[SOLVED] asp.net SelectCommand SQL JOIN problem

asp.net SelectCommand SQL JOIN problem

I'm a database noob so please bear with me. I'm trying to join three tables together in the SelectCommand attribute of a SqlDataSource. Here's my select command at the moment:

SelectCommand="SELECT DISTINCT a1.[CreateDate], a2.[UserName], c1.[name], c1.[organisation], c1.[address], a1.[IsApproved], a1.[UserId] FROM [aspnet_Membership], [aspnet_Users] a2, [clients] c1 INNER JOIN [aspnet_Membership] a1 ON c1.userid = a1.UserId INNER JOIN [clients] c2 ON c2.userid = a2.UserId AND a1.IsApproved = 'False'"

It's kinda mucky because I've been playing with it. I'm trying to display the registered date from aspnet_Membership (CreateDate), username from aspnet_Users (UserName) and other details from my custom clients table. But my joins aren't working. I managed to get aspnet_Membership to join fine with clients to display CreateDate, but I can't join aspnet_Users to show the username. I keep getting errors saying "aspnet_Users.UserId could not be bound".

Any ideas? I'm pretty sure the problem is in the joining, but not matter how many tweaks I make to the command I can't get any results.

Any help would be much appreciated :)

Solution

Why are you using clients twice? (Maybe explain what you're trying to achieve)

Try this:

SELECT DISTINCT 
    am.[CreateDate], ru.[UserName], cl.[name], cl.[organisation], 
    cl.[address], am.[IsApproved], am.[UserId] 
FROM 
    [aspnet_Membership] am
    INNER JOIN clients cl
        ON am.userid = cl.userid
    INNER JOIN [RolesAndAllUsers] ru
        ON cl.userid = ri.userid
WHERE
    cl.IsApproved = 'False'