u9009\u62e9\u5b57\u6bb5\u65f6\uff0c\u5c3d\u91cf\u907f\u514d\u4f7f\u7528\u6ca1\u6709\u7d22\u5f15\u7684\u5b57\u6bb5\u8fdb\u884c\u8fc7\u6ee4\u3002<\/li>\n<\/ul>\n<\/li>\n\n\n\n<li><strong>\u907f\u514d\u4f7f\u7528 <code>SELECT *<\/code><\/strong>\uff1a\n<ul class=\"wp-block-list\">\n<li>\u907f\u514d\u67e5\u8be2\u4e0d\u5fc5\u8981\u7684\u5217\uff0c<code>SELECT *<\/code> \u4f1a\u8fd4\u56de\u6240\u6709\u5217\uff0c\u53ef\u80fd\u5bfc\u81f4\u4e0d\u5fc5\u8981\u7684 I\/O \u5f00\u9500\u3002\u53ea\u67e5\u8be2\u6240\u9700\u7684\u5217\uff0c\u63d0\u5347\u6548\u7387\u3002<\/li>\n<\/ul>\n<\/li>\n\n\n\n<li><strong>\u5408\u7406\u4f7f\u7528 <code>JOIN<\/code><\/strong>\uff1a\n<ul class=\"wp-block-list\">\n<li>\u4f7f\u7528\u5185\u8fde\u63a5\uff08<code>INNER JOIN<\/code>\uff09\u65f6\uff0c\u8981\u786e\u4fdd\u8fde\u63a5\u7684\u5b57\u6bb5\u90fd\u6709\u7d22\u5f15\uff0c\u5e76\u4e14\u4f7f\u7528 <code>ON<\/code> \u6761\u4ef6\u8fdb\u884c\u8fde\u63a5\uff0c\u907f\u514d\u7b1b\u5361\u5c14\u79ef\uff08Cartesian Product\uff09\u3002<\/li>\n\n\n\n<li>\u5bf9\u4e8e\u591a\u8868\u8fde\u63a5\uff0c\u8003\u8651\u5408\u9002\u7684\u8fde\u63a5\u987a\u5e8f\uff0c\u4f18\u5148\u8fde\u63a5\u8fd4\u56de\u8bb0\u5f55\u8f83\u5c11\u7684\u8868\uff0c\u51cf\u5c11\u4e2d\u95f4\u7ed3\u679c\u96c6\u7684\u5927\u5c0f\u3002<\/li>\n<\/ul>\n<\/li>\n\n\n\n<li><strong>\u907f\u514d\u4e0d\u5fc5\u8981\u7684\u5d4c\u5957\u67e5\u8be2<\/strong>\uff1a\n<ul class=\"wp-block-list\">\n<li>\u907f\u514d\u4f7f\u7528\u8fc7\u591a\u7684\u5d4c\u5957\u67e5\u8be2\uff08\u5b50\u67e5\u8be2\uff09\uff0c\u5c3d\u91cf\u5c06\u5176\u8f6c\u6362\u4e3a\u8054\u63a5\uff08JOIN\uff09\u6216\u4f7f\u7528\u4e34\u65f6\u8868\u3002<\/li>\n<\/ul>\n<\/li>\n\n\n\n<li><strong>\u4f7f\u7528\u5408\u9002\u7684\u9650\u5236\u548c\u5206\u9875<\/strong>\uff1a\n<ul class=\"wp-block-list\">\n<li>\u5728\u67e5\u8be2\u65f6\u4f7f\u7528 <code>LIMIT<\/code> \u6216\u7c7b\u4f3c\u7684\u5206\u9875\u6280\u672f\uff0c\u907f\u514d\u4e00\u6b21\u6027\u8fd4\u56de\u8fc7\u591a\u6570\u636e\uff0c\u51cf\u5c11\u7f51\u7edc\u5e26\u5bbd\u548c\u6570\u636e\u5e93\u8d1f\u62c5\u3002<\/li>\n<\/ul>\n<\/li>\n\n\n\n<li><strong>\u4f18\u5316\u6392\u5e8f\u64cd\u4f5c<\/strong>\uff1a\n<ul class=\"wp-block-list\">\n<li>\u5bf9\u9700\u8981\u6392\u5e8f\u7684\u5b57\u6bb5\u5efa\u7acb\u7d22\u5f15\uff0c\u907f\u514d\u6392\u5e8f\u65f6\u8fdb\u884c\u5168\u8868\u626b\u63cf\u3002<\/li>\n\n\n\n<li>\u4f7f\u7528 <code>ORDER BY<\/code> \u65f6\uff0c\u786e\u4fdd\u6392\u5e8f\u5217\u4e0a\u6709\u7d22\u5f15\uff0c\u5426\u5219\u4f1a\u5bfc\u81f4\u6027\u80fd\u95ee\u9898\u3002<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h3 