{"id":79192,"date":"2024-10-16T12:48:15","date_gmt":"2024-10-16T04:48:15","guid":{"rendered":"https:\/\/server.hk\/cnblog\/79192\/"},"modified":"2024-10-16T12:48:15","modified_gmt":"2024-10-16T04:48:15","slug":"mysql%e6%8c%87%e4%bb%a4-min%ef%bc%88%e6%9c%80%e5%b0%8f%e5%80%bc%ef%bc%89","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/79192\/","title":{"rendered":"MySQL\u6307\u4ee4: MIN()\uff08\u6700\u5c0f\u503c\uff09"},"content":{"rendered":"<h1 id=\"mysql%e6%8c%87%e4%bb%a4-min%ef%bc%88%e6%9c%80%e5%b0%8f%e5%80%bc%ef%bc%89-OXvLtKkHNz\">MySQL\u6307\u4ee4: MIN()\uff08\u6700\u5c0f\u503c\uff09<\/h1>\n<p>\u5728\u6578\u64da\u5eab\u7ba1\u7406\u4e2d\uff0cMySQL\u662f\u4e00\u500b\u5ee3\u6cdb\u4f7f\u7528\u7684\u95dc\u806f\u6578\u64da\u5eab\u7ba1\u7406\u7cfb\u7d71\u3002\u5b83\u63d0\u4f9b\u4e86\u591a\u7a2e\u529f\u80fd\u4f86\u8655\u7406\u548c\u67e5\u8a62\u6578\u64da\uff0c\u5176\u4e2d\u4e4b\u4e00\u5c31\u662f\u805a\u5408\u51fd\u6578\u3002\u805a\u5408\u51fd\u6578\u53ef\u4ee5\u5c0d\u4e00\u7d44\u6578\u64da\u9032\u884c\u8a08\u7b97\uff0c\u4e26\u8fd4\u56de\u55ae\u4e00\u7684\u503c\u3002MIN()\u51fd\u6578\u662f\u5176\u4e2d\u4e00\u500b\u5e38\u7528\u7684\u805a\u5408\u51fd\u6578\uff0c\u7528\u65bc\u67e5\u8a62\u67d0\u4e00\u5217\u4e2d\u7684\u6700\u5c0f\u503c\u3002<\/p>\n<h2 id=\"min%e5%87%bd%e6%95%b8%e7%9a%84%e5%9f%ba%e6%9c%ac%e8%aa%9e%e6%b3%95-OXvLtKkHNz\">MIN()\u51fd\u6578\u7684\u57fa\u672c\u8a9e\u6cd5<\/h2>\n<p>MIN()\u51fd\u6578\u7684\u57fa\u672c\u8a9e\u6cd5\u5982\u4e0b\uff1a<\/p>\n<pre><code>SELECT MIN(column_name) FROM table_name WHERE condition;<\/code><\/pre>\n<p>\u5728\u9019\u88e1\uff0c<code>column_name<\/code>\u662f\u4f60\u60f3\u8981\u67e5\u8a62\u6700\u5c0f\u503c\u7684\u5217\u540d\uff0c<code>table_name<\/code>\u662f\u6578\u64da\u8868\u7684\u540d\u7a31\uff0c\u800c<code>condition<\/code>\u5247\u662f\u53ef\u9078\u7684\u689d\u4ef6\uff0c\u7528\u65bc\u904e\u6ffe\u6578\u64da\u3002<\/p>\n<h2 id=\"%e4%bd%bf%e7%94%a8%e7%af%84%e4%be%8b-OXvLtKkHNz\">\u4f7f\u7528\u7bc4\u4f8b<\/h2>\n<p>\u5047\u8a2d\u6211\u5011\u6709\u4e00\u500b\u540d\u70ba<code>employees<\/code>\u7684\u6578\u64da\u8868\uff0c\u8a72\u8868\u5305\u542b\u4ee5\u4e0b\u5217\uff1a<\/p>\n<ul>\n<li><code>id<\/code> &#8211; \u54e1\u5de5ID<\/li>\n<li><code>name<\/code> &#8211; \u54e1\u5de5\u59d3\u540d<\/li>\n<li><code>salary<\/code> &#8211; \u54e1\u5de5\u85aa\u6c34<\/li>\n<\/ul>\n<p>\u5982\u679c\u6211\u5011\u60f3\u8981\u67e5\u8a62\u6240\u6709\u54e1\u5de5\u4e2d\u85aa\u6c34\u7684\u6700\u5c0f\u503c\uff0c\u53ef\u4ee5\u4f7f\u7528\u4ee5\u4e0b\u6307\u4ee4\uff1a<\/p>\n<pre><code>SELECT MIN(salary) AS MinimumSalary FROM employees;<\/code><\/pre>\n<p>\u9019\u689d\u6307\u4ee4\u5c07\u8fd4\u56de<code>employees<\/code>\u8868\u4e2d<code>salary<\/code>\u5217\u7684\u6700\u5c0f\u503c\uff0c\u4e26\u5c07\u5176\u547d\u540d\u70ba<code>MinimumSalary<\/code>\u3002<\/p>\n<h2 id=\"%e4%bd%bf%e7%94%a8%e6%a2%9d%e4%bb%b6%e6%9f%a5%e8%a9%a2%e6%9c%80%e5%b0%8f%e5%80%bc-OXvLtKkHNz\">\u4f7f\u7528\u689d\u4ef6\u67e5\u8a62\u6700\u5c0f\u503c<\/h2>\n<p>\u6709\u6642\u5019\uff0c\u6211\u5011\u53ef\u80fd\u53ea\u60f3\u67e5\u8a62\u7b26\u5408\u7279\u5b9a\u689d\u4ef6\u7684\u6578\u64da\u7684\u6700\u5c0f\u503c\u3002\u4f8b\u5982\uff0c\u5982\u679c\u6211\u5011\u53ea\u60f3\u67e5\u8a62\u90e8\u9580\u70ba\u201c\u92b7\u552e\u201d\u7684\u54e1\u5de5\u7684\u6700\u4f4e\u85aa\u6c34\uff0c\u53ef\u4ee5\u9019\u6a23\u5beb\uff1a<\/p>\n<pre><code>SELECT