{"id":3728,"date":"2025-05-18T23:09:42","date_gmt":"2025-05-18T15:09:42","guid":{"rendered":"https:\/\/www.laixuexila.com\/?p=3728"},"modified":"2025-05-19T23:36:20","modified_gmt":"2025-05-19T15:36:20","slug":"mysql-%e4%b8%ad%e4%bd%bf%e7%94%a8%e8%a7%86%e5%9b%be%e7%9a%84%e5%b1%80%e9%99%90%e6%80%a7","status":"publish","type":"post","link":"https:\/\/www.laixuexila.com\/index.php\/2025\/05\/18\/mysql-%e4%b8%ad%e4%bd%bf%e7%94%a8%e8%a7%86%e5%9b%be%e7%9a%84%e5%b1%80%e9%99%90%e6%80%a7\/","title":{"rendered":"MySQL \u4e2d\u4f7f\u7528\u89c6\u56fe\u7684\u5c40\u9650\u6027"},"content":{"rendered":"\n<p>\u867d\u7136\u89c6\u56fe\u5728 MySQL \u4e2d\u5177\u6709\u7b80\u5316\u67e5\u8be2\u3001\u589e\u5f3a\u6570\u636e\u5b89\u5168\u6027\u548c\u63d0\u9ad8\u4ee3\u7801\u91cd\u7528\u6027\u7684\u4f18\u70b9\uff0c\u4f46\u5728\u5b9e\u9645\u5e94\u7528\u4e2d\u4e5f\u5b58\u5728\u4e00\u4e9b\u5c40\u9650\u6027\uff0c\u9700\u8981\u5728\u8bbe\u8ba1\u548c\u4f7f\u7528\u65f6\u5145\u5206\u8003\u8651\uff1a<\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h3 class=\"wp-block-heading\"><strong>1. \u6027\u80fd\u95ee\u9898<\/strong><\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>\u7f3a\u4e4f\u72ec\u7acb\u7d22\u5f15<\/strong>\n<ul class=\"wp-block-list\">\n<li>\u89c6\u56fe\u672c\u8eab\u4e0d\u5b58\u50a8\u6570\u636e\uff0c\u6ca1\u6709\u72ec\u7acb\u7684\u7d22\u5f15\uff0c\u67e5\u8be2\u6027\u80fd\u5b8c\u5168\u4f9d\u8d56\u4e8e\u5e95\u5c42\u8868\u7684\u7d22\u5f15\u3002<\/li>\n<\/ul>\n<\/li>\n\n\n\n<li><strong>\u6267\u884c\u6548\u7387\u4f4e<\/strong>\n<ul class=\"wp-block-list\">\n<li>\u590d\u6742\u7684\u5d4c\u5957\u89c6\u56fe\u4f1a\u589e\u52a0\u67e5\u8be2\u7684\u89e3\u6790\u548c\u4f18\u5316\u6210\u672c\uff0c\u53ef\u80fd\u5bfc\u81f4\u6027\u80fd\u4e0b\u964d\u3002<\/li>\n<\/ul>\n<\/li>\n\n\n\n<li><strong>\u4e0d\u652f\u6301\u7269\u5316<\/strong>\n<ul class=\"wp-block-list\">\n<li>MySQL \u89c6\u56fe\u662f\u201c\u865a\u62df\u8868\u201d\uff0c\u6bcf\u6b21\u67e5\u8be2\u90fd\u4f1a\u91cd\u65b0\u8ba1\u7b97\uff0c\u6ca1\u6709\u5185\u7f6e\u7684\u7269\u5316\u89c6\u56fe\u652f\u6301\u3002<\/li>\n<\/ul>\n<\/li>\n\n\n\n<li><strong>\u9501\u7b49\u5f85<\/strong>\n<ul class=\"wp-block-list\">\n<li>\u5bf9\u89c6\u56fe\u8fdb\u884c\u5927\u8303\u56f4\u67e5\u8be2\u65f6\uff0c\u53ef\u80fd\u4f1a\u5f15\u8d77\u9501\u7b49\u5f85\uff0c\u5f71\u54cd\u5e76\u53d1\u6027\u80fd\u3002<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n\n\n\n<p><strong>\u793a\u4f8b<\/strong><\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>CREATE VIEW large_view AS\nSELECT * FROM large_table WHERE status = 'ACTIVE';\n-- \u5982\u679c large_table \u975e\u5e38\u5927\uff0c\u4e14\u6ca1\u6709\u5408\u9002\u7684\u7d22\u5f15\uff0c\u8fd9\u4e2a\u89c6\u56fe\u7684\u67e5\u8be2\u6027\u80fd\u4f1a\u5f88\u5dee\u3002<\/code><\/pre>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h3 