SQL Server 2008: delete duplicate rows

Question

I have duplicate rows in my table, how can I delete them based on a single column\'s value?

Eg

uniqueid, col2, col3 ...
1, john, simpson
2, sally, ro         


        

Answer 1

DELETE FROM table WHERE uniqueid='1' AND col2='john' Or you change col2='john' to col2='johnny'. Depends on which record you want to delete.

How did you end up with two same "unique" IDs in the first place?