1 从两个结构相同表中查询记录select * from table1select * from table2; table1和table2结构必须完全相同! 相关文章: 2022-12-23 2022-12-23 2021-09-04 2021-04-26 2022-12-23 2021-08-18 2022-02-27 2022-12-23