{"id":168189,"date":"2024-11-06T10:16:28","date_gmt":"2024-11-06T02:16:28","guid":{"rendered":"https:\/\/server.hk\/cnblog\/168189\/"},"modified":"2024-11-06T10:16:29","modified_gmt":"2024-11-06T02:16:29","slug":"%e9%82%8f%e8%bc%af%e6%88%96%e9%81%8b%e7%ae%97%e7%ac%a6%e5%9c%a8%e6%95%b8%e6%93%9a%e5%ba%ab%e4%b8%ad%e7%9a%84%e6%87%89%e7%94%a8-%e9%82%8f%e8%bc%af%e6%88%96%e9%81%8b%e7%ae%97%e7%ac%a6%e6%95%b8%e6%93%9a","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/168189\/","title":{"rendered":"\u908f\u8f2f\u6216\u904b\u7b97\u7b26\u5728\u6578\u64da\u5eab\u4e2d\u7684\u61c9\u7528 (\u908f\u8f2f\u6216\u904b\u7b97\u7b26\u6578\u64da\u5eab)"},"content":{"rendered":"<h1 id=\"%e9%82%8f%e8%bc%af%e6%88%96%e9%81%8b%e7%ae%97%e7%ac%a6%e5%9c%a8%e6%95%b8%e6%93%9a%e5%ba%ab%e4%b8%ad%e7%9a%84%e6%87%89%e7%94%a8-WkvxjybOEC\">\u908f\u8f2f\u6216\u904b\u7b97\u7b26\u5728\u6578\u64da\u5eab\u4e2d\u7684\u61c9\u7528<\/h1>\n<p>\u5728\u6578\u64da\u5eab\u7ba1\u7406\u7cfb\u7d71\u4e2d\uff0c\u908f\u8f2f\u904b\u7b97\u7b26\u662f\u7528\u4f86\u9032\u884c\u6578\u64da\u67e5\u8a62\u548c\u6578\u64da\u64cd\u4f5c\u7684\u91cd\u8981\u5de5\u5177\u3002\u9019\u4e9b\u904b\u7b97\u7b26\u80fd\u5920\u5e6b\u52a9\u7528\u6236\u66f4\u6709\u6548\u5730\u7be9\u9078\u548c\u8655\u7406\u6578\u64da\uff0c\u5f9e\u800c\u63d0\u9ad8\u6578\u64da\u5eab\u7684\u4f7f\u7528\u6548\u7387\u3002\u672c\u6587\u5c07\u63a2\u8a0e\u908f\u8f2f\u904b\u7b97\u7b26\u7684\u57fa\u672c\u6982\u5ff5\u3001\u5e38\u898b\u985e\u578b\u53ca\u5176\u5728\u6578\u64da\u5eab\u67e5\u8a62\u4e2d\u7684\u61c9\u7528\u3002<\/p>\n<h2 id=\"%e9%82%8f%e8%bc%af%e9%81%8b%e7%ae%97%e7%ac%a6%e7%9a%84%e5%9f%ba%e6%9c%ac%e6%a6%82%e5%bf%b5-WkvxjybOEC\">\u908f\u8f2f\u904b\u7b97\u7b26\u7684\u57fa\u672c\u6982\u5ff5<\/h2>\n<p>\u908f\u8f2f\u904b\u7b97\u7b26\u4e3b\u8981\u7528\u65bc\u5e03\u723e\u908f\u8f2f\u4e2d\uff0c\u901a\u5e38\u7528\u4f86\u8655\u7406\u771f\uff08True\uff09\u548c\u5047\uff08False\uff09\u5169\u7a2e\u72c0\u614b\u3002\u5728\u6578\u64da\u5eab\u67e5\u8a62\u4e2d\uff0c\u908f\u8f2f\u904b\u7b97\u7b26\u53ef\u4ee5\u7528\u4f86\u7d44\u5408\u591a\u500b\u689d\u4ef6\uff0c\u5f9e\u800c\u5f62\u6210\u8907\u96dc\u7684\u67e5\u8a62\u8a9e\u53e5\u3002\u6700\u5e38\u898b\u7684\u908f\u8f2f\u904b\u7b97\u7b26\u5305\u62ec\uff1a<\/p>\n<ul>\n<li><strong>AND<\/strong>\uff1a\u7576\u6240\u6709\u689d\u4ef6\u90fd\u70ba\u771f\u6642\uff0c\u7d50\u679c\u70ba\u771f\u3002<\/li>\n<li><strong>OR<\/strong>\uff1a\u7576\u81f3\u5c11\u4e00\u500b\u689d\u4ef6\u70ba\u771f\u6642\uff0c\u7d50\u679c\u70ba\u771f\u3002<\/li>\n<li><strong>NOT<\/strong>\uff1a\u7528\u65bc\u53cd\u8f49\u689d\u4ef6\u7684\u771f\u503c\u3002<\/li>\n<\/ul>\n<h2 