{"id":183538,"date":"2024-11-10T05:39:19","date_gmt":"2024-11-09T21:39:19","guid":{"rendered":"https:\/\/server.hk\/cnblog\/183538\/"},"modified":"2024-11-10T05:39:19","modified_gmt":"2024-11-09T21:39:19","slug":"%e4%bd%bf%e7%94%a8-or-%e9%80%b2%e8%a1%8c%e5%a4%9a%e6%a2%9d%e4%bb%b6%e6%9f%a5%e8%a9%a2%ef%bc%8c%e8%ae%93%e6%95%b8%e6%93%9a%e5%ba%ab%e6%9b%b4%e6%99%ba%e8%83%bd%e5%8c%96-%e6%95%b8%e6%93%9a%e5%ba%ab","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/183538\/","title":{"rendered":"\u4f7f\u7528 OR \u9032\u884c\u591a\u689d\u4ef6\u67e5\u8a62\uff0c\u8b93\u6578\u64da\u5eab\u66f4\u667a\u80fd\u5316 (\u6578\u64da\u5eab\u7528or\u9032\u884c\u591a\u689d\u4ef6\u67e5\u8a62)"},"content":{"rendered":"

\u4f7f\u7528 OR \u9032\u884c\u591a\u689d\u4ef6\u67e5\u8a62\uff0c\u8b93\u6578\u64da\u5eab\u66f4\u667a\u80fd\u5316<\/h1>\n

\u5728\u7576\u4eca\u6578\u64da\u9a45\u52d5\u7684\u4e16\u754c\u4e2d\uff0c\u6578\u64da\u5eab\u7684\u67e5\u8a62\u6548\u7387\u548c\u9748\u6d3b\u6027\u5c0d\u65bc\u4f01\u696d\u7684\u904b\u71df\u81f3\u95dc\u91cd\u8981\u3002\u5c24\u5176\u662f\u5728\u8655\u7406\u5927\u91cf\u6578\u64da\u6642\uff0c\u5982\u4f55\u6709\u6548\u5730\u9032\u884c\u591a\u689d\u4ef6\u67e5\u8a62\u6210\u70ba\u4e86\u6578\u64da\u5eab\u7ba1\u7406\u4e2d\u7684\u4e00\u500b\u91cd\u8981\u8ab2\u984c\u3002\u672c\u6587\u5c07\u63a2\u8a0e\u5982\u4f55\u4f7f\u7528 OR \u9032\u884c\u591a\u689d\u4ef6\u67e5\u8a62\uff0c\u4e26\u5206\u6790\u5176\u5728\u6578\u64da\u5eab\u667a\u80fd\u5316\u65b9\u9762\u7684\u61c9\u7528\u3002<\/p>\n

\u4ec0\u9ebc\u662f\u591a\u689d\u4ef6\u67e5\u8a62\uff1f<\/h2>\n

\u591a\u689d\u4ef6\u67e5\u8a62\u662f\u6307\u5728\u6578\u64da\u5eab\u67e5\u8a62\u4e2d\u540c\u6642\u4f7f\u7528\u591a\u500b\u689d\u4ef6\u4f86\u7be9\u9078\u6578\u64da\u3002\u9019\u4e9b\u689d\u4ef6\u53ef\u4ee5\u662f\u76f8\u540c\u7684\u5b57\u6bb5\uff0c\u4e5f\u53ef\u4ee5\u662f\u4e0d\u540c\u7684\u5b57\u6bb5\u3002\u4f7f\u7528 OR \u9032\u884c\u591a\u689d\u4ef6\u67e5\u8a62\u6642\uff0c\u67e5\u8a62\u7d50\u679c\u5c07\u8fd4\u56de\u6eff\u8db3\u4efb\u4e00\u689d\u4ef6\u7684\u6578\u64da\u884c\u3002\u9019\u7a2e\u67e5\u8a62\u65b9\u5f0f\u7279\u5225\u9069\u5408\u65bc\u9700\u8981\u5f9e\u591a\u500b\u53ef\u80fd\u7684\u9078\u9805\u4e2d\u7372\u53d6\u6578\u64da\u7684\u60c5\u6cc1\u3002<\/p>\n

