• If I have a concern, I detach the existing database and change the extension to .old (ie: mydbname.mdf.old and mydbname.ldf.old). Then I restore from the backup. If anything fails, all I have to do is remove the .old part of the extension and attach the files. Once I know everything is good-to-go, I delete the old files and that frees up the space.

    -SQLBill