{"id":176,"date":"2018-10-13T18:04:08","date_gmt":"2018-10-13T10:04:08","guid":{"rendered":"https:\/\/wp.dj47.top\/?p=176"},"modified":"2021-10-20T16:19:02","modified_gmt":"2021-10-20T08:19:02","slug":"%e5%a4%a7%e6%95%b0%e6%8d%ae%e4%b8%8b%e8%a7%a3%e5%86%b3join%e7%9a%84%e6%9f%a5%e8%af%a2%e9%80%9f%e5%ba%a6%e9%97%ae%e9%a2%98","status":"publish","type":"post","link":"https:\/\/www.djlog.cn\/?p=176","title":{"rendered":"\u5927\u6570\u636e\u4e0b\u89e3\u51b3join\u7684\u67e5\u8be2\u901f\u5ea6\u95ee\u9898"},"content":{"rendered":"

\u5de6\u886820W\u6761\u6570\u636e\uff0c\u56e0\u4e3a\u53d7mysql\u7684limit\u626b\u63cf\u5f71\u54cd\uff0c\u4f20\u7edf\u7684\u5206\u9875\u67e5\u8be2\u8d8a\u5230\u540e\u9762\u8d8a\u6162\uff0c\u6240\u4ee5\u4f18\u5316\u5c31\u5f97\u76f4\u63a5\u53d6\u5f97\u6761\u6570\u8303\u56f4\uff0c\u8ba9mysql\u76f4\u63a5\u8df3\u8fc7\u626b\u63cf\u524d\u9762\u7684\u6570\u636e\u5373\u53ef\uff0c\u4e0b\u9762\u4e3a\u5b9e\u73b0\u4ee3\u7801\uff0c\u548c\u622a\u56fe\u3002\u3002\u3002<\/span>

\u5f53\u7136\uff0c\u4e0d\u662f\u8bf4\u53ea\u9002\u5408join\uff0c\u4efb\u4f55\u8d70limit\u7684\u67e5\u8be2\u8bed\u53e5\u90fd\u53ef\u4ee5\u54c8\uff01\u9001\u7ed9\u7eaf\u6d01\u7684\u5c0f\u767d\u670b\u53cb\u3002\u5982\u679c\u5927\u795e\u4eec\u6709\u66f4\u597d\u7684\uff0c\u6b22\u8fce\u5206\u4eab\uff01\u611f\u8c22\u5927\u795e\u4eec\u3002<\/span><\/p>\n

$dircontent = M('Dir_content');\r\n$count = $dircontent->count();\r\n$page = new \\Think\\Page($count,15);\r\n$id = $dircontent->limit(($count-1-$page->firstRow).',1')->field('id')->select();\r\n$where['id'] = array('ELT',$id[0]['id']);\r\n$list = $dircontent->field('a.id,a.name,a.domain,a.uid,a.is_auth,a.time,a.is_difang,a.difang_class,b.member_name')\r\n->alias('a')\r\n->join('left join __MEMBER__ b ON a.userid = b.member_id')\r\n->Force('pri')\r\n->where($where)\r\n->limit($page->listRows)\r\n->order('id DESC')\r\n->select();<\/code><\/pre>\n

\n<\/span>\u8fd9\u4e2a\u662f\u7b2c\u4e00\u9875<\/span>
<\/div><\/a>
\u8fd9\u4e2a\u662f\u6700\u540e\u4e00\u9875<\/span>
<\/div><\/a><\/p>\n
\u8f6c\u8f7d\u81ea\uff1a<\/span>http:\/\/www.thinkphp.cn\/topic\/28099.html<\/a><\/p>\n","protected":false},"excerpt":{"rendered":"
\u5de6\u886820W\u6761\u6570\u636e\uff0c\u56e0\u4e3a\u53d7mysql\u7684limit\u626b\u63cf\u5f71\u54cd\uff0c\u4f20\u7edf\u7684\u5206\u9875\u67e5\u8be2\u8d8a\u5230\u540e\u9762\u8d8a\u6162\uff0c\u6240\u4ee5\u4f18\u5316\u5c31\u5f97\u76f4\u63a5\u53d6\u5f97\u6761\u6570\u8303 […]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":[],"categories":[16],"tags":[29],"class_list":["post-176","post","type-post","status-publish","format-standard","hentry","category-thinkphp","tag-thinkphp"],"_links":{"self":[{"href":"https:\/\/www.djlog.cn\/index.php?rest_route=\/wp\/v2\/posts\/176","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.djlog.cn\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.djlog.cn\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.djlog.cn\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.djlog.cn\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=176"}],"version-history":[{"count":0,"href":"https:\/\/www.djlog.cn\/index.php?rest_route=\/wp\/v2\/posts\/176\/revisions"}],"wp:attachment":[{"href":"https:\/\/www.djlog.cn\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=176"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.djlog.cn\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=176"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.djlog.cn\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=176"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}