MIN(salary) AS MinimumSalary FROM employees WHERE department = 'Sales';<\/code><\/pre>\n<p>\u9019\u6a23\uff0c\u6211\u5011\u5c31\u80fd\u7372\u5f97\u5728\u201c\u92b7\u552e\u201d\u90e8\u9580\u4e2d\u85aa\u6c34\u7684\u6700\u5c0f\u503c\u3002<\/p>\n<h2 id=\"min%e5%87%bd%e6%95%b8%e7%9a%84%e6%b3%a8%e6%84%8f%e4%ba%8b%e9%a0%85-OXvLtKkHNz\">MIN()\u51fd\u6578\u7684\u6ce8\u610f\u4e8b\u9805<\/h2>\n<p>\u5728\u4f7f\u7528MIN()\u51fd\u6578\u6642\uff0c\u6709\u5e7e\u9ede\u9700\u8981\u6ce8\u610f\uff1a<\/p>\n<ul>\n<li><strong>NULL\u503c\uff1a<\/strong>MIN()\u51fd\u6578\u6703\u5ffd\u7565NULL\u503c\u3002\u5982\u679c\u5217\u4e2d\u6709NULL\u503c\uff0c\u9019\u4e9b\u503c\u4e0d\u6703\u5f71\u97ff\u6700\u5c0f\u503c\u7684\u8a08\u7b97\u3002<\/li>\n<li><strong>\u6578\u64da\u985e\u578b\uff1a<\/strong>MIN()\u51fd\u6578\u53ef\u4ee5\u7528\u65bc\u6578\u5b57\u3001\u65e5\u671f\u548c\u5b57\u7b26\u4e32\u985e\u578b\u7684\u5217\u3002\u5c0d\u65bc\u5b57\u7b26\u4e32\uff0c\u6700\u5c0f\u503c\u662f\u57fa\u65bc\u5b57\u6bcd\u9806\u5e8f\u7684\u3002<\/li>\n<li><strong>\u6027\u80fd\u8003\u91cf\uff1a<\/strong>\u5728\u5927\u578b\u6578\u64da\u96c6\u4e0a\u4f7f\u7528MIN()\u51fd\u6578\u6642\uff0c\u53ef\u80fd\u6703\u5f71\u97ff\u67e5\u8a62\u6027\u80fd\u3002\u9069\u7576\u7684\u7d22\u5f15\u53ef\u4ee5\u63d0\u9ad8\u67e5\u8a62\u6548\u7387\u3002<\/li>\n<\/ul>\n<h2 id=\"%e7%b5%90%e8%ab%96-OXvLtKkHNz\">\u7d50\u8ad6<\/h2>\n<p>MIN()\u51fd\u6578\u662f\u4e00\u500b\u5f37\u5927\u7684\u5de5\u5177\uff0c\u53ef\u4ee5\u5e6b\u52a9\u7528\u6236\u5feb\u901f\u7372\u53d6\u6578\u64da\u96c6\u4e2d\u7684\u6700\u5c0f\u503c\u3002\u7121\u8ad6\u662f\u5728\u85aa\u6c34\u67e5\u8a62\u3001\u65e5\u671f\u7bc4\u570d\u5167\u7684\u6700\u5c0f\u503c\uff0c\u9084\u662f\u5176\u4ed6\u985e\u578b\u7684\u6578\u64da\uff0c\u9019\u500b\u51fd\u6578\u90fd\u80fd\u63d0\u4f9b\u6709\u6548\u7684\u89e3\u6c7a\u65b9\u6848\u3002\u900f\u904e\u6b63\u78ba\u7684\u4f7f\u7528\uff0cMIN()\u51fd\u6578\u80fd\u5920\u5728\u6578\u64da\u5206\u6790\u4e2d\u767c\u63ee\u91cd\u8981\u4f5c\u7528\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\u7684<a href=\"https:\/\/server.hk\">VPS<\/a> \u670d\u52d9\uff0c\u70ba\u60a8\u7684\u9805\u76ee\u63d0\u4f9b\u7a69\u5b9a\u7684\u652f\u6301\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u4e86\u89e3MySQL\u4e2d\u7684MIN()\u51fd\u6570\uff0c\u8f7b\u677e\u83b7\u53d6\u6570\u636e\u96c6\u4e2d\u6700\u5c0f\u503c\uff0c\u4f18\u5316\u67e5\u8be2\u6548\u7387\uff0c\u63d0\u5347\u6570\u636e\u5206\u6790\u80fd\u529b\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-79192","post","type-post","status-publish","format-standard","hentry","category-database"],"_links":{"self":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/79192","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=79192"}],"version-history":[{"count":1,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/79192\/revisions"}],"predecessor-version":[{"id":79193,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/79192\/revisions\/79193"}],"wp:attachment":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/media?parent=79192"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/categories?post=79192"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/tags?post=79192"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}