class=\"wp-block-heading\"><strong>2. \u529f\u80fd\u9650\u5236<\/strong><\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>\u89c6\u56fe\u4e0d\u53ef\u66f4\u65b0\uff08\u90e8\u5206\u573a\u666f\uff09<\/strong>\n<ul class=\"wp-block-list\">\n<li>\u89c6\u56fe\u57fa\u4e8e\u590d\u6742\u8ba1\u7b97\u3001\u805a\u5408\u51fd\u6570\u3001\u5206\u7ec4\uff08<code>GROUP BY<\/code>\uff09\u3001\u8054\u5408\uff08<code>UNION<\/code>\uff09\u7684\u7ed3\u679c\u65f6\uff0c\u901a\u5e38\u662f\u53ea\u8bfb\u7684\u3002<\/li>\n<\/ul>\n<\/li>\n\n\n\n<li><strong>\u4e0d\u652f\u6301 INSERT\/UPDATE\/DELETE\uff08\u90e8\u5206\u573a\u666f\uff09<\/strong>\n<ul class=\"wp-block-list\">\n<li>\u4f8b\u5982\u5305\u542b <code>DISTINCT<\/code>\u3001<code>GROUP BY<\/code>\u3001<code>HAVING<\/code> \u6216 <code>UNION<\/code> \u7684\u89c6\u56fe\u65e0\u6cd5\u6267\u884c\u6570\u636e\u4fee\u6539\u64cd\u4f5c\u3002<\/li>\n<\/ul>\n<\/li>\n\n\n\n<li><strong>\u65e0\u6cd5\u4f7f\u7528 ORDER BY\uff08\u90e8\u5206\u573a\u666f\uff09<\/strong>\n<ul class=\"wp-block-list\">\n<li>MySQL \u5728\u67d0\u4e9b\u7248\u672c\u4e2d\u4e0d\u652f\u6301\u5728\u89c6\u56fe\u5b9a\u4e49\u4e2d\u4f7f\u7528 <code>ORDER BY<\/code>\uff0c\u9664\u975e\u540c\u65f6\u4f7f\u7528 <code>LIMIT<\/code>\u3002<\/li>\n<\/ul>\n<\/li>\n\n\n\n<li><strong>\u9012\u5f52\u89c6\u56fe\u9650\u5236<\/strong>\n<ul class=\"wp-block-list\">\n<li>\u4e0d\u652f\u6301\u9012\u5f52\u89c6\u56fe\uff0c\u4e0d\u80fd\u5728\u89c6\u56fe\u4e2d\u5f15\u7528\u81ea\u8eab\u3002<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n\n\n\n<p><strong>\u793a\u4f8b<\/strong><\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>-- \u53ea\u8bfb\u89c6\u56fe\nCREATE VIEW sales_summary AS\nSELECT customer_id, COUNT(order_id) AS total_orders, SUM(amount) AS total_revenue\nFROM orders\nGROUP BY customer_id;\n\n-- \u5c1d\u8bd5\u66f4\u65b0\u53ea\u8bfb\u89c6\u56fe\uff08\u4f1a\u5931\u8d25\uff09\nUPDATE sales_summary SET total_revenue = 1000 WHERE customer_id = 1;<\/code><\/pre>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h3 class=\"wp-block-heading\"><strong>3. \u6570\u636e\u4e00\u81f4\u6027\u95ee\u9898<\/strong><\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>\u89c6\u56fe\u4e0e\u5e95\u5c42\u8868\u7684\u540c\u6b65<\/strong>\n<ul class=\"wp-block-list\">\n<li>\u89c6\u56fe\u6ca1\u6709\u6570\u636e\u5b58\u50a8\uff0c\u76f4\u63a5\u8bfb\u53d6\u5e95\u5c42\u8868\u7684\u6570\u636e\uff0c\u5982\u679c\u5e95\u5c42\u8868\u6570\u636e\u9891\u7e41\u53d8\u52a8\uff0c\u89c6\u56fe\u7684\u67e5\u8be2\u7ed3\u679c\u53ef\u80fd\u4e0d\u51c6\u786e\u3002<\/li>\n<\/ul>\n<\/li>\n\n\n\n<li><strong>\u9ad8\u5e76\u53d1\u573a\u666f\u4e0d\u9002\u7528<\/strong>\n<ul class=\"wp-block-list\">\n<li>\u89c6\u56fe\u67e5\u8be2\u65e0\u6cd5\u7f13\u51b2\uff0c\u9891\u7e41\u8bbf\u95ee\u89c6\u56fe\u53ef\u80fd\u5bfc\u81f4\u6027\u80fd\u74f6\u9888\u3002<\/li>\n<\/ul>\n<\/li>\n\n\n\n<li><strong>\u4e8b\u52a1\u9694\u79bb\u95ee\u9898<\/strong>\n<ul