Delete all but one duplicate record

Question

I have a table that is supposed to keep a trace of visitors to a given profile (user id to user id pair). It turns out my SQL query was a bit off and is producing multiple p

Answer 1

This will work:

With NewCTE
AS
(
Select *, Row_number() over(partition by ID order by ID)as RowNumber from 
table_name
)
Delete from NewCTE where RowNumber > 1