Delete Duplicates in SQL - SQL Training Online - Quick Tips Ep43

Published: 09 November 2012
on channel: Joey Blue
52,969
681

Delete Duplicates in SQL Server - SQL Training Online

In this video, I show you two different techniques to remove duplicate records in a SQL Server table.

I don't use the SQL distinct operators, but I actually group the data and apply unique row identifiers to make the SQL delete easier.

Both of the SQL delete statements involve SQL Server CTE statements and use the Row_Number operator to assist in the process. With the operator, you can identify the duplicate rows

You can get the sample script to run the test yourself at http://www.sqltrainingonline.com/how-....

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