Database backups in the backup set are different from the existing ' JM2012 ' databases. Error handling __ Database

SQL Server 2005 restores the database file in the new library. The database backup in the backup set is different from the existing ' JM2012 ' database. "There are several possible errors:

First, overwrite the original database is not selected when you restore the new database.

WORKAROUND: Options-> Restore Options (Restore options)-> overwrite existing databases (Overwrite the existing database)

Second, the new database file is different from restoring the database filename.

WORKAROUND: Delete the newly created database A, right-click on the database button-Restore the database. Out of the dialog box to find the backup file A.bak, the target Database drop-down box automatically appears in the backup file in the same database name, select it, restore, successful operation.

third, the database backup is not a full backup.

You need to determine if it is a full backup. If you back up your backup files to a new library, you must use a full backup instead of a differential backup file.