You can follow below steps:
- Go to Enterprise Manager and expand all SQL server databases.
- Now click on particular database and right click on it.
- Now you want to select “All Tasks” and click on “Backup Database”.
- You have to select “Database-complete” to take complete backup.
- Now click on “Add” button.
- Now you will get the Name field, here you have to enter name of the backup file and click on “OK”.