{"id":77696,"date":"2024-10-16T11:01:18","date_gmt":"2024-10-16T03:01:18","guid":{"rendered":"https:\/\/server.hk\/cnblog\/77696\/"},"modified":"2024-10-16T11:01:18","modified_gmt":"2024-10-16T03:01:18","slug":"mysql%e6%8c%87%e4%bb%a4-and%ef%bc%88%e9%82%8f%e8%bc%af%e8%88%87%ef%bc%89","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/77696\/","title":{"rendered":"MySQL\u6307\u4ee4: AND\uff08\u908f\u8f2f\u8207\uff09"},"content":{"rendered":"<h1 id=\"mysql%e6%8c%87%e4%bb%a4-and%ef%bc%88%e9%82%8f%e8%bc%af%e8%88%87%ef%bc%89-GugZBopIIw\">MySQL\u6307\u4ee4: AND\uff08\u908f\u8f2f\u8207\uff09<\/h1>\n<p>\u5728\u8cc7\u6599\u5eab\u7ba1\u7406\u7cfb\u7d71\u4e2d\uff0cMySQL\u662f\u4e00\u500b\u5ee3\u6cdb\u4f7f\u7528\u7684\u958b\u6e90\u8cc7\u6599\u5eab\uff0c\u7279\u5225\u662f\u5728\u7db2\u9801\u61c9\u7528\u7a0b\u5f0f\u4e2d\u3002\u7576\u6211\u5011\u9700\u8981\u5f9e\u8cc7\u6599\u5eab\u4e2d\u6aa2\u7d22\u7279\u5b9a\u7684\u8cc7\u6599\u6642\uff0c\u4f7f\u7528\u67e5\u8a62\u8a9e\u8a00\uff08SQL\uff09\u662f\u5fc5\u4e0d\u53ef\u5c11\u7684\u3002\u5728\u9019\u7bc7\u6587\u7ae0\u4e2d\uff0c\u6211\u5011\u5c07\u6df1\u5165\u63a2\u8a0eMySQL\u4e2d\u7684\u908f\u8f2f\u904b\u7b97\u7b26\u4e4b\u4e00\u2014\u2014AND\uff08\u908f\u8f2f\u8207\uff09\uff0c\u4e26\u63d0\u4f9b\u4e00\u4e9b\u5be6\u969b\u7684\u7bc4\u4f8b\u4f86\u5e6b\u52a9\u7406\u89e3\u5176\u7528\u6cd5\u3002<\/p>\n<h2 id=\"and%e9%81%8b%e7%ae%97%e7%ac%a6%e7%9a%84%e5%9f%ba%e6%9c%ac%e6%a6%82%e5%bf%b5-GugZBopIIw\">AND\u904b\u7b97\u7b26\u7684\u57fa\u672c\u6982\u5ff5<\/h2>\n<p>\u5728SQL\u67e5\u8a62\u4e2d\uff0cAND\u904b\u7b97\u7b26\u7528\u65bc\u7d50\u5408\u591a\u500b\u689d\u4ef6\uff0c\u53ea\u6709\u7576\u6240\u6709\u689d\u4ef6\u90fd\u70ba\u771f\u6642\uff0c\u67e5\u8a62\u624d\u6703\u8fd4\u56de\u7d50\u679c\u3002\u9019\u4f7f\u5f97AND\u904b\u7b97\u7b26\u5728\u7be9\u9078\u8cc7\u6599\u6642\u975e\u5e38\u6709\u7528\uff0c\u7279\u5225\u662f\u7576\u6211\u5011\u9700\u8981\u6eff\u8db3\u591a\u500b\u689d\u4ef6\u6642\u3002<\/p>\n<h2 id=\"and%e9%81%8b%e7%ae%97%e7%ac%a6%e7%9a%84%e8%aa%9e%e6%b3%95-GugZBopIIw\">AND\u904b\u7b97\u7b26\u7684\u8a9e\u6cd5<\/h2>\n<p>AND\u904b\u7b97\u7b26\u7684\u57fa\u672c\u8a9e\u6cd5\u5982\u4e0b\uff1a<\/p>\n<pre><code>SELECT column1, column2, ...