摘要： 我同事写了一条Sql语句，当时没看明白，下面晒出来：SELECT SUM(new_cart) as new_cart,SUM(new_collect) as new_collect, SUM(total_cart) as total_cart, SUM(total_collect) as total_collect, SUM(ipv) ipv, SUM(iuv) iuv FROM ( SELECT SUM(new_cart) as new_cart,SUM(new_collect) as new_collect,0 as total_cart,0 as total_collect, S... 阅读全文