Home/ Questions/Q 46353
In Process

The Archive Base Latest Questions

Editorial Team
  • 0
Asked: 2026-05-10T15:57:09+00:00

I have a table with say 3 columns. There’s no primary key so there

  • 0

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 Server?

Share

Leave an answer

You must login to add an answer.

Need An Account,

1 Answer

  1. I’d SELECT DISTINCT the rows and throw them into a temporary table, then drop the source table and copy back the data from the temp. EDIT: now with code snippet!

    INSERT INTO TABLE_2  SELECT DISTINCT * FROM TABLE_1 GO DELETE FROM TABLE_1 GO INSERT INTO TABLE_1 SELECT * FROM TABLE_2 GO
    • 0