http://www.brilang.com Fri, 23 Jul 2010 01:16:22 +0000 http://wordpress.org/?v=2.9.2 en hourly 1 http://www.brilang.com/2008/07/29/find-duplicate-records-sql-query/ http://www.brilang.com/2008/07/29/find-duplicate-records-sql-query/#comments Tue, 29 Jul 2008 18:53:35 +0000 admin http://www.brianlang.ca/?p=194 1 ) ]]> Here’s a real simple query to detect duplicate records (based on a single field). This query works in both MySQL and Microsoft SQL.
SELECT FieldName, COUNT( FieldName ) AS Occurrences
FROM TableName
GROUP BY FieldName
HAVING ( COUNT( FieldName ) > 1 )

]]> http://www.brilang.com/2008/07/29/find-duplicate-records-sql-query/feed/ 0