{"id":81412,"date":"2024-10-16T15:35:17","date_gmt":"2024-10-16T07:35:17","guid":{"rendered":"https:\/\/server.hk\/cnblog\/81412\/"},"modified":"2024-10-16T15:35:18","modified_gmt":"2024-10-16T07:35:18","slug":"not-in%e6%95%b8%e6%93%9a%e5%ba%ab%e6%9f%a5%e8%a9%a2%e8%aa%9e%e5%8f%a5%e5%84%aa%e5%8c%96%e5%8f%8a%e6%87%89%e7%94%a8-%e6%95%b8%e6%93%9a%e5%ba%ab%e6%9f%a5%e8%a9%a2%e8%aa%9e%e5%8f%a5not-in","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/81412\/","title":{"rendered":"NOT IN\u6578\u64da\u5eab\u67e5\u8a62\u8a9e\u53e5\u512a\u5316\u53ca\u61c9\u7528 (\u6578\u64da\u5eab\u67e5\u8a62\u8a9e\u53e5NOT IN)"},"content":{"rendered":"<h1 id=\"not-in%e6%95%b8%e6%93%9a%e5%ba%ab%e6%9f%a5%e8%a9%a2%e8%aa%9e%e5%8f%a5%e5%84%aa%e5%8c%96%e5%8f%8a%e6%87%89%e7%94%a8-nlApvHEkBi\">NOT IN\u6578\u64da\u5eab\u67e5\u8a62\u8a9e\u53e5\u512a\u5316\u53ca\u61c9\u7528<\/h1>\n<p>\u5728\u6578\u64da\u5eab\u67e5\u8a62\u4e2d\uff0c<code>NOT IN<\/code>\u662f\u4e00\u500b\u5e38\u7528\u7684\u689d\u4ef6\u8a9e\u53e5\uff0c\u7528\u65bc\u6392\u9664\u67d0\u4e9b\u7279\u5b9a\u7684\u503c\u3002\u7136\u800c\uff0c\u7576\u6578\u64da\u91cf\u589e\u5927\u6642\uff0c<code>NOT IN<\/code>\u7684\u6027\u80fd\u53ef\u80fd\u6703\u53d7\u5230\u5f71\u97ff\uff0c\u56e0\u6b64\u9032\u884c\u512a\u5316\u662f\u975e\u5e38\u5fc5\u8981\u7684\u3002\u672c\u6587\u5c07\u63a2\u8a0e<code>NOT IN<\/code>\u7684\u57fa\u672c\u7528\u6cd5\u3001\u6027\u80fd\u554f\u984c\u53ca\u5176\u512a\u5316\u65b9\u6cd5\u3002<\/p>\n<h2 id=\"not-in%e7%9a%84%e5%9f%ba%e6%9c%ac%e7%94%a8%e6%b3%95-nlApvHEkBi\">NOT IN\u7684\u57fa\u672c\u7528\u6cd5<\/h2>\n<p><code>NOT IN<\/code>\u8a9e\u53e5\u901a\u5e38\u7528\u65bc\u67e5\u8a62\u4e2d\uff0c\u7576\u9700\u8981\u6392\u9664\u67d0\u4e9b\u7279\u5b9a\u7684\u503c\u6642\u975e\u5e38\u6709\u7528\u3002\u5176\u57fa\u672c\u8a9e\u6cd5\u5982\u4e0b\uff1a<\/p>\n<pre><code>SELECT * FROM \u8868\u540d WHERE \u5217\u540d NOT IN (\u503c1, \u503c2, \u503c3, ...);<\/code><\/pre>\n<p>\u4f8b\u5982\uff0c\u5047\u8a2d\u6709\u4e00\u500b\u540d\u70ba<code>employees<\/code>\u7684\u8868\uff0c\u82e5\u8981\u67e5\u8a62\u4e0d\u5728\u7279\u5b9a\u90e8\u9580\u7684\u6240\u6709\u54e1\u5de5\uff0c\u53ef\u4ee5\u4f7f\u7528\u4ee5\u4e0b\u67e5\u8a62\uff1a<\/p>\n<pre><code>SELECT * FROM employees WHERE department_id NOT IN (1, 2, 3);<\/code><\/pre>\n<h2 id=\"%e6%80%a7%e8%83%bd%e5%95%8f%e9%a1%8c-nlApvHEkBi\">\u6027\u80fd\u554f\u984c<\/h2>\n<p>\u5118\u7ba1<code>NOT