{"id":76288,"date":"2024-10-16T05:25:14","date_gmt":"2024-10-15T21:25:14","guid":{"rendered":"https:\/\/server.hk\/cnblog\/76288\/"},"modified":"2024-10-16T05:25:14","modified_gmt":"2024-10-15T21:25:14","slug":"mysql%e5%88%aa%e9%99%a4not-in%e8%aa%9e%e5%8f%a5%e4%bd%bf%e7%94%a8%e6%96%b9%e6%b3%95-%e5%88%aa%e9%99%a4%e6%95%b8%e6%93%9a%e5%ba%ab%e4%b8%adnot-in%e7%9a%84%e4%bd%bf%e7%94%a8","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/76288\/","title":{"rendered":"MySQL\u522a\u9664NOT IN\u8a9e\u53e5\u4f7f\u7528\u65b9\u6cd5 (\u522a\u9664\u6578\u64da\u5eab\u4e2dNOT IN\u7684\u4f7f\u7528)"},"content":{"rendered":"<h1 id=\"mysql%e5%88%aa%e9%99%a4not-in%e8%aa%9e%e5%8f%a5%e4%bd%bf%e7%94%a8%e6%96%b9%e6%b3%95-%e5%88%aa%e9%99%a4%e6%95%b8%e6%93%9a%e5%ba%ab%e4%b8%adnot-in%e7%9a%84%e4%bd%bf%e7%94%a8-TGQyXqHMNr\">MySQL\u522a\u9664NOT IN\u8a9e\u53e5\u4f7f\u7528\u65b9\u6cd5 (\u522a\u9664\u6578\u64da\u5eab\u4e2dNOT IN\u7684\u4f7f\u7528)<\/h1>\n<p>\u5728\u6578\u64da\u5eab\u7ba1\u7406\u4e2d\uff0cMySQL\u662f\u4e00\u500b\u5ee3\u6cdb\u4f7f\u7528\u7684\u95dc\u806f\u6578\u64da\u5eab\u7ba1\u7406\u7cfb\u7d71\u3002\u7576\u6211\u5011\u9700\u8981\u5f9e\u6578\u64da\u5eab\u4e2d\u522a\u9664\u7279\u5b9a\u7684\u6578\u64da\u6642\uff0c<code>DELETE<\/code>\u8a9e\u53e5\u662f\u6700\u5e38\u7528\u7684\u5de5\u5177\u4e4b\u4e00\u3002\u672c\u6587\u5c07\u91cd\u9ede\u4ecb\u7d39\u5982\u4f55\u4f7f\u7528<code>NOT IN<\/code>\u8a9e\u53e5\u4f86\u522a\u9664\u6578\u64da\u5eab\u4e2d\u7684\u6578\u64da\uff0c\u4e26\u63d0\u4f9b\u76f8\u95dc\u7684\u793a\u4f8b\u548c\u6ce8\u610f\u4e8b\u9805\u3002<\/p>\n<h2 id=\"not-in%e8%aa%9e%e5%8f%a5%e7%9a%84%e5%9f%ba%e6%9c%ac%e6%a6%82%e5%bf%b5-TGQyXqHMNr\">NOT IN\u8a9e\u53e5\u7684\u57fa\u672c\u6982\u5ff5<\/h2>\n<p><code>NOT IN<\/code>\u662f\u4e00\u500b\u7528\u65bc\u7be9\u9078\u6578\u64da\u7684\u689d\u4ef6\u8a9e\u53e5\uff0c\u901a\u5e38\u8207<code>SELECT<\/code>\u3001<code>UPDATE<\/code>\u548c<code>DELETE<\/code>\u7b49\u8a9e\u53e5\u4e00\u8d77\u4f7f\u7528\u3002\u5b83\u7684\u4f5c\u7528\u662f\u5f9e\u67e5\u8a62\u7d50\u679c\u4e2d\u6392\u9664\u90a3\u4e9b\u5728\u6307\u5b9a\u5217\u8868\u4e2d\u7684\u503c\u3002\u9019\u5728\u9700\u8981\u522a\u9664\u4e0d\u7b26\u5408\u7279\u5b9a\u689d\u4ef6\u7684\u6578\u64da\u6642\u975e\u5e38\u6709\u7528\u3002<\/p>\n<h2 id=\"%e4%bd%bf%e7%94%a8delete%e8%aa%9e%e5%8f%a5%e7%b5%90%e5%90%88not-in-TGQyXqHMNr\">\u4f7f\u7528DELETE\u8a9e\u53e5\u7d50\u5408NOT