हर पंक्ति का चयन कैसे करें जहां कॉलम मान अलग नहीं है

यह EXISTS . से काफ़ी तेज़ है रास्ता:

SELECT [EmailAddress], [CustomerName] FROM [Customers] WHERE [EmailAddress] IN
  (SELECT [EmailAddress] FROM [Customers] GROUP BY [EmailAddress] HAVING COUNT(*) > 1)