Linking ALL Users to Login after restoring a SQL Server 2005 database

If:

EXEC sp_change_users_login 'Auto_Fix' , 'TheUserName';

Doest't work, try this:

EXEC sp_change_users_login 'Auto_Fix', 'Username', NULL, 'p@ssword123'

I found it here: http://dbadiaries.com/using-sp_change_users_login-to-fix-sql-server-orphaned-users

Yes, you can do that by executing:

EXEC sp_change_users_login 'Auto_Fix' , 'TheUserName';

However if your question was can I fix all users automatically then this won't do that.

I came up with the following. It works great because it shows you:

1. All the current orphaned users.
2. Which ones were fixed.
3. Which ones couldn't be fixed.

Other solutions require you to know the orphaned user name before hand in order to fix.

The following code could run in a sproc that is called after restoring a database to another server.

Script:

EXEC sp_change_users_login 'report'--See all orphaned users in the database.
DECLARE @OrphanedUsers TABLE
(
  IndexKey Int IDENTITY(1,1) PRIMARY KEY,
  UserName SysName,--nVarChar(128)
  UserSID  VarBinary(85)
)
INSERT INTO @OrphanedUsers
    EXEC sp_change_users_login 'report'

DECLARE @CRLF as nVarChar
    SET @CRLF = CHAR(10) + '&' + CHAR(13)--NOTE: Carriage-Return/Line-Feed will only appear in PRINT statements, not SELECT statements.
DECLARE @Sql as nVarChar(MAX)
    SET @Sql = N''
DECLARE @IndexKey as Int
    SET @IndexKey = 1
DECLARE @MaxIndexKey as Int
    SET @MaxIndexKey = (SELECT COUNT(*) FROM @OrphanedUsers)
DECLARE @Count as Int
    SET @Count = 0
DECLARE @UsersFixed as nVarChar(MAX)
    SET @UsersFixed = N''
DECLARE @UserName as SysName--This is an orphaned Database user.

WHILE (@IndexKey <= @MaxIndexKey)
  BEGIN
    SET @UserName = (SELECT UserName FROM @OrphanedUsers WHERE IndexKey = @IndexKey)
    IF 1 = (SELECT COUNT(*) FROM sys.server_principals WHERE Name = @UserName)--Look for a match in the Server Logins.
      BEGIN
        SET @Sql = @Sql + 'EXEC sp_change_users_login ''update_one'', [' + @UserName + '], [' + @UserName + ']' + @CRLF
        SET @UsersFixed = @UsersFixed + @UserName + ', '
        SET @Count = @Count + 1
      END
    SET @IndexKey = @IndexKey + 1
  END

PRINT @Sql
EXEC sp_executesql @Sql
PRINT   'Total fixed: ' + CAST(@Count as VarChar) + '.  Users Fixed: ' + @UsersFixed
SELECT ('Total fixed: ' + CAST(@Count as VarChar) + '.  Users Fixed: ' + @UsersFixed)[Fixed]
EXEC sp_change_users_login 'report'--See all orphaned users still in the database.

Result:

*Note: The 4 that were not fixed (in my example screenshot above) did not have a corresponding User in the destination Server that the database was restored to.