如何在laravel 4.2中编写这个sql命令

Question

我正在尝试使用Laravel 4.2运行此查询，但我不确定如何实现它。任何人都可以给我指向正确的方向吗？谢谢！

select * from (select * from `t_quotation_revises` ORDER BY id DESC) AS x GROUP BY `t_quotation_id`

Answer 1

select * from（select * from t_quotation_revises ORDER BY id DESC）AS x GROUP BY t_quotation_id

上面的查询将在laravel 4.2中编写，如：

$ reviseQuotationArr = DB :: table（DB :: raw（'（select * from t_quotation_revises ORDER BY id DESC）AS x'））                                      - ＆GT; GROUPBY（ 't_quotation_id'）                                      - ＆GT;得到（）;