{"id":473,"date":"2024-12-22T15:53:31","date_gmt":"2024-12-22T07:53:31","guid":{"rendered":"https:\/\/www.laixuexila.com\/?p=473"},"modified":"2024-12-22T15:54:32","modified_gmt":"2024-12-22T07:54:32","slug":"%e4%b8%ba%e4%bb%80%e4%b9%88mysql%e4%b8%8d%e5%bb%ba%e8%ae%ae%e4%bd%bf%e7%94%a8delete%e5%88%a0%e9%99%a4%e6%95%b0%e6%8d%ae%ef%bc%9f","status":"publish","type":"post","link":"https:\/\/www.laixuexila.com\/index.php\/2024\/12\/22\/%e4%b8%ba%e4%bb%80%e4%b9%88mysql%e4%b8%8d%e5%bb%ba%e8%ae%ae%e4%bd%bf%e7%94%a8delete%e5%88%a0%e9%99%a4%e6%95%b0%e6%8d%ae%ef%bc%9f\/","title":{"rendered":"\u4e3a\u4ec0\u4e48MySQL\u4e0d\u5efa\u8bae\u4f7f\u7528delete\u5220\u9664\u6570\u636e\uff1f"},"content":{"rendered":"\n<blockquote class=\"wp-block-quote is-layout-flow wp-block-quote-is-layout-flow\">\n<p class=\"wp-block-paragraph\">MySQL \u4e0d\u5efa\u8bae\u76f4\u63a5\u4f7f\u7528 <code>DELETE<\/code> \u5220\u9664\u6570\u636e\uff0c\u4e3b\u8981\u662f\u56e0\u4e3a\u4ee5\u4e0b\u51e0\u4e2a\u539f\u56e0\uff1a<\/p>\n<\/blockquote>\n\n\n\n<p class=\"wp-block-paragraph\">1\u3001<strong>\u6027\u80fd\u95ee\u9898<\/strong>\uff1a<\/p>\n\n\n\n<ol class=\"wp-block-list\"><\/ol>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>\u4e8b\u52a1\u65e5\u5fd7\u7684\u5f00\u9500<\/strong>\uff1a\u6bcf\u6b21\u6267\u884c <code>DELETE<\/code> \u64cd\u4f5c\u65f6\uff0cMySQL \u90fd\u4f1a\u5728\u4e8b\u52a1\u65e5\u5fd7\u4e2d\u8bb0\u5f55\u5220\u9664\u7684\u6bcf\u4e00\u884c\u6570\u636e\u3002\u8fd9\u5bf9\u4e8e\u5927\u91cf\u6570\u636e\u7684\u5220\u9664\u4f1a\u5bfc\u81f4\u6027\u80fd\u4e25\u91cd\u4e0b\u964d\uff0c\u7279\u522b\u662f\u5728\u5927\u8868\u4e2d\u5220\u9664\u6570\u636e\u65f6\u3002<\/li>\n\n\n\n<li><strong>\u9501\u8868\u5f00\u9500<\/strong>\uff1a\u5728\u67d0\u4e9b\u60c5\u51b5\u4e0b\uff0c\u5c24\u5176\u662f\u5f53\u8868\u6709\u5916\u952e\u7ea6\u675f\u6216\u9700\u8981\u4fdd\u6301\u4e00\u81f4\u6027\u65f6\uff0c<code>DELETE<\/code> \u64cd\u4f5c\u4f1a\u52a0\u9501\uff0c\u5bfc\u81f4\u5176\u4ed6\u64cd\u4f5c\u88ab\u963b\u585e\uff0c\u4ece\u800c\u5f71\u54cd\u7cfb\u7edf\u7684\u5e76\u53d1\u6027\u3002<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">2\u3001<strong>\u65e0\u6cd5\u56de\u6536\u7a7a\u95f4<\/strong>\uff1a<\/p>\n\n\n\n<ol class=\"wp-block-list\"><\/ol>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u6267\u884c <code>DELETE<\/code> \u64cd\u4f5c\u540e\uff0c\u6570\u636e\u4f1a\u4ece\u8868\u4e2d\u5220\u9664\uff0c\u4f46\u8868\u7684\u7269\u7406\u7a7a\u95f4\u4e0d\u4f1a\u7acb\u5373\u88ab\u56de\u6536\u3002\u5373\u4f7f\u6570\u636e\u88ab\u5220\u9664\u4e86\uff0c\u78c1\u76d8\u7a7a\u95f4\u4ecd\u7136\u88ab\u5360\u7528\uff0c\u76f4\u5230\u6267\u884c <code>OPTIMIZE TABLE<\/code> \u6216\u8868\u7684\u91cd\u5efa\uff0c\u8fd9\u53ef\u80fd\u4f1a\u5bfc\u81f4\u6570\u636e\u5e93\u7a7a\u95f4\u7684\u6d6a\u8d39\u3002<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">3\u3001<strong>\u5927\u8868\u5220\u9664\u65f6\u7684\u5f71\u54cd<\/strong>\uff1a<\/p>\n\n\n\n<ol