query for getting roleid from db

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C#

"DELETE FROM Roles WHERE RoleId =@RoleId AND UserId = (SELECT u.UserId FROM Users u WHERE u.UserName = @UserName"

i want to get role id from database

for u.username i have a textbox in my project and use where clause for that.. what i can do to get roleid for particular user form database...

Posted 11-Sep-11 11:08am

codegeekalpha

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Ger Hayden · Answer 1 · 2011-09-11T17:49:00

I'd be thinking something simple like

Select RoleID from Roles where UserID = @Username

Note - I haven't validated the user against the Users table - I am asuming that was done when the role was added. But if we wanted to then I would go with this

Select RoleID from Roles R, Users U 
where R.UserID = U.UserID
and   UserID = @Username

Pradeep Shukla · Answer 2 · 2011-09-11T13:59:00

This would fetch you the users and roles:

SQL

select rp.name as database_role, mp.name as database_user
from sys.database_role_members drm
join sys.database_principals rp on (drm.role_principal_id = rp.principal_id)
join sys.database_principals mp on (drm.member_principal_id = mp.principal_id)

query for getting roleid from db

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