Rapthor,
Try ...
SELECT u.name
FROM user u
JOIN user_role ur ON u.id=ur.user_id AND (u.id=1 OR u.id=2)
JOIN user_group ug ON u.id=ug.user_id AND (u.id=1 OR u.id=2)
HAVING COUNT( DISTINCT ur.role_id ) = 2
AND COUNT( DISTINCT ug.group_id ) = 2;
BTW you can't name a table 'group'; it's a reserved word.
PB
-----
Rapthor wrote:
> Hi SQLers,
>
> I am searching for an SQL command to combine several many-to-many queries.
> At the end I only want to get results suitable for all restrictions.
>
> Better show you my tables:
>
> USER
> id name
> 1 frank
>
> ROLE
> id name
> 1 admin
> 2 general
>
> GROUP
> id name
> 1 groupA
> 2 groupB
>
> USER_ROLE
> user_id role_id
> 1 1
> 1 2
>
> USER_GROUP
> user_id group_id
> 1 1
> 1 2
>
> The query I am searching for should only process USERs that have ROLE 1 and
> 2 AND furthermore have GROUPs 1 and 2 at the same time. How to chain these
> restrictions into ONE SQL-query?
>
> What would the query look like?
>
> The following query would only get me all USERs having ROLE 1:
>
> SELECT * FROM USER WHERE id IN (SELECT DISTINCT USER_ROLE.user_id FROM
> USER_ROLE WHERE USER_ROLE.role_id = 1);
>
> Thanks in advance!
> I really need help with this! Thanks again.
>
