Delete Duplicates in SQL - SQL Training Online - Quick Tips Ep43
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12 سال پیش
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Delete Duplicates in SQL Server
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 www.sqltrainingonline.com/how-to-remove-duplicate-….
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READ THE ORIGINAL ARTICLE WITH SQL SCRIPTS HERE
www.sqltrainingonline.com/how-to-remove-duplicate-…
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12 سال پیش
در تاریخ 1391/08/19 منتشر شده
است.
50,796
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