IN<\/h2>\n<p>\u7576\u6211\u5011\u9700\u8981\u522a\u9664\u67d0\u4e9b\u4e0d\u5728\u7279\u5b9a\u689d\u4ef6\u4e0b\u7684\u6578\u64da\u6642\uff0c\u53ef\u4ee5\u4f7f\u7528\u4ee5\u4e0b\u8a9e\u6cd5\uff1a<\/p>\n<pre><code>DELETE FROM \u8868\u540d WHERE \u5217\u540d NOT IN (\u503c1, \u503c2, ...);<\/code><\/pre>\n<p>\u9019\u88e1\u7684<code>\u8868\u540d<\/code>\u662f\u4f60\u8981\u522a\u9664\u6578\u64da\u7684\u8868\uff0c<code>\u5217\u540d<\/code>\u662f\u7528\u4f86\u7be9\u9078\u7684\u5217\uff0c\u800c<code>\u503c1, \u503c2, ...<\/code>\u5247\u662f\u4f60\u5e0c\u671b\u6392\u9664\u7684\u503c\u3002<\/p>\n<h3 id=\"%e7%a4%ba%e4%be%8b-TGQyXqHMNr\">\u793a\u4f8b<\/h3>\n<p>\u5047\u8a2d\u6211\u5011\u6709\u4e00\u500b\u540d\u70ba<code>employees<\/code>\u7684\u8868\uff0c\u8a72\u8868\u5305\u542b\u4ee5\u4e0b\u6578\u64da\uff1a<\/p>\n<pre><code>\n+----+----------+-------+\n| ID | Name     | Dept  |\n+----+----------+-------+\n| 1  | Alice    | HR    |\n| 2  | Bob      | IT    |\n| 3  | Charlie  | IT    |\n| 4  | David    | Sales |\n| 5  | Eva      | HR    |\n+----+----------+-------+\n<\/code><\/pre>\n<p>\u5982\u679c\u6211\u5011\u60f3\u522a\u9664\u6240\u6709\u4e0d\u5728<code>IT<\/code>\u90e8\u9580\u7684\u54e1\u5de5\uff0c\u53ef\u4ee5\u4f7f\u7528\u4ee5\u4e0b\u8a9e\u53e5\uff1a<\/p>\n<pre><code>DELETE FROM employees WHERE Dept NOT IN ('IT');<\/code><\/pre>\n<p>\u57f7\u884c\u5f8c\uff0c<code>employees<\/code>\u8868\u5c07\u53ea\u5269\u4e0b<code>Bob<\/code>\u548c<code>Charlie<\/code>\u5169\u4f4d\u5728<code>IT<\/code>\u90e8\u9580\u7684\u54e1\u5de5\u3002<\/p>\n<h2 id=\"%e6%b3%a8%e6%84%8f%e4%ba%8b%e9%a0%85-TGQyXqHMNr\">\u6ce8\u610f\u4e8b\u9805<\/h2>\n<ul>\n<li><strong>NULL\u503c\u7684\u8655\u7406\uff1a<\/strong>\u5982\u679c<code>\u5217\u540d<\/code>\u4e2d\u5305\u542b<code>NULL<\/code>\u503c\uff0c\u5247<code>NOT IN<\/code>\u53ef\u80fd\u4e0d\u6703\u5982\u9810\u671f\u5de5\u4f5c\u3002\u9019\u662f\u56e0\u70ba\u4efb\u4f55\u8207<code>NULL<\/code>\u9032\u884c\u6bd4\u8f03\u7684\u7d50\u679c\u90fd\u662f<code>NULL<\/code>\uff0c\u56e0\u6b64\u4e0d\u6703\u88ab\u522a\u9664\u3002\u70ba\u4e86\u907f\u514d\u9019\u7a2e\u60c5\u6cc1\uff0c\u53ef\u4ee5\u5728\u67e5\u8a62\u4e2d\u6dfb\u52a0<code>AND \u5217\u540d IS NOT NULL<\/code>\u3002<\/li>\n<li><strong>\u6027\u80fd\u8003\u91cf\uff1a<\/strong>\u5728\u5927\u578b\u6578\u64da\u96c6\u4e0a\u4f7f\u7528<code>NOT IN<\/code>\u53ef\u80fd\u6703\u5f71\u97ff\u6027\u80fd\u3002\u8003\u616e\u4f7f\u7528<code>LEFT