请问我想要在一个数据库里查询"Name相同,Code不相同"的数据,该如何写查询语句啊?
数据库大概是这样的:
ID Name Code
A2356 One 305
B2456 One 205
C2156 One 305用以下语句无法得到结果:
Select ID,Name,Code from test1 where Name=Name and Code<>Code我希望查询出:
ID Name Code
A2356 One 305
B2456 One 205谢谢各位...万分感激.....
数据库大概是这样的:
ID Name Code
A2356 One 305
B2456 One 205
C2156 One 305用以下语句无法得到结果:
Select ID,Name,Code from test1 where Name=Name and Code<>Code我希望查询出:
ID Name Code
A2356 One 305
B2456 One 205谢谢各位...万分感激.....
select first.id,first.name,first.code
from test1 as first, test1 as second
where first.name=second.name and first.code <>second.code