class=\"wp-block-heading\">2. <strong>\u7b80\u6d01\u6027\u548c\u53ef\u8bfb\u6027<\/strong><\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>\u6e05\u6670\u7684\u547d\u540d<\/strong>\uff1a\n<ul class=\"wp-block-list\">\n<li>\u8868\u540d\u548c\u5217\u540d\u8981\u6709\u610f\u4e49\uff0c\u9075\u5faa\u4e00\u81f4\u7684\u547d\u540d\u89c4\u8303\u3002\u907f\u514d\u4f7f\u7528\u6a21\u7cca\u7684\u540d\u79f0\uff08\u5982 <code>a<\/code>, <code>b<\/code>\uff09\uff0c\u800c\u5e94\u4f7f\u7528\u5177\u6709\u4e1a\u52a1\u542b\u4e49\u7684\u540d\u5b57\uff08\u5982 <code>user_id<\/code>, <code>created_at<\/code>\uff09\u3002<\/li>\n<\/ul>\n<\/li>\n\n\n\n<li><strong>\u5408\u7406\u7684\u683c\u5f0f\u5316<\/strong>\uff1a\n<ul class=\"wp-block-list\">\n<li>\u9002\u5f53\u7684\u7f29\u8fdb\u548c\u6362\u884c\uff0c\u786e\u4fdd SQL \u8bed\u53e5\u7ed3\u6784\u6e05\u6670\u3002\u4f8b\u5982\uff0c\u957f\u67e5\u8be2\u53ef\u4ee5\u5c06 <code>SELECT<\/code>\u3001<code>FROM<\/code>\u3001<code>WHERE<\/code> \u7b49\u5173\u952e\u5b57\u5206\u884c\u663e\u793a\u3002<\/li>\n\n\n\n<li>\u5bf9\u4e8e\u591a\u8868\u8fde\u63a5\u6216\u590d\u6742\u67e5\u8be2\uff0c\u4f7f\u7528\u6362\u884c\u4f7f\u5404\u4e2a\u90e8\u5206\u6e05\u6670\u5206\u5f00\uff0c\u4fbf\u4e8e\u7ef4\u62a4\u3002<\/li>\n\n\n\n<li>\u4f8b\u5982\uff1a<br><code>sql SELECT name, age FROM users WHERE age > 25 AND status = 'active' ORDER BY name;<\/code><\/li>\n<\/ul>\n<\/li>\n\n\n\n<li><strong>\u6ce8\u91ca<\/strong>\uff1a\n<ul class=\"wp-block-list\">\n<li>\u5bf9\u590d\u6742\u7684 SQL \u67e5\u8be2\u6dfb\u52a0\u6ce8\u91ca\uff0c\u5c24\u5176\u662f\u5728\u6d89\u53ca\u590d\u6742\u7684\u4e1a\u52a1\u903b\u8f91\u3001JOIN \u64cd\u4f5c\u6216\u7279\u5b9a\u6761\u4ef6\u65f6\u3002\u6ce8\u91ca\u53ef\u4ee5\u5e2e\u52a9\u4ed6\u4eba\u7406\u89e3\u4f60\u7684\u610f\u56fe\uff0c\u5e76\u63d0\u9ad8\u53ef\u7ef4\u62a4\u6027\u3002<\/li>\n\n\n\n<li>\u5982\uff1a<br><code>sql -- \u83b7\u53d6\u5e74\u9f84\u5927\u4e8e25\u5c81\u7684\u6240\u6709\u6d3b\u8dc3\u7528\u6237 SELECT name, age FROM users WHERE age > 25 AND status = 'active' ORDER BY name;<\/code><\/li>\n<\/ul>\n<\/li>\n<\/ul>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h3 class=\"wp-block-heading\">3. <strong>\u907f\u514d\u5197\u4f59\u548c\u4e0d\u5fc5\u8981\u7684\u8ba1\u7b97<\/strong><\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>\u907f\u514d\u591a\u4f59\u7684\u8ba1\u7b97<\/strong>\uff1a\n<ul class=\"wp-block-list\">\n<li>\u4e0d\u8981\u5728\u67e5\u8be2\u4e2d\u91cd\u590d\u8ba1\u7b97\u540c\u4e00\u8868\u8fbe\u5f0f\uff0c\u5c24\u5176\u662f\u5bf9\u4e8e\u6027\u80fd\u654f\u611f\u7684\u67e5\u8be2\u3002\u4f8b\u5982\uff0c\u907f\u514d\u5728 <code>SELECT<\/code> \u6216 <code>WHERE<\/code> \u5b50\u53e5\u4e2d\u91cd\u590d\u8ba1\u7b97 <code>LENGTH(name)<\/code> \u6216\u7c7b\u4f3c\u7684\u51fd\u6570\u3002<\/li>\n<\/ul>\n<\/li>\n\n\n\n<li><strong>\u907f\u514d\u591a\u6b21\u8bbf\u95ee\u540c\u4e00\u6570\u636e<\/strong>\uff1a\n<ul class=\"wp-block-list\">\n<li>\u5728\u590d\u6742\u67e5\u8be2\u4e2d\uff0c\u907f\u514d\u591a\u6b21\u5bf9\u540c\u4e00\u8868\u8fdb\u884c\u67e5\u8be2\u6216\u8ba1\u7b97\uff0c\u5c3d\u91cf\u5c06\u5176\u7ed3\u679c\u4fdd\u5b58\u5230\u4e34\u65f6\u8868\u6216\u5b50\u67e5\u8be2\u4e2d\uff0c\u51cf\u5c11\u91cd\u590d\u8ba1\u7b97\u3002<\/li>\n<\/ul>\n<\/li>\n\n\n\n<li><strong>\u907f\u514d\u4e0d\u5fc5\u8981\u7684\u6570\u636e\u7c7b\u578b\u8f6c\u6362<\/strong>\uff1a\n<ul class=\"wp-block-list\">\n<li>\u5c3d\u91cf\u907f\u514d\u5728\u67e5\u8be2\u4e2d\u5bf9\u6570\u636e\u8fdb\u884c\u7c7b\u578b\u8f6c\u6362\uff0c\u5c24\u5176\u662f\u5728\u5bf9\u6570\u503c\u578b\u5b57\u6bb5\u4f7f\u7528\u5b57\u7b26\u4e32\u51fd\u6570\u65f6\uff0c\u53ef\u80fd\u5bfc\u81f4\u6027\u80fd\u4e0b\u964d\u3002<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h3 class=\"wp-block-heading\">4. <strong>\u6570\u636e\u5b8c\u6574\u6027\u548c\u4e00\u81f4\u6027<\/strong><\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>\u4f7f\u7528\u7ea6\u675f<\/strong>\uff1a\n<ul class=\"wp-block-list\">\n<li>\u5728\u6570\u636e\u5e93\u8bbe\u8ba1\u65f6\u4f7f\u7528\u5408\u9002\u7684\u7ea6\u675f\uff08\u5982 <code>PRIMARY KEY<\/code>\u3001<code>FOREIGN KEY<\/code>\u3001<code>UNIQUE<\/code> \u7b49\uff09\uff0c\u786e\u4fdd\u6570\u636e\u7684\u5b8c\u6574\u6027\u548c\u4e00\u81f4\u6027\u3002<\/li>\n<\/ul>\n<\/li>\n\n\n\n<li><strong>\u4fdd\u8bc1\u4e8b\u52a1\u7684\u539f\u5b50\u6027<\/strong>\uff1a\n<ul class=\"wp-block-list\">\n<li>\u5728\u6d89\u53ca\u591a\u4e2a\u8868\u66f4\u65b0\u7684\u64cd\u4f5c\u4e2d\uff0c\u4f7f\u7528\u4e8b\u52a1\u6765\u4fdd\u8bc1\u6570\u636e\u7684\u4e00\u81f4\u6027\u3002\u4f7f\u7528 <code>BEGIN TRANSACTION<\/code>\u3001<code>COMMIT<\/code>\u3001<code>ROLLBACK<\/code> \u7b49\u8bed\u53e5\u6765\u63a7\u5236\u4e8b\u52a1\uff0c\u786e\u4fdd\u64cd\u4f5c\u7684\u539f\u5b50\u6027\u3002<\/li>\n<\/ul>\n<\/li>\n\n\n\n<li><strong>\u5b9a\u671f\u4f18\u5316\u6570\u636e\u5e93<\/strong>\uff1a\u901a\u8fc7\u00a0<code>OPTIMIZE<\/code>\u00a0\u6216\u00a0<code>ANALYZE<\/code>\u00a0\u7b49\u64cd\u4f5c\uff0c\u5b9a\u671f\u5bf9\u8868\u548c\u7d22\u5f15\u8fdb\u884c\u4f18\u5316\u3002<\/li>\n<\/ul>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h3 