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How to get datetime in sql query?

If you run following script in this SQL Command. Itwill give you same results and no performance difference. It will return the current server time.

How to delete duplicate rows in sql?

Here I am using CTE(Common Table Expression) for Delete duplicate rows. PARTITION BY : It devides the query result into partitions Row_NUMBER : gives unique name for all duplicate rows ie., if one row record repeated for 3 times . it gives the index such as 1,2 and 3 Using this query we can delete all duplicate rows in a table