delete dublicate rows sql
WITH CTE AS( SELECT [col1], [col2], [col3], [col4], [col5], [col6], [col7], RN = ROW_NUMBER()OVER(PARTITION BY col1 ORDER BY col1) FROM dbo.Table1 ) DELETE FROM CTE WHERE RN > 1
delete dublicate rows sql
WITH CTE AS( SELECT [col1], [col2], [col3], [col4], [col5], [col6], [col7], RN = ROW_NUMBER()OVER(PARTITION BY col1 ORDER BY col1) FROM dbo.Table1 ) DELETE FROM CTE WHERE RN > 1
sql server delete records that have a single duplicate column
WITH cte AS ( SELECT contact_id, first_name, last_name, email, ROW_NUMBER() OVER ( PARTITION BY first_name, last_name, email ORDER BY first_name, last_name, email ) row_num FROM sales.contacts ) DELETE FROM cte WHERE row_num > 1;
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