id=\"%e9%82%8f%e8%bc%af%e9%81%8b%e7%ae%97%e7%ac%a6%e7%9a%84%e6%87%89%e7%94%a8%e7%a4%ba%e4%be%8b-WkvxjybOEC\">\u908f\u8f2f\u904b\u7b97\u7b26\u7684\u61c9\u7528\u793a\u4f8b<\/h2>\n<p>\u5728 SQL \u67e5\u8a62\u4e2d\uff0c\u908f\u8f2f\u904b\u7b97\u7b26\u7684\u4f7f\u7528\u975e\u5e38\u666e\u904d\u3002\u4ee5\u4e0b\u662f\u4e00\u4e9b\u793a\u4f8b\uff0c\u5c55\u793a\u4e86\u5982\u4f55\u5728 SQL \u4e2d\u4f7f\u7528\u9019\u4e9b\u904b\u7b97\u7b26\u3002<\/p>\n<h3 id=\"%e4%bd%bf%e7%94%a8-and-%e9%81%8b%e7%ae%97%e7%ac%a6-WkvxjybOEC\">\u4f7f\u7528 AND \u904b\u7b97\u7b26<\/h3>\n<pre><code>SELECT * FROM customers \nWHERE country = 'Hong Kong' \nAND age &gt; 30;<\/code><\/pre>\n<p>\u4e0a\u8ff0\u67e5\u8a62\u5c07\u8fd4\u56de\u6240\u6709\u4f86\u81ea\u9999\u6e2f\u4e14\u5e74\u9f61\u5927\u65bc 30 \u6b72\u7684\u5ba2\u6236\u8a18\u9304\u3002\u9019\u88e1\u4f7f\u7528\u4e86 AND \u904b\u7b97\u7b26\u4f86\u78ba\u4fdd\u5169\u500b\u689d\u4ef6\u540c\u6642\u6eff\u8db3\u3002<\/p>\n<h3 id=\"%e4%bd%bf%e7%94%a8-or-%e9%81%8b%e7%ae%97%e7%ac%a6-WkvxjybOEC\">\u4f7f\u7528 OR \u904b\u7b97\u7b26<\/h3>\n<pre><code>SELECT * FROM products \nWHERE category = 'Electronics' \nOR category = 'Books';<\/code><\/pre>\n<p>\u9019\u500b\u67e5\u8a62\u5c07\u8fd4\u56de\u6240\u6709\u985e\u5225\u70ba\u96fb\u5b50\u7522\u54c1\u6216\u66f8\u7c4d\u7684\u7522\u54c1\u8a18\u9304\u3002\u4f7f\u7528 OR \u904b\u7b97\u7b26\u53ef\u4ee5\u64f4\u5927\u67e5\u8a62\u7684\u7bc4\u570d\uff0c\u7372\u53d6\u591a\u500b\u985e\u5225\u7684\u6578\u64da\u3002<\/p>\n<h3 id=\"%e4%bd%bf%e7%94%a8-not-%e9%81%8b%e7%ae%97%e7%ac%a6-WkvxjybOEC\">\u4f7f\u7528 NOT \u904b\u7b97\u7b26<\/h3>\n<pre><code>SELECT * FROM employees \nWHERE NOT department = 'Sales';<\/code><\/pre>\n<p>\u9019\u500b\u67e5\u8a62\u5c07\u8fd4\u56de\u6240\u6709\u4e0d\u5728\u92b7\u552e\u90e8\u9580\u7684\u54e1\u5de5\u8a18\u9304\u3002NOT \u904b\u7b97\u7b26\u7528\u65bc\u6392\u9664\u7279\u5b9a\u689d\u4ef6\u7684\u6578\u64da\u3002<\/p>\n<h2 id=\"%e9%82%8f%e8%bc%af%e9%81%8b%e7%ae%97%e7%ac%a6%e7%9a%84%e7%b5%84%e5%90%88%e4%bd%bf%e7%94%a8-WkvxjybOEC\">\u908f\u8f2f\u904b\u7b97\u7b26\u7684\u7d44\u5408\u4f7f\u7528<\/h2>\n<p>\u5728\u5be6\u969b\u61c9\u7528\u4e2d\uff0c\u908f\u8f2f\u904b\u7b97\u7b26\u7d93\u5e38\u88ab\u7d44\u5408\u4f7f\u7528\uff0c\u4ee5\u6eff\u8db3\u66f4\u8907\u96dc\u7684\u67e5\u8a62\u9700\u6c42\u3002\u4f8b\u5982\uff1a<\/p>\n<pre><code>SELECT * FROM orders \nWHERE (status = 'Shipped' OR status = 'Pending') \nAND order_date &gt; '2023-01-01';<\/code><\/pre>\n<p>\u9019\u500b\u67e5\u8a62\u5c07\u8fd4\u56de\u6240\u6709\u72c0\u614b\u70ba\u5df2\u767c\u8ca8\u6216\u5f85\u8655\u7406\uff0c\u4e14\u8a02\u55ae\u65e5\u671f\u5728 