SQL Query to find duplicates not returning any results
- by TheDudeAbides
I know there are duplicate account numbers in this table, but this query returns no results. 
  SELECT [CARD NUMBER],[CUSTOMER NAME],[ACCT NBR 1],[ACCT NBR 2],
  
  COUNT([ACCT NBR 1]) AS NumOccurences
  
  FROM DebitCardData.dbo.['ATM Checking Accts - Active$']
  
  GROUP BY [CARD NUMBER],[CUSTOMER NAME],[ACCT NBR 1],[ACCT NBR 2]
  
  HAVING (COUNT([ACCT NBR 1])1)