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Editorial Team
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Asked: 2026-05-30T02:03:22+00:00

I got some problems with this query i need all my selectors but i

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I got some problems with this query i need all my selectors but i only want to group aspnet_Users.Userid how should i do this?

Here is my query:

SELECT 
    aspnet_Users.UserId, aspnet_Users.UserName, 
    Friends.Verified, Friends.FriendUserId 
FROM 
    [aspnet_Users] 
INNER JOIN 
    Friends ON Friends.UserId = aspnet_Users.UserId OR Friends.FriendUserId = aspnet_Users.UserId
WHERE
    aspnet_Users.UserId IN 
       (SELECT UserId as Id FROM Friends 
        WHERE FriendUserId='3d1224ac-f2ad-45d4-aa84-a98e748e3e57'
        UNION 
        SELECT FriendUserId as Id FROM Friends 
        WHERE UserId='3d1224ac-f2ad-45d4-aa84-a98e748e3e57')
GROUP BY 
    aspnet_Users.UserId, aspnet_Users.UserName, 
    Friends.Verified, Friends.FriendUserId

Stored Procedure structure:

Tables [aspnet_Users] and [Friends]

Columns [aspnet_Users.UserId], [aspnet_Users.UserName], [Friends.Verified], [Friends.FriendUserId]

That is the data that i need to get using the procedure, but the problem is that each user can have multiply friends which means if so there will be multiply Friends values. This is the reason why i can’t group using those values cause it gives me dublicates with the wrong value.

Expected Output:

aspnet_Users.UserId (This is the user id of the friend, note that it doesn’t mean that its the FriendUserId)

aspnet_Users.UserName (This is the UserName of the friend based on the UserId explained above)

Friends.Verified (True or False. The Verified value in the Friends table on the friendship)

Friends.FriendUserId (The FriendUserId value from the table Friends)

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1 Answer

  1. Editorial Team

    If your relationship is not fully reciprocal in the table Friends, you can use this query.

    Otherwise either part of the UNION would work on its own

    SELECT U.UserId, U.UserName, F.Verified, F.FriendUserId
FROM Friends F
JOIN aspnet_Users U ON U.UserId=F.UserId
WHERE F.FriendUserId='3d1224ac-f2ad-45d4-aa84-a98e748e3e57'
UNION 
SELECT U.UserId, U.UserName, F.Verified, F.FriendUserId
FROM Friends F
JOIN aspnet_Users U ON U.UserId=F.FriendUserId
WHERE F.UserId='3d1224ac-f2ad-45d4-aa84-a98e748e3e57'
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