OR \u7684\u57fa\u672c\u7528\u6cd5<\/h2>\n

\u5728 SQL \u4e2d\uff0cOR \u95dc\u9375\u5b57\u7528\u65bc\u9023\u63a5\u5169\u500b\u6216\u591a\u500b\u689d\u4ef6\u3002\u7576\u4f7f\u7528 OR \u6642\uff0c\u53ea\u8981\u6709\u4e00\u500b\u689d\u4ef6\u70ba\u771f\uff0c\u8a72\u884c\u6578\u64da\u5c31\u6703\u88ab\u9078\u4e2d\u3002\u4ee5\u4e0b\u662f\u4e00\u500b\u7c21\u55ae\u7684\u793a\u4f8b\uff1a<\/p>\n

SELECT * FROM customers \nWHERE city = 'Hong Kong' \nOR city = 'Taipei';<\/code><\/pre>\n
\u5728\u9019\u500b\u67e5\u8a62\u4e2d\uff0c\u6578\u64da\u5eab\u5c07\u8fd4\u56de\u6240\u6709\u4f86\u81ea\u9999\u6e2f\u6216\u53f0\u5317\u7684\u5ba2\u6236\u8cc7\u6599\u3002\u9019\u6a23\u7684\u67e5\u8a62\u65b9\u5f0f\u4f7f\u5f97\u7528\u6236\u80fd\u5920\u9748\u6d3b\u5730\u7372\u53d6\u6240\u9700\u7684\u6578\u64da\u3002<\/p>\n
\u4f7f\u7528 OR \u9032\u884c\u8907\u96dc\u67e5\u8a62<\/h2>\n
\u5728\u5be6\u969b\u61c9\u7528\u4e2d\uff0c\u67e5\u8a62\u689d\u4ef6\u5f80\u5f80\u4e0d\u6b62\u5169\u500b\u3002\u4f7f\u7528 OR \u9032\u884c\u8907\u96dc\u67e5\u8a62\u6642\uff0c\u53ef\u4ee5\u5c07\u591a\u500b\u689d\u4ef6\u7d44\u5408\u5728\u4e00\u8d77\u3002\u4f8b\u5982\uff1a<\/p>\n
SELECT * FROM products \nWHERE category = 'Electronics' \nOR category = 'Books' \nOR price < 100;<\/code><\/pre>\n
\u9019\u500b\u67e5\u8a62\u5c07\u8fd4\u56de\u6240\u6709\u96fb\u5b50\u7522\u54c1\u3001\u66f8\u7c4d\u4ee5\u53ca\u50f9\u683c\u4f4e\u65bc 100 \u7684\u7522\u54c1\u3002\u9019\u6a23\u7684\u67e5\u8a62\u4e0d\u50c5\u63d0\u9ad8\u4e86\u67e5\u8a62\u7684\u9748\u6d3b\u6027\uff0c\u9084\u80fd\u5920\u5feb\u901f\u7372\u53d6\u591a\u6a23\u5316\u7684\u6578\u64da\u3002<\/p>\n
OR \u8207 AND \u7684\u7d50\u5408\u4f7f\u7528<\/h2>\n
\u5728\u8a31\u591a\u60c5\u6cc1\u4e0b\uff0c\u50c5\u4f7f\u7528 OR \u53ef\u80fd\u7121\u6cd5\u6eff\u8db3\u67e5\u8a62\u9700\u6c42\u3002\u9019\u6642\uff0c\u53ef\u4ee5\u5c07 OR \u8207 AND \u7d50\u5408\u4f7f\u7528\uff0c\u4ee5\u9054\u5230\u66f4\u7cbe\u78ba\u7684\u67e5\u8a62\u7d50\u679c\u3002\u4f8b\u5982\uff1a<\/p>\n
SELECT * FROM orders \nWHERE status = 'shipped' \nAND (payment_method = 'credit card' OR payment_method = 'PayPal');<\/code><\/pre>\n
\u9019\u500b\u67e5\u8a62\u5c07\u8fd4\u56de\u6240\u6709\u5df2\u767c\u8ca8\u7684\u8a02\u55ae\uff0c\u4e26\u4e14\u652f\u4ed8\u65b9\u5f0f\u70ba\u4fe1\u7528\u5361\u6216 PayPal \u7684\u8a02\u55ae\u3002\u901a\u904e\u9019\u7a2e\u65b9\u5f0f\uff0c\u6578\u64da\u5eab\u67e5\u8a62\u7684\u667a\u80fd\u5316\u7a0b\u5ea6\u5f97\u5230\u4e86\u9032\u4e00\u6b65\u63d0\u5347\u3002<\/p>\n
\u6027\u80fd\u8003\u91cf<\/h2>\n
