tmkutvpkwtsql語句博大精深
理解好sql語句，就能用好thinkphp等框架中的資料庫操作
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_opewww.cppcns.comner a
left join sh_opener_bonus b on a.id = b.opener_id
left join sh_incentive c on b.incentive_id = c.id
whewww.cppcns.comre a.agent_id = 3 and a.status = 1 and c.year = 2015 and c.month = 11
group by a.id,c.year,c.month) a
left join (select a.id as payment_id,a.opener_id,a.money as payment_money,a.trode_number from sh_opener_bonus_payment a
where a.year = 2015 and a.`month` = 11 and a.agent_id = 3) b
on 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);
// 獲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);www.cppcns.com
// 子查詢tmkutvpkwt2
$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框架對sql的封裝，最終還是要拼湊成sql語句。
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