{"id":5632,"date":"2024-11-14T11:12:33","date_gmt":"2024-11-14T03:12:33","guid":{"rendered":"https:\/\/fwq.ai\/blog\/5632\/"},"modified":"2024-11-14T11:12:33","modified_gmt":"2024-11-14T03:12:33","slug":"sql%e8%af%ad%e5%8f%a5%e4%b8%8d%e7%ad%89%e4%ba%8e%e6%80%8e%e4%b9%88%e8%a1%a8%e7%a4%ba","status":"publish","type":"post","link":"https:\/\/fwq.ai\/blog\/5632\/","title":{"rendered":"sql\u8bed\u53e5\u4e0d\u7b49\u4e8e\u600e\u4e48\u8868\u793a"},"content":{"rendered":"<blockquote><p>\n  sql \u8bed\u53e5\u4e2d\u4e0d\u7b49\u4e8e\u7684\u7b26\u53f7\u4e3a &gt;\uff0c\u7528\u4e8e\u6bd4\u8f83\u4e24\u4e2a\u8868\u8fbe\u5f0f\u662f\u5426\u4e0d\u76f8\u7b49\u3002\u82e5\u4e0d\u76f8\u7b49\uff0c\u8fd4\u56de true\uff1b\u5426\u5219\uff0c\u8fd4\u56de false\u3002\u4f8b\u5982\uff1aselect * from table_name where column_name &#8216;value&#8217;\n<\/p><\/blockquote>\n<p><img decoding=\"async\" src=\"https:\/\/img.php.cn\/upload\/article\/202405\/30\/2024053019242795043.jpg\" class=\"aligncenter\" title=\"sql\u8bed\u53e5\u4e0d\u7b49\u4e8e\u600e\u4e48\u8868\u793a\u63d2\u56fe\" alt=\"sql\u8bed\u53e5\u4e0d\u7b49\u4e8e\u600e\u4e48\u8868\u793a\u63d2\u56fe\" \/><\/p>\n<p><strong>SQL\u8bed\u53e5\u4e0d\u7b49\u4e8e\u7684\u7b26\u53f7<\/strong><\/p>\n<p>SQL\u8bed\u53e5\u4e2d\u4e0d\u7b49\u4e8e\u7684\u7b26\u53f7\u4e3a<strong><\/strong>\u3002<\/p>\n<p><strong>\u7528\u6cd5\uff1a<\/strong><\/p>\n<p>\u7b26\u53f7\u7528\u4e8e\u6bd4\u8f83\u4e24\u4e2a\u8868\u8fbe\u5f0f\u662f\u5426\u4e0d\u76f8\u7b49\u3002\u5982\u679c\u4e24\u4e2a\u8868\u8fbe\u5f0f\u4e0d\u76f8\u7b49\uff0c\u5219\u8fd4\u56detrue\uff0c\u5426\u5219\u8fd4\u56defalse\u3002<\/p>\n<p><strong>\u793a\u4f8b\uff1a<\/strong><\/p>\n<pre>SELECT * FROM table_name WHERE column_name &lt;&gt; 'value';<\/pre>\n<p> \u767b\u5f55\u540e\u590d\u5236 <\/p>\n<p>\u4ee5\u4e0a\u8bed\u53e5\u5c06\u4ecetable_name\u8868\u4e2d\u9009\u62e9\u6240\u6709column_name\u5b57\u6bb5\u4e0d\u7b49\u4e8e&#8217;value&#8217;\u7684\u6240\u6709\u884c\u3002<\/p>\n<p><strong>\u6ce8\u610f\uff1a<\/strong><\/p>\n<ul>\n<li>\u7b26\u53f7\u4e5f\u53ef\u4ee5\u5199\u6210!