thinkPHP简单实现多个子查询语句的方法

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 a
left join sh_opener_bonus b on a.id = b.opener_id
left join sh_incentive c on b.incentive_id = c.id
where 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;

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。