\nFROM table_name\nWHERE condition1 AND condition2;<\/code><\/pre>\n<p>\u5728\u9019\u88e1\uff0c<code>condition1<\/code>\u548c<code>condition2<\/code>\u662f\u9700\u8981\u6eff\u8db3\u7684\u689d\u4ef6\u3002\u53ea\u6709\u7576\u9019\u5169\u500b\u689d\u4ef6\u90fd\u70ba\u771f\u6642\uff0c\u67e5\u8a62\u624d\u6703\u8fd4\u56de\u76f8\u61c9\u7684\u8cc7\u6599\u3002<\/p>\n<h2 id=\"and%e9%81%8b%e7%ae%97%e7%ac%a6%e7%9a%84%e5%af%a6%e9%9a%9b%e7%af%84%e4%be%8b-GugZBopIIw\">AND\u904b\u7b97\u7b26\u7684\u5be6\u969b\u7bc4\u4f8b<\/h2>\n<p>\u4ee5\u4e0b\u662f\u4e00\u500b\u4f7f\u7528AND\u904b\u7b97\u7b26\u7684\u7bc4\u4f8b\uff0c\u5047\u8a2d\u6211\u5011\u6709\u4e00\u500b\u540d\u70ba<code>employees<\/code>\u7684\u8cc7\u6599\u8868\uff0c\u8a72\u8868\u5305\u542b\u54e1\u5de5\u7684\u59d3\u540d\u3001\u90e8\u9580\u548c\u85aa\u6c34\u7b49\u8cc7\u8a0a\u3002<\/p>\n<pre><code>SELECT name, department, salary\nFROM employees\nWHERE department = 'Sales' AND salary &gt; 50000;<\/code><\/pre>\n<p>\u5728\u9019\u500b\u67e5\u8a62\u4e2d\uff0c\u6211\u5011\u5e0c\u671b\u6aa2\u7d22\u6240\u6709\u5728\u300cSales\u300d\u90e8\u9580\u4e14\u85aa\u6c34\u9ad8\u65bc50,000\u7684\u54e1\u5de5\u3002\u53ea\u6709\u7576\u54e1\u5de5\u7684\u90e8\u9580\u70ba\u300cSales\u300d\u4e14\u85aa\u6c34\u8d85\u904e50,000\u6642\uff0c\u8a72\u54e1\u5de5\u7684\u8cc7\u6599\u624d\u6703\u88ab\u8fd4\u56de\u3002<\/p>\n<h2 id=\"%e5%a4%9a%e5%80%8b%e6%a2%9d%e4%bb%b6%e7%9a%84%e7%b5%84%e5%90%88-GugZBopIIw\">\u591a\u500b\u689d\u4ef6\u7684\u7d44\u5408<\/h2>\n<p>AND\u904b\u7b97\u7b26\u53ef\u4ee5\u8207\u5176\u4ed6\u904b\u7b97\u7b26\uff08\u5982OR\uff09\u7d50\u5408\u4f7f\u7528\uff0c\u4ee5\u5275\u5efa\u66f4\u8907\u96dc\u7684\u67e5\u8a62\u3002\u4f8b\u5982\uff0c\u5047\u8a2d\u6211\u5011\u60f3\u8981\u6aa2\u7d22\u300cSales\u300d\u90e8\u9580\u4e2d\u85aa\u6c34\u9ad8\u65bc50,000\u6216\u300cMarketing\u300d\u90e8\u9580\u4e2d\u85aa\u6c34\u9ad8\u65bc40,000\u7684\u54e1\u5de5\uff0c\u6211\u5011\u53ef\u4ee5\u9019\u6a23\u5beb\uff1a<\/p>\n<pre><code>SELECT name, department, salary\nFROM employees\nWHERE (department = 'Sales' AND salary &gt; 50000)\n   OR (department = 'Marketing' AND salary &gt; 40000);<\/code><\/pre>\n<p>\u5728\u9019\u500b\u67e5\u8a62\u4e2d\uff0c\u6211\u5011\u4f7f\u7528\u4e86\u62ec\u865f\u4f86\u660e\u78ba\u6307\u5b9a\u689d\u4ef6\u7684\u512a\u5148\u9806\u5e8f\uff0c\u78ba\u4fdd\u67e5\u8a62\u7684\u908f\u8f2f\u6b63\u78ba\u3002<\/p>\n<h2 