sql - 在单个记录上返回多行

Question

我需要检索这个结果:

ROW1.id | ROW2.id | ROW3.id | ROW4.id
   1    |    2    |    3    |    4

从这个结果开始 select * from Table:

id | value
1  | sample1
2  | sample2
3  | sample3
4  | sample4

有什么想法吗？

谢谢， 安德里亚

Answer 1

你可以这样做:

select 
 (select id from table X where X.something = 123) as row1Id,
 (select id from table X where X.something = 456) as row2Id,
 (select id from table X where X.something = 789) as row3Id