Sollicitatievraag bij Cognizant

How to delete duplicate rows in sql

Antwoord op sollicitatievraag

Anoniem

10 okt 2018

First try to find the count of duplicate rows and then delete it except one record. with Emp as ( select *, row_number()over(partition by ID order by ID) as rowcount from Employee ) Delete from Emp where rowcount>1