SQL Command : Backup & Restore DB

--------------------- Backup Database ------------------------------
BACKUP DATABASE  YourDB
TO DISK = ' D:BackUpYourBaackUpFile.bak '

--------------------- Restore Database ------------------------------

Database YourDB has full backup YourBaackUpFile.bak.
It can be restored using following two steps.

Step 1: Retrieve the Logical file name of the database from backup.
RESTORE FILELISTONLY
FROM DISK = 'D:BackUpYourBaackUpFile.bak'
GO

Step 2: Use the values in the LogicalName Column in following Step.
----Make Database to single user Mode
ALTER DATABASE YourDB
SET SINGLE_USER WITH
ROLLBACK IMMEDIATE

----Restore Database
RESTORE DATABASE YourDB
FROM DISK = 'D:BackUpYourBaackUpFile.bak'
WITH MOVE 'YourMDFLogicalName' TO 'D:DataYourMDFFile.mdf',
MOVE 'YourLDFLogicalName' TO 'D:DataYourLDFFile.ldf'

/*If there is no error in statement before database will be in multiuser
mode.
If error occurs please execute following command it will convert
database in multi user.*/

ALTER DATABASE YourDB SET MULTI_USER
GO