{"id":315,"date":"2017-08-07T14:37:11","date_gmt":"2017-08-07T06:37:11","guid":{"rendered":"http:\/\/www.cxybj.com\/?p=315"},"modified":"2017-08-07T14:39:25","modified_gmt":"2017-08-07T06:39:25","slug":"mysql-having%e7%9a%84%e7%94%a8%e6%b3%95","status":"publish","type":"post","link":"https:\/\/www.cxybj.com\/?p=315","title":{"rendered":"thinkphp5 Mysql\u67e5\u8be2having\u65b9\u6cd5\u7684\u7528\u6cd5"},"content":{"rendered":"<p>\u539f\u751fmysql\u4e2dhaving\u7528\u6cd5\u7684\u5b9a\u4e49\uff1ahaving\u5b57\u53e5\u53ef\u4ee5\u8ba9\u6211\u4eec\u7b5b\u9009\u6210\u7ec4\u540e\u7684\u5404\u79cd\u6570\u636e\uff0cwhere\u5b57\u53e5\u5728\u805a\u5408\u524d\u5148\u7b5b\u9009\u8bb0\u5f55\uff0c\u4e5f\u5c31\u662f\u8bf4\u4f5c\u7528\u5728group by\u548chaving\u5b57\u53e5\u524d\u3002\u800c having\u5b50\u53e5\u5728\u805a\u5408\u540e\u5bf9\u7ec4\u8bb0\u5f55\u8fdb\u884c\u7b5b\u9009\u3002<\/p>\n<p>thinkphp5\u4e2d\u7528\u6cd5\u7684\u5b9a\u4e49\uff1a<\/p>\n<p>HAVING\u65b9\u6cd5\u4e5f\u662f\u8fde\u8d2f\u64cd\u4f5c\u4e4b\u4e00\uff0c\u7528\u4e8e\u914d\u5408group\u65b9\u6cd5\u5b8c\u6210\u4ece\u5206\u7ec4\u7684\u7ed3\u679c\u4e2d\u7b5b\u9009\uff08\u901a\u5e38\u662f\u805a\u5408\u6761\u4ef6\uff09\u6570\u636e\u3002<\/p>\n<p>having\u65b9\u6cd5\u53ea\u6709\u4e00\u4e2a\u53c2\u6570\uff0c\u5e76\u4e14\u53ea\u80fd\u4f7f\u7528\u5b57\u7b26\u4e32\uff0c\u4f8b\u5982\uff1a<\/p>\n<pre><code>Db::table<span class=\"hljs-function\"><span class=\"hljs-params\">(<span class=\"hljs-string\">'think_user'<\/span>)<\/span>\r\n    -&gt;<\/span>field<span class=\"hljs-function\"><span class=\"hljs-params\">(<span class=\"hljs-string\">'username,max(score)'<\/span>)<\/span>\r\n    -&gt;<\/span>group<span class=\"hljs-function\"><span class=\"hljs-params\">(<span class=\"hljs-string\">'user_id'<\/span>)<\/span>\r\n    -&gt;<\/span>having<span class=\"hljs-function\"><span class=\"hljs-params\">(<span class=\"hljs-string\">'count(test_time)&gt;3'<\/span>)<\/span>\r\n    -&gt;<\/span>select(); \r\n<\/code><\/pre>\n<p>\u751f\u6210\u7684SQL\u8bed\u53e5\u662f\uff1a<\/p>\n<pre><code><span class=\"hljs-keyword\">SELECT<\/span> username,<span class=\"hljs-built_in\">max<\/span>(score) <span class=\"hljs-keyword\">FROM<\/span> think_score <span class=\"hljs-keyword\">GROUP<\/span> <span class=\"hljs-keyword\">BY<\/span> user_id <span class=\"hljs-keyword\">HAVING<\/span> <span class=\"hljs-built_in\">count<\/span>(test_time)&gt;<span class=\"hljs-number\">3<\/span><\/code><\/pre>\n","protected":false},"excerpt":{"rendered":"<p>\u539f\u751fmysql\u4e2dhaving\u7528\u6cd5\u7684\u5b9a\u4e49\uff1ahaving\u5b57\u53e5\u53ef\u4ee5 &hellip; <a href=\"https:\/\/www.cxybj.com\/?p=315\" class=\"more-link\">Read More<\/a><\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":[],"categories":[133,3],"tags":[],"_links":{"self":[{"href":"https:\/\/www.cxybj.com\/index.php?rest_route=\/wp\/v2\/posts\/315"}],"collection":[{"href":"https:\/\/www.cxybj.com\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.cxybj.com\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.cxybj.com\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.cxybj.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=315"}],"version-history":[{"count":3,"href":"https:\/\/www.cxybj.com\/index.php?rest_route=\/wp\/v2\/posts\/315\/revisions"}],"predecessor-version":[{"id":318,"href":"https:\/\/www.cxybj.com\/index.php?rest_route=\/wp\/v2\/posts\/315\/revisions\/318"}],"wp:attachment":[{"href":"https:\/\/www.cxybj.com\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=315"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.cxybj.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=315"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.cxybj.com\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=315"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}