class=\"wp-block-list\">\n<li>\u5982\u679c\u89c6\u56fe\u6d89\u53ca\u591a\u4e2a\u8868\uff0c\u4e8b\u52a1\u9694\u79bb\u7ea7\u522b\u53ef\u80fd\u65e0\u6cd5\u5b8c\u5168\u63a7\u5236\u6570\u636e\u7684\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\"><strong>4. \u5b89\u5168\u6027\u95ee\u9898<\/strong><\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>SQL \u6ce8\u5165\u98ce\u9669<\/strong>\n<ul class=\"wp-block-list\">\n<li>\u5982\u679c\u89c6\u56fe\u5b9a\u4e49\u4e0d\u5f53\uff0c\u53ef\u80fd\u589e\u52a0 SQL \u6ce8\u5165\u7684\u653b\u51fb\u9762\u3002<\/li>\n<\/ul>\n<\/li>\n\n\n\n<li><strong>\u6743\u9650\u63a7\u5236\u590d\u6742<\/strong>\n<ul class=\"wp-block-list\">\n<li>\u867d\u7136\u89c6\u56fe\u53ef\u4ee5\u9690\u85cf\u654f\u611f\u6570\u636e\uff0c\u4f46\u5982\u679c\u57fa\u7840\u8868\u6743\u9650\u63a7\u5236\u4e0d\u5f53\uff0c\u4ecd\u7136\u5b58\u5728\u6570\u636e\u6cc4\u9732\u98ce\u9669\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\"><strong>5. \u7ef4\u62a4\u6210\u672c<\/strong><\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>\u89c6\u56fe\u5c42\u7ea7\u590d\u6742<\/strong>\n<ul class=\"wp-block-list\">\n<li>\u5d4c\u5957\u89c6\u56fe\u589e\u52a0\u4e86\u7ef4\u62a4\u96be\u5ea6\uff0c\u4fee\u6539\u5e95\u5c42\u8868\u7ed3\u6784\u53ef\u80fd\u9700\u8981\u540c\u6b65\u4fee\u6539\u591a\u4e2a\u89c6\u56fe\u3002<\/li>\n<\/ul>\n<\/li>\n\n\n\n<li><strong>\u8c03\u8bd5\u56f0\u96be<\/strong>\n<ul class=\"wp-block-list\">\n<li>\u89c6\u56fe\u7684\u95ee\u9898\u5f80\u5f80\u96be\u4ee5\u5b9a\u4f4d\uff0c\u7279\u522b\u662f\u591a\u5c42\u5d4c\u5957\u89c6\u56fe\u3002<\/li>\n<\/ul>\n<\/li>\n\n\n\n<li><strong>\u7248\u672c\u517c\u5bb9\u6027\u95ee\u9898<\/strong>\n<ul class=\"wp-block-list\">\n<li>\u4e0d\u540c\u7248\u672c\u7684 MySQL \u5bf9\u89c6\u56fe\u7684\u652f\u6301\u6709\u6240\u5dee\u5f02\uff0c\u53ef\u80fd\u5bfc\u81f4\u517c\u5bb9\u6027\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\"><strong>6. \u5176\u4ed6\u6280\u672f\u9650\u5236<\/strong><\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>\u5b58\u50a8\u9650\u5236<\/strong>\n<ul class=\"wp-block-list\">\n<li>\u89c6\u56fe\u7684\u5b9a\u4e49\u5b58\u50a8\u5728 <code>information_schema<\/code> \u4e2d\uff0c\u5982\u679c\u89c6\u56fe\u5b9a\u4e49\u8fc7\u957f\uff0c\u53ef\u80fd\u9047\u5230\u5b58\u50a8\u9650\u5236\u3002<\/li>\n<\/ul>\n<\/li>\n\n\n\n<li><strong>\u4e0d\u80fd\u4f7f\u7528\u52a8\u6001 SQL<\/strong>\n<ul class=\"wp-block-list\">\n<li>\u89c6\u56fe\u4e0d\u652f\u6301\u52a8\u6001 SQL\uff0c\u9700\u8981\u5728\u5e94\u7528\u5c42\u5904\u7406\u590d\u6742\u7684\u52a8\u6001\u67e5\u8be2\u903b\u8f91\u3002<\/li>\n<\/ul>\n<\/li>\n\n\n\n<li><strong>\u4e0d\u652f\u6301\u4e34\u65f6\u8868<\/strong>\n<ul class=\"wp-block-list\">\n<li>\u89c6\u56fe\u65e0\u6cd5\u5f15\u7528\u4e34\u65f6\u8868\u6216\u4f7f\u7528 <code>TEMPORARY<\/code> \u5173\u952e\u5b57\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\"><strong>\u5e94\u5bf9\u89c6\u56fe\u5c40\u9650\u6027\u7684\u4f18\u5316\u7b56\u7565<\/strong><\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>\u7d22\u5f15\u4f18\u5316<\/strong>\n<ul