JOIN<\/code>\u6216<code>EXISTS<\/code>\u4f86\u63d0\u9ad8\u67e5\u8a62\u6548\u7387\u3002<\/li>\n<li><strong>\u5099\u4efd\u6578\u64da\uff1a<\/strong>\u5728\u57f7\u884c\u522a\u9664\u64cd\u4f5c\u4e4b\u524d\uff0c\u5efa\u8b70\u5148\u5099\u4efd\u6578\u64da\uff0c\u4ee5\u9632\u8aa4\u522a\u9664\u91cd\u8981\u4fe1\u606f\u3002<\/li>\n<\/ul>\n<h2 id=\"%e7%b8%bd%e7%b5%90-TGQyXqHMNr\">\u7e3d\u7d50<\/h2>\n<p>\u4f7f\u7528<code>NOT IN<\/code>\u8a9e\u53e5\u4f86\u522a\u9664\u6578\u64da\u662f\u4e00\u500b\u5f37\u5927\u7684\u5de5\u5177\uff0c\u53ef\u4ee5\u5e6b\u52a9\u7528\u6236\u6709\u6548\u5730\u7ba1\u7406\u6578\u64da\u5eab\u4e2d\u7684\u4fe1\u606f\u3002\u901a\u904e\u6b63\u78ba\u7684\u8a9e\u6cd5\u548c\u6ce8\u610f\u4e8b\u9805\uff0c\u60a8\u53ef\u4ee5\u78ba\u4fdd\u522a\u9664\u64cd\u4f5c\u7684\u6e96\u78ba\u6027\u548c\u6548\u7387\u3002\u5982\u679c\u60a8\u6b63\u5728\u5c0b\u627e\u9ad8\u6548\u7684\u6578\u64da\u5eab\u89e3\u6c7a\u65b9\u6848\uff0c\u8003\u616e\u4f7f\u7528<a href=\"https:\/\/server.hk\">\u9999\u6e2fVPS<\/a>\u4f86\u6258\u7ba1\u60a8\u7684MySQL\u6578\u64da\u5eab\uff0c\u9019\u5c07\u70ba\u60a8\u7684\u696d\u52d9\u63d0\u4f9b\u7a69\u5b9a\u548c\u53ef\u9760\u7684\u652f\u6301\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u4e86\u89e3MySQL\u4e2dNOT IN\u8a9e\u53e5\u7684\u4f7f\u7528\u65b9\u6cd5\uff0c\u5b78\u7fd2\u5982\u4f55\u6709\u6548\u522a\u9664\u6578\u64da\u5eab\u4e2d\u7684\u7279\u5b9a\u6578\u64da\u3002<\/p>\n","protected":false},"author":0,"featured_media":0,"comment_status":"closed","ping_status":"","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[101],"tags":[],"class_list":["post-76288","post","type-post","status-publish","format-standard","hentry","category-database"],"_links":{"self":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/76288","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/types\/post"}],"replies":[{"embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/comments?post=76288"}],"version-history":[{"count":1,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/76288\/revisions"}],"predecessor-version":[{"id":76289,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/76288\/revisions\/76289"}],"wp:attachment":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/media?parent=76288"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/categories?post=76288"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/tags?post=76288"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}