CREATE PROCEDURE dbo.[Forum_Permissions_GetCollection]
    @ForumID INT,
    @PermissionID INT
AS
    SELECT  *
    FROM    dbo.Forum_vw_ForumPermissions
    WHERE   ( @ForumID = -1
              OR ForumID = @ForumID
            )
            AND ( PermissionID = @PermissionID
                  OR @PermissionID = -1
                )

GO