Deleting 1 millions rows in SQL Server

Question

I am working on a client\'s database and there is about 1 million rows that need to be deleted due to a bug in the software. Is there an efficient way to delete them besides

Answer 1

Here is something I have used:

1. If the bad data is mixed in with the good-

   INSERT INTO #table 
      SELECT columns 
      FROM old_table 
      WHERE statement to exclude bad rows
   
   TRUNCATE old_table
   
   INSERT INTO old_table 
      SELECT columns FROM #table