2

基本上我需要结合这两个查询的结果，其中 PSROLEUSER 在两个表中都相等。我该怎么做？

select PSROLEUSER from sysadm.PSROLEUSER where ROLENAME = 'NCC_Manag';
select PSROLEUSER from sysadm.PSROLEUSER where ROLENAME = 'HRM-Content Amin';
4

7 回答 7

2

下面的查询假定ROLENAME每个PSROLEUSER.

SELECT  PSROLEUSER 
FROM    sysadm.PSROLEUSER 
WHERE   ROLENAME IN ('NCC_Manag', 'HRM-Content Amin')
GROUP   BY PSROLEUSER
HAVING  COUNT(*) = 2
于 2013-07-27T16:06:02.717 回答
2

这是一种将所有逻辑都放在having子句中的方法：

select PSROLEUSER
from sysadm.PSROLEUSER 
group by PSROLEUSER
having sum(case when ROLENAME = 'NCC_Manag' then 1 else 0 end) > 0 and
       sum(case when ROLENAME = 'HRM-Content Amin' then 1 else 0 end) > 0;

我喜欢这种方法，因为它非常通用。例如，如果你想要所有'NCC_Manag'不是的， 'HRM_Content Amin'你会这样做：

select PSROLEUSER
from sysadm.PSROLEUSER 
group by PSROLEUSER
having sum(case when ROLENAME = 'NCC_Manag' then 1 else 0 end) > 0 and
       sum(case when ROLENAME = 'HRM-Content Amin' then 1 else 0 end) = 0;
于 2013-07-27T16:12:50.947 回答
1

另一种方式：

select X.PSROLEUSER from
(select PSROLEUSER from sysadm.PSROLEUSER where ROLENAME = 'NCC_Manag') X inner join 
(select PSROLEUSER from sysadm.PSROLEUSER where ROLENAME = 'HRM-Content Amin') Y
on X.PSROLEUSER = Y.PSROLEUSER
于 2013-07-27T16:10:36.343 回答
1 
select PSROLEUSER from sysadm.PSROLEUSER where ROLENAME in('NCC_Manag','HRM-Content Amin')

试试这个代码

于 2013-07-27T16:16:51.017 回答
0 
select PSROLEUSER from sysadm.PSROLEUSER where ROLENAME = 'NCC_Manag'
UNION
select PSROLEUSER from sysadm.PSROLEUSER where ROLENAME = 'HRM-Content Amin'

假设它们返回相同的模式，只需合并它们。

于 2013-07-27T16:10:27.633 回答
0

您也可以使用 EXISTS 运算符的另一个版本。

SELECT t1.PSROLEUSER
FROM sysadm.PSROLEUSER t1
WHERE t1.ROLENAME = 'NCC_Manag'
  AND EXISTS (
              SELECT 1
              FROM sysadm.PSROLEUSER t2
              WHERE t2.ROLENAME = 'HRM-Content Amin'
                AND t1.PSROLEUSER = t2.PSROLEUSER
              )

见演示SQLFiddle

于 2013-07-28T06:16:42.083 回答
0 
select distinct psroleuser from psroleuser where rolename = 'NCC_Manag'
and psroleuser in 
(select psroleuser from psroleuser where rolename = 'HRM-Content Amin')
于 2014-10-10T09:15:50.777 回答