How can I delete duplicate rows in a table

Question

I have a table with say 3 columns. There\'s no primary key so there can be duplicate rows. I need to just keep one and delete the others. Any idea how to do this is Sql Serv

Answer 1

After you clean up the current mess you could add a primary key that includes all the fields in the table. that will keep you from getting into the mess again. Of course this solution could very well break existing code. That will have to be handled as well.