class=\"wp-block-list\">\n<li>\u786e\u4fdd\u89c6\u56fe\u5f15\u7528\u7684\u5e95\u5c42\u8868\u6709\u5408\u7406\u7684\u7d22\u5f15\u3002<\/li>\n<\/ul>\n<\/li>\n\n\n\n<li><strong>\u62c6\u5206\u89c6\u56fe<\/strong>\n<ul class=\"wp-block-list\">\n<li>\u5c06\u590d\u6742\u89c6\u56fe\u62c6\u5206\u4e3a\u591a\u4e2a\u7b80\u5355\u89c6\u56fe\uff0c\u51cf\u5c11\u8ba1\u7b97\u590d\u6742\u5ea6\u3002<\/li>\n<\/ul>\n<\/li>\n\n\n\n<li><strong>\u89c6\u56fe\u7f13\u5b58<\/strong>\n<ul class=\"wp-block-list\">\n<li>\u8003\u8651\u5728\u5e94\u7528\u5c42\u7f13\u5b58\u89c6\u56fe\u7ed3\u679c\uff0c\u51cf\u5c11\u9891\u7e41\u7684\u8ba1\u7b97\u5f00\u9500\u3002<\/li>\n<\/ul>\n<\/li>\n\n\n\n<li><strong>\u5b9a\u671f\u4f18\u5316<\/strong>\n<ul class=\"wp-block-list\">\n<li>\u5b9a\u671f\u68c0\u67e5\u89c6\u56fe\u7684\u6267\u884c\u8ba1\u5212\uff0c\u4f18\u5316\u67e5\u8be2\u7ed3\u6784\u3002<\/li>\n<\/ul>\n<\/li>\n\n\n\n<li><strong>\u4f7f\u7528\u5b58\u50a8\u8fc7\u7a0b<\/strong>\n<ul class=\"wp-block-list\">\n<li>\u5bf9\u4e8e\u590d\u6742\u7684\u6570\u636e\u5904\u7406\u903b\u8f91\uff0c\u4f18\u5148\u8003\u8651\u5b58\u50a8\u8fc7\u7a0b\u800c\u4e0d\u662f\u89c6\u56fe\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<p>\u66f4\u591a\u8be6\u7ec6\u5185\u5bb9\u8bf7\u5173\u6ce8\u5176\u4ed6\u76f8\u5173\u6587\u7ae0\uff01<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u867d\u7136\u89c6\u56fe\u5728 MySQL \u4e2d\u5177\u6709\u7b80\u5316\u67e5\u8be2\u3001\u589e\u5f3a\u6570\u636e\u5b89\u5168\u6027\u548c\u63d0\u9ad8\u4ee3\u7801\u91cd\u7528\u6027\u7684\u4f18\u70b9\uff0c\u4f46\u5728\u5b9e\u9645\u5e94\u7528\u4e2d\u4e5f\u5b58\u5728\u4e00\u4e9b\u5c40\u9650\u6027\uff0c [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":3729,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[35],"tags":[],"class_list":["post-3728","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-mysql"],"_links":{"self":[{"href":"https:\/\/www.laixuexila.com\/index.php\/wp-json\/wp\/v2\/posts\/3728","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=3728"}],"version-history":[{"count":1,"href":"https:\/\/www.laixuexila.com\/index.php\/wp-json\/wp\/v2\/posts\/3728\/revisions"}],"predecessor-version":[{"id":3730,"href":"https:\/\/www.laixuexila.com\/index.php\/wp-json\/wp\/v2\/posts\/3728\/revisions\/3730"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.laixuexila.com\/index.php\/wp-json\/wp\/v2\/media\/3729"}],"wp:attachment":[{"href":"https:\/\/www.laixuexila.com\/index.php\/wp-json\/wp\/v2\/media?parent=3728"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.laixuexila.com\/index.php\/wp-json\/wp\/v2\/categories?post=3728"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.laixuexila.com\/index.php\/wp-json\/wp\/v2\/tags?post=3728"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}