本文实例讲述了thinkPHP简单实现多个子查询语句的方法。分享给大家供大家参考,具体如下:
sql语句博大精深
理解好sql语句,就能用好thinkphp等框架中的数据库操作
原sql:SELECT a.*,b.* from (SELECT a.id as opener_id,a.name,sum(c.money) as bonus_money,c.year,c.month from sh_opener aLEFT JOIN sh_opener_bonus b on a.id = b.opener_idLEFT JOIN sh_incentive c on b.incentive_id = c.idwhere a.agent_id = 3 and a.status = 1 and c.year = 2015 and c.month = 11GROUP BY a.id,c.year,c.month) aLEFT JOIN (SELECT a.id as payment_id,a.opener_id,a.money as payment_money,a.trode_number from sh_opener_bonus_payment awhere a.year = 2015 and a.`month` = 11 and a.agent_id = 3) bon a.opener_id = b.opener_id;
这里面有两个子查询语句,其实子查询语句也是表,只不过是存在内存中罢了。
thinkphp实现:$useYear = date("Y",strtotime("last month"));$this->assign("useYear",$useYear);$useMonth = date("m",strtotime("last month"));$this->assign("useMonth",$useMonth);// 获取上一月人员的奖金金额// 子查询1$whereSub1["a.agent_id"] = $this->agent_id;$whereSub1["a.status"] = 1;$whereSub1["c.year"] = $useYear;$whereSub1["c.month"] = $useMonth;$subQuery1 = M()->table("sh_opener a")->join("sh_opener_bonus b on a.id = b.opener_id")->join("sh_incentive c on b.incentive_id = c.id")->where($whereSub1)->group("a.id,c.year,c.month")->field("a.id,a.name,sum(c.money) as bonus_money,c.year,c.month")->select(false);// 子查询2$whereSub2["a.agent_id"] = $this->agent_id;$whereSub2["a.year"] = $useYear;$whereSub2["a.month"] = $useMonth;$subQuery2 = M()->table("sh_opener_bonus_payment a")->where($whereSub2)->field("a.id as payment_id,a.opener_id,a.money as payment_money,a.trode_number")->select(false);$list = M()->table($subQuery1." a")->join($subQuery2." b on a.id = b.opener_id")->select();$this->assign("list",$list);
其实thinkphp框架对sql的封装,最终还是要拼凑成sql语句。
更多关于thinkPHP相关内容感兴趣的读者可查看本站专题:《ThinkPHP入门教程》、《thinkPHP模板操作技巧总结》、《ThinkPHP常用方法总结》、《codeigniter入门教程》、《CI(CodeIgniter)框架进阶教程》、《Zend FrameWork框架入门教程》、《smarty模板入门基础教程》及《PHP模板技术总结》。
希望本文所述对大家基于ThinkPHP框架的PHP程序设计有所帮助。