\u96d6\u7136\u4f7f\u7528 OR \u9032\u884c\u591a\u689d\u4ef6\u67e5\u8a62\u80fd\u5920\u63d0\u9ad8\u67e5\u8a62\u7684\u9748\u6d3b\u6027\uff0c\u4f46\u5728\u6027\u80fd\u4e0a\u4e5f\u9700\u8981\u8b39\u614e\u8003\u91cf\u3002\u904e\u591a\u7684 OR \u689d\u4ef6\u53ef\u80fd\u6703\u5c0e\u81f4\u67e5\u8a62\u6548\u7387\u4e0b\u964d\uff0c\u7279\u5225\u662f\u5728\u6578\u64da\u91cf\u9f90\u5927\u7684\u60c5\u6cc1\u4e0b\u3002\u56e0\u6b64\uff0c\u5728\u8a2d\u8a08\u6578\u64da\u5eab\u67e5\u8a62\u6642\uff0c\u61c9\u8a72\u6839\u64da\u5be6\u969b\u9700\u6c42\u5408\u7406\u4f7f\u7528 OR\uff0c\u4e26\u8003\u616e\u4f7f\u7528\u7d22\u5f15\u4f86\u512a\u5316\u67e5\u8a62\u6027\u80fd\u3002<\/p>\n
\u7d50\u8ad6<\/h2>\n
\u4f7f\u7528 OR \u9032\u884c\u591a\u689d\u4ef6\u67e5\u8a62\u662f\u4e00\u7a2e\u6709\u6548\u7684\u6578\u64da\u5eab\u67e5\u8a62\u6280\u8853\uff0c\u80fd\u5920\u5e6b\u52a9\u7528\u6236\u9748\u6d3b\u5730\u7372\u53d6\u6240\u9700\u6578\u64da\u3002\u901a\u904e\u5408\u7406\u7d44\u5408 OR \u548c AND\uff0c\u4e26\u8003\u616e\u6027\u80fd\u512a\u5316\uff0c\u6578\u64da\u5eab\u7684\u667a\u80fd\u5316\u7a0b\u5ea6\u5c07\u986f\u8457\u63d0\u9ad8\u3002\u5c0d\u65bc\u9700\u8981\u8655\u7406\u5927\u91cf\u6578\u64da\u7684\u4f01\u696d\u4f86\u8aaa\uff0c\u638c\u63e1\u9019\u4e9b\u67e5\u8a62\u6280\u5de7\u5c07\u6709\u52a9\u65bc\u63d0\u5347\u6578\u64da\u7ba1\u7406\u7684\u6548\u7387\u3002<\/p>\n
\u5982\u9700\u4e86\u89e3\u66f4\u591a\u95dc\u65bc \u9999\u6e2fVPS<\/a> \u548c\u6578\u64da\u5eab\u7ba1\u7406\u7684\u8cc7\u8a0a\uff0c\u8acb\u8a2a\u554f\u6211\u5011\u7684\u7db2\u7ad9\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"
\u4f7f\u7528 OR \u9032\u884c\u591a\u689d\u4ef6\u67e5\u8a62\uff0c\u63d0\u5347\u6578\u64da\u5eab\u667a\u80fd\u5316\uff0c\u5be6\u73fe\u9748\u6d3b\u9ad8\u6548\u7684\u6578\u64da\u6aa2\u7d22\uff0c\u6eff\u8db3\u591a\u6a23\u5316\u9700\u6c42\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-183538","post","type-post","status-publish","format-standard","hentry","category-database"],"_links":{"self":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/183538","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=183538"}],"version-history":[{"count":1,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/183538\/revisions"}],"predecessor-version":[{"id":183539,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/183538\/revisions\/183539"}],"wp:attachment":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/media?parent=183538"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/categories?post=183538"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/tags?post=183538"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}