class=\"wp-block-heading\">5. <strong>\u907f\u514d\u6b7b\u9501<\/strong><\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>\u5408\u7406\u4f7f\u7528\u9501<\/strong>\uff1a\n<ul class=\"wp-block-list\">\n<li>\u5728\u5e76\u53d1\u60c5\u51b5\u4e0b\uff0c\u5408\u7406\u4f7f\u7528 <code>FOR UPDATE<\/code> \u9501\u5b9a\u884c\u6570\u636e\uff0c\u907f\u514d\u8fc7\u957f\u65f6\u95f4\u6301\u6709\u9501\uff0c\u4ece\u800c\u907f\u514d\u6b7b\u9501\u3002<\/li>\n<\/ul>\n<\/li>\n\n\n\n<li><strong>\u9501\u5b9a\u987a\u5e8f<\/strong>\uff1a\n<ul class=\"wp-block-list\">\n<li>\u5728\u591a\u8868\u64cd\u4f5c\u4e2d\uff0c\u786e\u4fdd\u9501\u7684\u987a\u5e8f\u4e00\u81f4\uff0c\u4ee5\u9632\u6b62\u6b7b\u9501\u7684\u53d1\u751f\u3002<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h3 class=\"wp-block-heading\">6. <strong>\u9002\u5f53\u7684\u6570\u636e\u5e93\u8bbe\u8ba1<\/strong><\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>\u89c4\u8303\u5316\u548c\u53cd\u89c4\u8303\u5316<\/strong>\uff1a\n<ul class=\"wp-block-list\">\n<li>\u5728\u8bbe\u8ba1\u6570\u636e\u5e93\u65f6\uff0c\u8003\u8651\u5408\u7406\u7684\u8868\u7ed3\u6784\u548c\u89c4\u8303\u5316\uff0c\u907f\u514d\u6570\u636e\u5197\u4f59\u3002\u4f46\u5728\u67d0\u4e9b\u9ad8\u6027\u80fd\u9700\u6c42\u4e0b\uff0c\u53ef\u4ee5\u4f7f\u7528\u9002\u5f53\u7684\u53cd\u89c4\u8303\u5316\u6765\u4f18\u5316\u67e5\u8be2\u6027\u80fd\u3002<\/li>\n<\/ul>\n<\/li>\n\n\n\n<li><strong>\u5206\u533a\u548c\u5206\u8868<\/strong>\uff1a\n<ul class=\"wp-block-list\">\n<li>\u5bf9\u4e8e\u975e\u5e38\u5927\u7684\u6570\u636e\u8868\uff0c\u4f7f\u7528\u8868\u5206\u533a\uff08Partition\uff09\u6216\u5206\u8868\uff08Sharding\uff09\u6280\u672f\uff0c\u53ef\u4ee5\u63d0\u5347\u67e5\u8be2\u6548\u7387\u548c\u7ba1\u7406\u7684\u4fbf\u6377\u6027\u3002<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h3 class=\"wp-block-heading\">7. <strong>\u53ef\u7ef4\u62a4\u6027<\/strong><\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>\u4f7f\u7528\u89c6\u56fe\uff08VIEW\uff09\u548c\u5b58\u50a8\u8fc7\u7a0b\uff08Stored Procedure\uff09<\/strong>\uff1a\n<ul class=\"wp-block-list\">\n<li>\u5c06\u590d\u6742\u7684\u67e5\u8be2\u6216\u4e1a\u52a1\u903b\u8f91\u5c01\u88c5\u6210\u89c6\u56fe\u6216\u5b58\u50a8\u8fc7\u7a0b\uff0c\u63d0\u9ad8 SQL \u8bed\u53e5\u7684\u91cd\u7528\u6027\u548c\u53ef\u7ef4\u62a4\u6027\u3002<\/li>\n\n\n\n<li>\u5b58\u50a8\u8fc7\u7a0b\u80fd\u591f\u5c06\u903b\u8f91\u4e0e SQL \u89e3\u8026\uff0c\u63d0\u5347\u53ef\u7ef4\u62a4\u6027\uff0c\u907f\u514d\u5728\u591a\u4e2a\u5730\u65b9\u91cd\u590d\u7f16\u5199\u76f8\u540c\u7684 SQL \u4ee3\u7801\u3002<\/li>\n<\/ul>\n<\/li>\n\n\n\n<li><strong>\u4ee3\u7801\u91cd\u6784<\/strong>\uff1a\n<ul class=\"wp-block-list\">\n<li>\u5b9a\u671f\u5ba1\u67e5\u548c\u91cd\u6784 SQL \u4ee3\u7801\uff0c\u5c24\u5176\u662f\u5728\u6570\u636e\u5e93\u8bbe\u8ba1\u6216\u6570\u636e\u91cf\u53d8\u5316\u540e\uff0c\u786e\u4fdd\u67e5\u8be2\u8bed\u53e5\u7684\u6027\u80fd\u548c\u53ef\u8bfb\u6027\u3002<\/li>\n<\/ul>\n<\/li>\n\n\n\n<li><strong>\u5206\u79bb\u67e5\u8be2\u4e0e\u4e1a\u52a1\u903b\u8f91<\/strong>\uff1a\n<ul class=\"wp-block-list\">\n<li>\u907f\u514d\u5c06\u590d\u6742\u7684\u4e1a\u52a1\u903b\u8f91\u5d4c\u5165\u5230 SQL \u8bed\u53e5\u4e2d\u3002\u6bd4\u5982\uff0c\u5c3d\u91cf\u5c06\u6570\u636e\u5904\u7406\u903b\u8f91\u653e\u5230\u5e94\u7528\u5c42\uff0c\u907f\u514d SQL \u8bed\u53e5\u8fc7\u4e8e\u590d\u6742\u3002<\/li>\n<\/ul>\n<\/li>\n\n\n\n<li><strong>\u4f7f\u7528\u51fd\u6570<\/strong>\uff1a\n<ul class=\"wp-block-list\">\n<li>\u5bf9\u4e8e\u590d\u6742\u7684\u67e5\u8be2\uff0c\u9664\u4e86\u4f7f\u7528\u89c6\u56fe\uff08<code>VIEW<\/code>\uff09\u3001\u5b58\u50a8\u8fc7\u7a0b\uff08<code>PROCEDURE<\/code>\uff09\u5916\uff0c\u8fd8\u9700\u8981\u4f7f\u7528\u51fd\u6570\uff08<code>FUNCTION<\/code>\uff09\u6765\u5c01\u88c5\u5e38\u7528\u7684 SQL \u903b\u8f91\uff0c\u63d0\u9ad8\u53ef\u590d\u7528\u6027\u548c\u53ef\u7ef4\u62a4\u6027\u3002<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h3 class=\"wp-block-heading\">8. <strong>\u8de8\u5e73\u53f0\u517c\u5bb9\u6027<\/strong><\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>\u907f\u514d\u4f7f\u7528\u6570\u636e\u5e93\u5382\u5546\u7279\u6709\u7684\u8bed\u6cd5<\/strong>\uff1a\n<ul class=\"wp-block-list\">\n<li>\u5c3d\u91cf\u9075\u5faa\u6807\u51c6 SQL\uff0c\u907f\u514d\u4f7f\u7528\u67d0\u4e9b\u6570\u636e\u5e93\u5382\u5546\u7279\u6709\u7684\u6269\u5c55\uff0c\u9664\u975e\u7edd\u5bf9\u5fc5\u8981\u3002\u8fd9\u6709\u52a9\u4e8e SQL \u8bed\u53e5\u5728\u4e0d\u540c\u6570\u636e\u5e93\u7cfb\u7edf\u95f4\u7684\u8fc1\u79fb\u3002<\/li>\n<\/ul>\n<\/li>\n\n\n\n<li><strong>\u7248\u672c\u63a7\u5236<\/strong>\uff1a\n<ul class=\"wp-block-list\">\n<li>\u4f7f\u7528\u7248\u672c\u63a7\u5236\u6765\u7ba1\u7406\u6570\u636e\u5e93\u7684 SQL \u811a\u672c\uff0c\u786e\u4fdd\u4e0d\u540c\u7248\u672c\u7684\u6570\u636e\u5e93\u7ed3\u6784\u548c\u6570\u636e\u64cd\u4f5c\u4e00\u81f4\u6027\u3002<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h3 class=\"wp-block-heading\">\u5c0f\u7ed3<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">\u9ad8\u8d28\u91cf\u7684 SQL \u8bed\u53e5\u5e94\u8be5\u5177\u5907\uff1a<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>\u9ad8\u6027\u80fd<\/strong>\uff1a\u80fd\u591f\u5feb\u901f\u5904\u7406\u5927\u91cf\u6570\u636e\uff0c\u907f\u514d\u4e0d\u5fc5\u8981\u7684\u8ba1\u7b97\u548c\u67e5\u8be2\u64cd\u4f5c\u3002<\/li>\n\n\n\n<li><strong>\u6e05\u6670\u7b80\u6d01<\/strong>\uff1a\u8bed\u6cd5\u7b80\u6d01\u660e\u4e86\uff0c\u5bb9\u6613\u7406\u89e3\u548c\u7ef4\u62a4\u3002<\/li>\n\n\n\n<li><strong>\u53ef\u9760\u6027<\/strong>\uff1a\u786e\u4fdd\u6570\u636e\u7684\u5b8c\u6574\u6027\u3001\u4e00\u81f4\u6027\uff0c\u907f\u514d\u9519\u8bef\u548c\u6f5c\u5728\u95ee\u9898\u3002<\/li>\n\n\n\n<li><strong>\u53ef\u7ef4\u62a4\u6027<\/strong>\uff1a\u4fbf\u4e8e\u65e5\u540e\u4fee\u6539\u548c\u6269\u5c55\u3002<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">\u901a\u8fc7\u4e0d\u65ad\u5b66\u4e60 SQL \u4f18\u5316\u6280\u5de7\u3001\u6570\u636e\u5e93\u8bbe\u8ba1\u539f\u7406\uff0c\u5e76\u6839\u636e\u5b9e\u9645\u573a\u666f\u8fdb\u884c\u8c03\u4f18\uff0c\u53ef\u4ee5\u9010\u6b65\u63d0\u5347 SQL \u8bed\u53e5\u7684\u8d28\u91cf\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u5199\u51fa\u9ad8\u8d28\u91cf\u7684 SQL \u8bed\u53e5\uff0c\u4e0d\u4ec5\u8981\u5173\u6ce8\u5176\u529f\u80fd\u6b63\u786e\u6027\uff0c\u8fd8\u8981\u6ce8\u91cd\u5176\u6027\u80fd\u3001\u53ef\u8bfb\u6027\u548c\u53ef\u7ef4\u62a4\u6027\u3002\u9ad8\u8d28\u91cf\u7684 SQL \u8bed\u53e5\u5728 [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[36],"tags":[],"class_list":["post-779","post","type-post","status-publish","format-standard","hentry","category-sql"],"_links":{"self":[{"href":"https:\/\/www.laixuexila.com\/index.php\/wp-json\/wp\/v2\/posts\/779","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.laixuexila.com\/index.php\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.laixuexila.com\/index.php\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.laixuexila.com\/index.php\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.laixuexila.com\/index.php\/wp-json\/wp\/v2\/comments?post=779"}],"version-history":[{"count":2,"href":"https:\/\/www.laixuexila.com\/index.php\/wp-json\/wp\/v2\/posts\/779\/revisions"}],"predecessor-version":[{"id":899,"href":"https:\/\/www.laixuexila.com\/index.php\/wp-json\/wp\/v2\/posts\/779\/revisions\/899"}],"wp:attachment":[{"href":"https:\/\/www.laixuexila.com\/index.php\/wp-json\/wp\/v2\/media?parent=779"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.laixuexila.com\/index.php\/wp-json\/wp\/v2\/categories?post=779"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.laixuexila.com\/index.php\/wp-json\/wp\/v2\/tags?post=779"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}