Delete statement in SQL is very slow

Question

I have statements like this that are timing out:

DELETE FROM [table] WHERE [COL] IN ( \'1\', \'2\', \'6\', \'12\', \'24\', \'7\', \'3\', \'5\')

Answer 1

1. Disable CONSTRAINT

   ALTER TABLE [TableName] NOCHECK CONSTRAINT ALL;

2. Disable Index

   ALTER INDEX ALL ON [TableName] DISABLE;

3. Rebuild Index

   ALTER INDEX ALL ON [TableName] REBUILD;

4. Enable CONSTRAINT

   ALTER TABLE [TableName] CHECK CONSTRAINT ALL;

5. Delete again