左连接

来源:互联网 发布:淘宝抢月饼员工 编辑:程序博客网 时间:2024/05/11 08:55
"select e.en_id,e.en_name,ifnull(u.qq,0) as qq from wx_enterprise e left join " +
" (select count(*) as qq,enterprise_id from wx_user " + whereSql.toString() + " group by enterprise_id) u " + 
" on e.en_id = u.enterprise_id "  + whereSql1.toString()
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