最新的條目

Question

我加入兩個表

select * from prod 
inner join stock_inventory_new on prod.prod_cd=stock_inventory_new.prod_cd 

而且我想帶回只有最新的條目PROD_CD，做我需要插入一個MAX日期？

Answer 1

這應該是按日期降序排列並限制行數。

MySQL的： -

select * from prod 
inner join stock_inventory_new on prod.prod_cd=stock_inventory_new.prod_cd 
order by [date] desc Limit 20 

MS SQL： -

select TOP 20 from prod inner join stock_inventory_new on 
prod.prod_cd=stock_inventory_new.prod_cd order by [date] desc