thinkPHP簡單實現多個子查詢語句的方法

這篇文章主要介紹了thinkPHP簡單實現多個子查詢語句的方法,結合執行個體形式對比分析了thinkPHP中子查詢語句的具體實現技巧,需要的朋友可以參考下

本文執行個體講述了thinkPHP簡單實現多個子查詢語句的方法。分享給大家供大家參考，具體如下：

sql語句博大精深

理解好sql語句，就能用好thinkphp等架構中的資料庫操作

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;

這裡面有兩個子查詢語句，其實子查詢語句也是表，只不過是存在記憶體中罷了。

thinkphp實現：

$useYear = date('Y',strtotime('last month'));$this->assign('useYear',$useYear);$useMonth = date('m',strtotime('last month'));$this->assign('useMonth',$useMonth);// 擷取上一月人員的獎金金額// 子查詢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($whereSub1)->group('a.id,c.year,c.month')->field('a.id,a.name,sum(c.money) as bonus_money,c.year,c.month')->select(false);// 子查詢2$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);

其實thinkphp架構對sql的封裝，最終還是要拼湊成sql語句。