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VB.net SQL Deleting duplicates

Posted on 2014-12-26
Medium Priority
Last Modified: 2014-12-26

In my VB.net project I pull the data shown below into  a DataGridView using the following SQL statement.
It shows all records with the same Article and  Site combination. How do I delete all duplicates leaving one record
containing the combination

select rtrim([Article])+rtrim([Site]),count(*) As Count_Duplicates from [MARC] group by rtrim([Article])+rtrim([Site]) having count(*)>1

Question by:Murray Brown
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Accepted Solution

ste5an earned 2000 total points
ID: 40518393
What SQL Server version?

E.g. using ROW_NUMBER()

WITH Ordered AS 
		SELECT 	Article,
			ROW_NUMBER() OVER ( PARTITION BY Article, Site ORDER BY anotherColumn ) AS RN
	WHERE	RN > 1;

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Caveat: make a backup first.

Author Comment

by:Murray Brown
ID: 40518452
Hi Ste5an. That looks good, I am using SQL 2008

Author Comment

by:Murray Brown
ID: 40518475

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