2021年7月9日
test
摘要： select distinct b.item_category as Category, ifnull(sum(case when dayofweek(a.order_date) = 2 then a.quantity end),0) Monday, ifnull(sum(case when day 阅读全文
posted @ 2021-07-09 16:33 hangover 阅读(35) 评论(0) 推荐(0)