IN<\/code>\u8a9e\u53e5\u5728\u67d0\u4e9b\u60c5\u6cc1\u4e0b\u975e\u5e38\u65b9\u4fbf\uff0c\u4f46\u5728\u8655\u7406\u5927\u91cf\u6578\u64da\u6642\uff0c\u6027\u80fd\u53ef\u80fd\u6703\u53d7\u5230\u5f71\u97ff\u3002\u4e3b\u8981\u539f\u56e0\u5305\u62ec\uff1a<\/p>\n<ul>\n<li><strong>NULL\u503c\u7684\u5f71\u97ff\uff1a<\/strong>\u5982\u679c<code>NOT IN<\/code>\u7684\u5217\u8868\u4e2d\u5305\u542b<code>NULL<\/code>\uff0c\u5247\u67e5\u8a62\u7d50\u679c\u53ef\u80fd\u6703\u4e0d\u5982\u9810\u671f\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\u67e5\u8a62\u53ef\u80fd\u6703\u8fd4\u56de\u7a7a\u7d50\u679c\u3002<\/li>\n<li><strong>\u5168\u8868\u6383\u63cf\uff1a<\/strong>\u5728\u67d0\u4e9b\u60c5\u6cc1\u4e0b\uff0c\u6578\u64da\u5eab\u53ef\u80fd\u7121\u6cd5\u4f7f\u7528\u7d22\u5f15\uff0c\u5c0e\u81f4\u5168\u8868\u6383\u63cf\uff0c\u9019\u6703\u986f\u8457\u964d\u4f4e\u67e5\u8a62\u6027\u80fd\u3002<\/li>\n<\/ul>\n<h2 id=\"%e5%84%aa%e5%8c%96%e6%96%b9%e6%b3%95-nlApvHEkBi\">\u512a\u5316\u65b9\u6cd5<\/h2>\n<p>\u70ba\u4e86\u63d0\u9ad8<code>NOT IN<\/code>\u67e5\u8a62\u7684\u6027\u80fd\uff0c\u53ef\u4ee5\u8003\u616e\u4ee5\u4e0b\u5e7e\u7a2e\u512a\u5316\u65b9\u6cd5\uff1a<\/p>\n<h3 id=\"1-%e4%bd%bf%e7%94%a8left-join%e6%9b%bf%e4%bb%a3not-in-nlApvHEkBi\">1. \u4f7f\u7528LEFT JOIN\u66ff\u4ee3NOT IN<\/h3>\n<p>\u4f7f\u7528<code>LEFT JOIN<\/code>\u53ef\u4ee5\u6709\u6548\u5730\u66ff\u4ee3<code>NOT IN<\/code>\uff0c\u5f9e\u800c\u63d0\u9ad8\u67e5\u8a62\u6027\u80fd\u3002\u4ee5\u4e0b\u662f\u4f7f\u7528<code>LEFT JOIN<\/code>\u7684\u793a\u4f8b\uff1a<\/p>\n<pre><code>SELECT e.* \nFROM employees e \nLEFT JOIN departments d ON e.department_id = d.id \nWHERE d.id IS NULL;<\/code><\/pre>\n<h3 id=\"2-%e4%bd%bf%e7%94%a8not-exists-nlApvHEkBi\">2. \u4f7f\u7528NOT EXISTS<\/h3>\n<p>\u53e6\u4e00\u7a2e\u5e38\u898b\u7684\u66ff\u4ee3\u65b9\u6848\u662f\u4f7f\u7528<code>NOT EXISTS<\/code>\u3002\u9019\u7a2e\u65b9\u6cd5\u901a\u5e38\u6bd4<code>NOT IN<\/code>\u66f4\u9ad8\u6548\uff0c\u7279\u5225\u662f\u5728\u8655\u7406\u5927\u6578\u64da\u96c6\u6642\uff1a<\/p>\n<pre><code>SELECT * \nFROM employees e \nWHERE NOT EXISTS (SELECT 1 FROM departments d WHERE e.department_id = d.id);<\/code><\/pre>\n<h3 id=\"3-%e7%a2%ba%e4%bf%9d%e7%b4%a2%e5%bc%95%e7%9a%84%e4%bd%bf%e7%94%a8-nlApvHEkBi\">3. \u78ba\u4fdd\u7d22\u5f15\u7684\u4f7f\u7528<\/h3>\n<p>\u78ba\u4fdd\u5728\u67e5\u8a62\u4e2d\u4f7f\u7528\u7684\u5217\u4e0a\u6709\u9069\u7576\u7684\u7d22\u5f15\uff0c\u53ef\u4ee5\u986f\u8457\u63d0\u9ad8\u67e5\u8a62\u6027\u80fd\u3002\u5c0d\u65bc<code>NOT