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| Required Peoplesoft HRMS Functional Training | PeopleSoft Functional | 05/07/2013 - 10:29pm |
SELECT col1, col2,col3,count(col3)--put the last column of duplicate combination in Count()
FROM table1
GROUP BY col1,col2,col3
HAVING COUNT(col3) >1
if database is oracle try this.
self join
select A.key1, A.key2... from TABLE A, TABLE B where A.key1= B.key1 and A.key2 = B.key2 ... and A.ROWID <> B.ROWID