sql - 与联合所有SQL查询获取错误 'Column specified multiple times'

Question

这是我的查询:

select * from (
    select Name, Address
    from table1
    UNION ALL
    select Name, Address
    from table2
) D

执行此查询时出现错误:

The column 'Name' was specified multiple times for 'D'.

Answer 1

select * from (
      select t1.Name as t1_Name, t1_Address as t1_Address
          from table t1
             UNION ALL
      select t2.Name as t2_Name, t2_Address as t2_Address
          from table t2
) D

尝试这个