thinkPHP简单实现多个子查询语句的方法
2018-09-21 16:39
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:
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。
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