id=\"%e6%b3%a8%e6%84%8f%e4%ba%8b%e9%a0%85-GugZBopIIw\">\u6ce8\u610f\u4e8b\u9805<\/h2>\n<p>\u5728\u4f7f\u7528AND\u904b\u7b97\u7b26\u6642\uff0c\u6709\u5e7e\u9ede\u9700\u8981\u6ce8\u610f\uff1a<\/p>\n<ul>\n<li>\u78ba\u4fdd\u6240\u6709\u689d\u4ef6\u7684\u908f\u8f2f\u95dc\u4fc2\u6b63\u78ba\uff0c\u907f\u514d\u56e0\u70ba\u908f\u8f2f\u932f\u8aa4\u800c\u5c0e\u81f4\u67e5\u8a62\u7d50\u679c\u4e0d\u6b63\u78ba\u3002<\/li>\n<li>\u5728\u8655\u7406\u5927\u91cf\u8cc7\u6599\u6642\uff0c\u8907\u96dc\u7684\u67e5\u8a62\u53ef\u80fd\u6703\u5f71\u97ff\u6027\u80fd\uff0c\u56e0\u6b64\u61c9\u8b39\u614e\u4f7f\u7528\u3002<\/li>\n<li>\u4f7f\u7528\u7d22\u5f15\u53ef\u4ee5\u63d0\u9ad8\u67e5\u8a62\u6548\u7387\uff0c\u7279\u5225\u662f\u5728\u6d89\u53ca\u591a\u500b\u689d\u4ef6\u7684\u60c5\u6cc1\u4e0b\u3002<\/li>\n<\/ul>\n<h2 id=\"%e7%b8%bd%e7%b5%90-GugZBopIIw\">\u7e3d\u7d50<\/h2>\n<p>AND\u904b\u7b97\u7b26\u5728MySQL\u4e2d\u662f\u4e00\u500b\u5f37\u5927\u7684\u5de5\u5177\uff0c\u80fd\u5920\u5e6b\u52a9\u7528\u6236\u6839\u64da\u591a\u500b\u689d\u4ef6\u7be9\u9078\u8cc7\u6599\u3002\u900f\u904e\u6b63\u78ba\u7684\u4f7f\u7528AND\u904b\u7b97\u7b26\uff0c\u958b\u767c\u8005\u53ef\u4ee5\u66f4\u7cbe\u78ba\u5730\u6aa2\u7d22\u6240\u9700\u7684\u8cc7\u6599\uff0c\u5f9e\u800c\u63d0\u9ad8\u61c9\u7528\u7a0b\u5f0f\u7684\u6548\u7387\u548c\u6027\u80fd\u3002\u82e5\u60a8\u5c0d\u65bc\u8cc7\u6599\u5eab\u7ba1\u7406\u6216\u5176\u4ed6\u76f8\u95dc\u6280\u8853\u6709\u8208\u8da3\uff0c\u6b61\u8fce\u63a2\u7d22\u6211\u5011\u7684 <a href=\"https:\/\/server.hk\">VPS<\/a> \u89e3\u6c7a\u65b9\u6848\uff0c\u7372\u53d6\u66f4\u591a\u8cc7\u8a0a\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u4e86\u89e3MySQL\u4e2d\u7684AND\u6307\u4ee4\uff0c\u5b78\u7fd2\u5982\u4f55\u5728\u67e5\u8a62\u4e2d\u4f7f\u7528\u908f\u8f2f\u8207\u904b\u7b97\u7b26\uff0c\u7cbe\u78ba\u7be9\u9078\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-77696","post","type-post","status-publish","format-standard","hentry","category-database"],"_links":{"self":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/77696","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=77696"}],"version-history":[{"count":1,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/77696\/revisions"}],"predecessor-version":[{"id":77697,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/77696\/revisions\/77697"}],"wp:attachment":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/media?parent=77696"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/categories?post=77696"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/tags?post=77696"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}