mysql-复杂sql

将查询结果作为临时表：

select * from (      select a.id as id,b.name as name from t_a a, t_b b where a.id=b.id  ) as tmp  

将查询结果插入到目表表：

• 表存在
  
  • insert into 目表表 select * from 表 where 条件
• 表不存在
  
  • select * into 目标表 from 表 where 条件

应用：N个表关键查询的结果存到t_new

insert into t_new select * from (      select a.id as id,b.name as name from t_a a, t_b b where a.id=b.id  ) as tmp