=\u3002<\/li>\n<li>\u5bf9\u4e8e\u5b57\u7b26\u4e32\u6bd4\u8f83\uff0c\u7b26\u53f7\u4f1a\u533a\u5206\u5927\u5c0f\u5199\u3002<\/li>\n<li>\u5bf9\u4e8e\u6570\u5b57\u6bd4\u8f83\uff0c\u7b26\u53f7\u4e0d\u4f1a\u533a\u5206\u5927\u5c0f\u5199\u3002<\/li>\n<\/ul>\n<p>\u4ee5\u4e0a\u5c31\u662f\u4e0d\u7b49\u4e8e\u600e\u4e48\u8868\u793a\u7684\u8be6\u7ec6\u5185\u5bb9\uff0c\u66f4\u591a\u8bf7\u5173\u6ce8\u7c73\u4e91\u7f51\u5176\u5b83\u76f8\u5173\u6587\u7ae0\uff01<\/p>\n","protected":false},"excerpt":{"rendered":"<p>sql \u8bed\u53e5\u4e2d\u4e0d\u7b49\u4e8e\u7684\u7b26\u53f7\u4e3a &gt;\uff0c\u7528\u4e8e\u6bd4\u8f83\u4e24\u4e2a\u8868\u8fbe\u5f0f\u662f\u5426\u4e0d\u76f8\u7b49\u3002\u82e5\u4e0d\u76f8\u7b49\uff0c\u8fd4\u56de true\uff1b\u5426\u5219\uff0c\u8fd4\u56de false\u3002\u4f8b\u5982\uff1aselect * from table_name where column_name &#8216;value&#8217; SQL\u8bed\u53e5\u4e0d\u7b49\u4e8e\u7684\u7b26\u53f7 SQL\u8bed\u53e5\u4e2d\u4e0d\u7b49\u4e8e\u7684\u7b26\u53f7\u4e3a\u3002 \u7528\u6cd5\uff1a \u7b26\u53f7\u7528\u4e8e\u6bd4\u8f83\u4e24\u4e2a\u8868\u8fbe\u5f0f\u662f\u5426\u4e0d\u76f8\u7b49\u3002\u5982\u679c\u4e24\u4e2a\u8868\u8fbe\u5f0f\u4e0d\u76f8\u7b49\uff0c\u5219\u8fd4\u56detrue\uff0c\u5426\u5219\u8fd4\u56defalse\u3002 \u793a\u4f8b\uff1a SELECT * FROM table_name WHERE column_name &lt;&gt; &#8216;value&#8217;; \u767b\u5f55\u540e\u590d\u5236 \u4ee5\u4e0a\u8bed\u53e5\u5c06\u4ecetable_name\u8868\u4e2d\u9009\u62e9\u6240\u6709column_name\u5b57\u6bb5\u4e0d\u7b49\u4e8e&#8217;value&#8217;\u7684\u6240\u6709\u884c\u3002 \u6ce8\u610f\uff1a \u7b26\u53f7\u4e5f\u53ef\u4ee5\u5199\u6210!=\u3002 \u5bf9\u4e8e\u5b57\u7b26\u4e32\u6bd4\u8f83\uff0c\u7b26\u53f7\u4f1a\u533a\u5206\u5927\u5c0f\u5199\u3002 \u5bf9\u4e8e\u6570\u5b57\u6bd4\u8f83\uff0c\u7b26\u53f7\u4e0d\u4f1a\u533a\u5206\u5927\u5c0f\u5199\u3002 \u4ee5\u4e0a\u5c31\u662f\u4e0d\u7b49\u4e8e\u600e\u4e48\u8868\u793a\u7684\u8be6\u7ec6\u5185\u5bb9\uff0c\u66f4\u591a\u8bf7\u5173\u6ce8\u7c73\u4e91\u7f51\u5176\u5b83\u76f8\u5173\u6587\u7ae0\uff01<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[16],"tags":[],"class_list":["post-5632","post","type-post","status-publish","format-standard","hentry","category-16"],"_links":{"self":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/posts\/5632","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/comments?post=5632"}],"version-history":[{"count":0,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/posts\/5632\/revisions"}],"wp:attachment":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/media?parent=5632"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/categories?post=5632"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/tags?post=5632"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}