class=\"wp-block-list\"><\/ol>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u5982\u679c\u5220\u9664\u5927\u91cf\u884c\u65f6\uff0cMySQL \u4f1a\u8fdb\u884c\u65e5\u5fd7\u8bb0\u5f55\u3001\u89e6\u53d1\u5668\u64cd\u4f5c\uff08\u5982\u679c\u6709\u7684\u8bdd\uff09\u7b49\uff0c\u6240\u6709\u8fd9\u4e9b\u64cd\u4f5c\u90fd\u4f1a\u6d88\u8017\u5927\u91cf\u8d44\u6e90\uff0c\u53ef\u80fd\u5bfc\u81f4\u6027\u80fd\u4e0b\u964d\u751a\u81f3\u51fa\u73b0\u957f\u65f6\u95f4\u7684\u9501\u5b9a\u3002<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">4\u3001<strong>\u53ef\u80fd\u4f1a\u5bfc\u81f4\u788e\u7247\u5316<\/strong>\uff1a<\/p>\n\n\n\n<ol class=\"wp-block-list\"><\/ol>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u5982\u679c\u9891\u7e41\u6267\u884c <code>DELETE<\/code> \u64cd\u4f5c\uff0c\u5c24\u5176\u662f\u5220\u9664\u90e8\u5206\u6570\u636e\uff0c\u8868\u5185\u7684\u7a7a\u95f4\u53ef\u80fd\u4f1a\u53d8\u5f97\u975e\u5e38\u788e\u7247\u5316\u3002\u8fd9\u6837\u7684\u788e\u7247\u5316\u4f1a\u5f71\u54cd\u67e5\u8be2\u6027\u80fd\uff0c\u751a\u81f3\u5bfc\u81f4\u78c1\u76d8\u7a7a\u95f4\u7684\u6d6a\u8d39\u3002<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">5\u3001<strong>\u5916\u952e\u7ea6\u675f\u7684\u5f71\u54cd<\/strong>\uff1a<\/p>\n\n\n\n<ol class=\"wp-block-list\"><\/ol>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u5982\u679c\u8868\u4e2d\u6709\u5916\u952e\u7ea6\u675f\uff0c\u6267\u884c <code>DELETE<\/code> \u64cd\u4f5c\u65f6\uff0cMySQL \u4f1a\u68c0\u67e5\u6240\u6709\u5916\u952e\u5173\u8054\uff0c\u5220\u9664\u4e0e\u4e4b\u5173\u8054\u7684\u5b50\u8868\u6570\u636e\u6216\u6807\u8bb0\u4e3a\u201c\u5df2\u5220\u9664\u201d\uff0c\u8fd9\u4f1a\u589e\u52a0\u989d\u5916\u7684\u5f00\u9500\u3002<\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\">\u63a8\u8350\u7684\u66ff\u4ee3\u65b9\u6848\uff1a<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">1\u3001<strong>\u4f7f\u7528 <code>TRUNCATE<\/code><\/strong>\uff1a<\/p>\n\n\n\n<ol class=\"wp-block-list\"><\/ol>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u5982\u679c\u5220\u9664\u7684\u662f\u6574\u4e2a\u8868\u7684\u6570\u636e\uff0c\u53ef\u4ee5\u4f7f\u7528 <code>TRUNCATE<\/code> \u6765\u66ff\u4ee3 <code>DELETE<\/code>\u3002<code>TRUNCATE<\/code> \u662f\u4e00\u79cd\u6bd4 <code>DELETE<\/code> \u66f4\u9ad8\u6548\u7684\u65b9\u6cd5\uff0c\u56e0\u4e3a\u5b83\u4f1a\u91ca\u653e\u8868\u7684\u7a7a\u95f4\u5e76\u91cd\u65b0\u521d\u59cb\u5316\u8868\uff0c\u800c\u4e0d\u9700\u8981\u9010\u884c\u5220\u9664\u3002<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">2\u3001<strong>\u8f6f\u5220\u9664<\/strong>\uff1a<\/p>\n\n\n\n<ol class=\"wp-block-list\"><\/ol>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u5982\u679c\u4f60\u4e0d\u5e0c\u671b\u771f\u7684\u4ece\u6570\u636e\u5e93\u4e2d\u5220\u9664\u6570\u636e\uff0c\u53ef\u4ee5\u4f7f\u7528\u201c\u8f6f\u5220\u9664\u201d\u7684\u65b9\u5f0f\uff0c\u5373\u901a\u8fc7\u4e00\u4e2a\u6807\u5fd7\u5b57\u6bb5\uff08\u5982 <code>is_deleted<\/code>\uff09\u6807\u8bb0\u6570\u636e\u4e3a\u5df2\u5220\u9664\u3002\u8fd9\u79cd\u65b9\u6cd5\u53ef\u4ee5\u907f\u514d\u5220\u9664\u64cd\u4f5c\u5bf9\u6027\u80fd\u7684\u5f71\u54cd\uff0c\u5e76\u4e14\u53ef\u4ee5\u968f\u65f6\u6062\u590d\u6570\u636e\u3002<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">3\u3001<strong>\u5206\u6279\u5220\u9664<\/strong>\uff1a<\/p>\n\n\n\n<ol class=\"wp-block-list\"><\/ol>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u5982\u679c\u5fc5\u987b\u5220\u9664\u5927\u91cf\u6570\u636e\uff0c\u53ef\u4ee5\u8003\u8651\u5c06\u5220\u9664\u64cd\u4f5c\u5206\u6279\u8fdb\u884c\u3002\u901a\u8fc7\u9650\u5236\u6bcf\u6b21\u5220\u9664\u7684\u884c\u6570\uff0c\u51cf\u5c11\u6bcf\u6b21\u64cd\u4f5c\u7684\u5f00\u9500\uff0c\u5e76\u907f\u514d\u4e00\u6b21\u6027\u5220\u9664\u5bfc\u81f4\u7684\u6027\u80fd\u95ee\u9898\u3002<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">4\u3001<strong>\u5b9a\u671f\u6e05\u7406<\/strong>\uff1a<\/p>\n\n\n\n<ol class=\"wp-block-list\"><\/ol>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u5bf9\u4e8e\u9700\u8981\u5b9a\u671f\u5220\u9664\u7684\u6570\u636e\uff0c\u53ef\u4ee5\u8bbe\u7f6e\u81ea\u52a8\u6e05\u7406\u4efb\u52a1\uff08\u5982 cron \u5b9a\u65f6\u4efb\u52a1\uff09\uff0c\u800c\u4e0d\u662f\u4f9d\u8d56\u7528\u6237\u5728\u5e94\u7528\u5c42\u76f4\u63a5\u5220\u9664\u3002<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">\u603b\u4e4b\uff0cMySQL \u4e0d\u5efa\u8bae\u76f4\u63a5\u4f7f\u7528 <code>DELETE<\/code> \u5220\u9664\u5927\u91cf\u6570\u636e\uff0c\u5c24\u5176\u662f\u5728\u6027\u80fd\u8981\u6c42\u8f83\u9ad8\u7684\u7cfb\u7edf\u4e2d\uff0c\u63a8\u8350\u4f7f\u7528\u5176\u4ed6\u66f4\u9ad8\u6548\u7684\u65b9\u6cd5\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>MySQL \u4e0d\u5efa\u8bae\u76f4\u63a5\u4f7f\u7528 DELETE \u5220\u9664\u6570\u636e\uff0c\u4e3b\u8981\u662f\u56e0\u4e3a\u4ee5\u4e0b\u51e0\u4e2a\u539f\u56e0\uff1a 1\u3001\u6027\u80fd\u95ee\u9898\uff1a 2\u3001\u65e0\u6cd5\u56de\u6536\u7a7a\u95f4 [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[35],"tags":[],"class_list":["post-473","post","type-post","status-publish","format-standard","hentry","category-mysql"],"_links":{"self":[{"href":"https:\/\/www.laixuexila.com\/index.php\/wp-json\/wp\/v2\/posts\/473","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=473"}],"version-history":[{"count":3,"href":"https:\/\/www.laixuexila.com\/index.php\/wp-json\/wp\/v2\/posts\/473\/revisions"}],"predecessor-version":[{"id":476,"href":"https:\/\/www.laixuexila.com\/index.php\/wp-json\/wp\/v2\/posts\/473\/revisions\/476"}],"wp:attachment":[{"href":"https:\/\/www.laixuexila.com\/index.php\/wp-json\/wp\/v2\/media?parent=473"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.laixuexila.com\/index.php\/wp-json\/wp\/v2\/categories?post=473"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.laixuexila.com\/index.php\/wp-json\/wp\/v2\/tags?post=473"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}