2023 \u5e74 1 \u6708 1 \u65e5\u4e4b\u5f8c\u7684\u8a02\u55ae\u8a18\u9304\u3002\u901a\u904e\u4f7f\u7528\u62ec\u865f\uff0c\u53ef\u4ee5\u660e\u78ba\u904b\u7b97\u7684\u512a\u5148\u9806\u5e8f\uff0c\u78ba\u4fdd\u67e5\u8a62\u7684\u6b63\u78ba\u6027\u3002<\/p>\n<h2 id=\"%e7%b5%90%e8%ab%96-WkvxjybOEC\">\u7d50\u8ad6<\/h2>\n<p>\u908f\u8f2f\u904b\u7b97\u7b26\u5728\u6578\u64da\u5eab\u67e5\u8a62\u4e2d\u626e\u6f14\u8457\u81f3\u95dc\u91cd\u8981\u7684\u89d2\u8272\uff0c\u80fd\u5920\u5e6b\u52a9\u7528\u6236\u9748\u6d3b\u5730\u7be9\u9078\u548c\u64cd\u4f5c\u6578\u64da\u3002\u901a\u904e\u5408\u7406\u4f7f\u7528 AND\u3001OR \u548c NOT \u7b49\u904b\u7b97\u7b26\uff0c\u7528\u6236\u53ef\u4ee5\u69cb\u5efa\u51fa\u8907\u96dc\u7684\u67e5\u8a62\u8a9e\u53e5\uff0c\u5f9e\u800c\u7372\u53d6\u6240\u9700\u7684\u4fe1\u606f\u3002\u96a8\u8457\u6578\u64da\u5eab\u6280\u8853\u7684\u767c\u5c55\uff0c\u5c0d\u908f\u8f2f\u904b\u7b97\u7b26\u7684\u7406\u89e3\u548c\u61c9\u7528\u5c07\u8b8a\u5f97\u8d8a\u4f86\u8d8a\u91cd\u8981\u3002<\/p>\n<p>\u5982\u679c\u60a8\u5c0d\u65bc\u6578\u64da\u5eab\u7ba1\u7406\u6216\u5176\u4ed6\u76f8\u95dc\u6280\u8853\u6709\u8208\u8da3\uff0c\u6b61\u8fce\u8a2a\u554f\u6211\u5011\u7684\u7db2\u7ad9\u4e86\u89e3\u66f4\u591a\u8cc7\u8a0a\uff0c\u7279\u5225\u662f\u6211\u5011\u63d0\u4f9b\u7684 <a href=\"https:\/\/server.hk\">\u9999\u6e2fVPS<\/a> \u670d\u52d9\uff0c\u52a9\u60a8\u8f15\u9b06\u7ba1\u7406\u6578\u64da\u5eab\u548c\u61c9\u7528\u7a0b\u5e8f\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u63a2\u7d22\u908f\u8f2f\u6216\u904b\u7b97\u7b26\u5728\u6578\u64da\u5eab\u4e2d\u7684\u61c9\u7528\uff0c\u4e86\u89e3\u5982\u4f55\u6709\u6548\u7be9\u9078\u548c\u67e5\u8a62\u6578\u64da\u4ee5\u63d0\u5347\u6578\u64da\u7ba1\u7406\u6548\u7387\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-168189","post","type-post","status-publish","format-standard","hentry","category-database"],"_links":{"self":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/168189","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=168189"}],"version-history":[{"count":1,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/168189\/revisions"}],"predecessor-version":[{"id":168190,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/168189\/revisions\/168190"}],"wp:attachment":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/media?parent=168189"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/categories?post=168189"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/tags?post=168189"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}