IN<\/code>\u67e5\u8a62\uff0c\u7279\u5225\u662f\u6d89\u53ca\u5230\u7684\u5217\u61c9\u8a72\u6709\u7d22\u5f15\uff0c\u4ee5\u4fbf\u6578\u64da\u5eab\u80fd\u5920\u5feb\u901f\u5b9a\u4f4d\u6578\u64da\u3002<\/p>\n<h2 id=\"%e7%b5%90%e8%ab%96-nlApvHEkBi\">\u7d50\u8ad6<\/h2>\n<p>\u96d6\u7136<code>NOT IN<\/code>\u662f\u4e00\u500b\u65b9\u4fbf\u7684\u67e5\u8a62\u5de5\u5177\uff0c\u4f46\u5728\u8655\u7406\u5927\u91cf\u6578\u64da\u6642\uff0c\u6027\u80fd\u554f\u984c\u4e0d\u5bb9\u5ffd\u8996\u3002\u901a\u904e\u4f7f\u7528<code>LEFT JOIN<\/code>\u3001<code>NOT EXISTS<\/code>\u4ee5\u53ca\u78ba\u4fdd\u7d22\u5f15\u7684\u4f7f\u7528\uff0c\u53ef\u4ee5\u6709\u6548\u5730\u512a\u5316\u67e5\u8a62\u6027\u80fd\u3002\u5c0d\u65bc\u9700\u8981\u9ad8\u6548\u6578\u64da\u8655\u7406\u7684\u61c9\u7528\uff0c\u9078\u64c7\u5408\u9069\u7684\u67e5\u8a62\u8a9e\u53e5\u81f3\u95dc\u91cd\u8981\u3002<\/p>\n<p>\u5982\u9700\u4e86\u89e3\u66f4\u591a\u95dc\u65bc\u6578\u64da\u5eab\u512a\u5316\u53ca\u5176\u4ed6\u6280\u8853\u652f\u6301\uff0c\u8acb\u8a2a\u554f\u6211\u5011\u7684\u7db2\u7ad9<a href=\"https:\/\/server.hk\">Server.HK<\/a>\uff0c\u6211\u5011\u63d0\u4f9b\u5404\u985e<code>VPS<\/code>\u53ca<code>\u9999\u6e2f\u4f3a\u670d\u5668<\/code>\u89e3\u6c7a\u65b9\u6848\uff0c\u52a9\u60a8\u63d0\u5347\u696d\u52d9\u6548\u7387\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u63a2\u7d22NOT IN\u6578\u64da\u5eab\u67e5\u8a62\u8a9e\u53e5\u7684\u512a\u5316\u6280\u5de7\u53ca\u61c9\u7528\uff0c\u63d0\u5347\u67e5\u8a62\u6548\u7387\uff0c\u89e3\u6c7a\u6027\u80fd\u74f6\u9838\uff0c\u5be6\u73fe\u6578\u64da\u8655\u7406\u6700\u4f73\u5316\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-81412","post","type-post","status-publish","format-standard","hentry","category-database"],"_links":{"self":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/81412","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=81412"}],"version-history":[{"count":1,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/81412\/revisions"}],"predecessor-version":[{"id":81413,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/81412\/revisions\/81413"}],"wp:attachment":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/media?parent=81412"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/categories?post=81412"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/tags?post=81412"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}