mysql UNION

一样的联表查询，不一样的条件筛选，最后把数据整合到一起 UNION

select pro_parent as product_id from tb1
where pro_type = 'variation' group by pro_parent

UNION

select product_id as id from tb1 where pro_type = 'simple'

---

end 记录下先

---

• 补充下 mysql union

- select * from A union all select * from B  //A B数据结构一定要一样

union 之后再做处理的话需要

(SELECT uid,umobile,realname FROM users WHERE vip IN (8, 9))       
UNION
(SELECT uid,umobile,realname FROM users WHERE vip NOT IN (8, 9) AND amount > 0   )
 ORDER BY uid desc limit 10