Archives of the TeradataForum
Message Posted: Fri, 10 Oct 2008 @ 16:16:40 GMT
Can anyone please advice the best way ( without impacting the system performance much ) to delete duplicate rows from a table > 1 TeraByte?
A ) FastExport all rows and then FastLoad /Multiload (with ignore Dupes).
B ) Multiload Delete - Not sure how the SQL would like since we cannot use RowID's.
C ) SELECT DISTINCT or SELECT .. WITH GROUP BY and then INSERT into a SET Table.
Any other suggested options? Ideas/Suggestions/Thoughts welcome and appreciate. Thanks in advance.
|Copyright 2016 - All Rights Reserved|
|Last Modified: 23 Jun 2019|