Restore Microsoft SQL Server database using PowerShell

In previous post I wrote about the backup of Microsoft SQL Server database using PowerShell. Opposed operation to backup is restore, which can be executed using following PowerShell script:

    [string] $backupFile = $(throw "Backup file is required"),
    [string] $databaseName = $(throw "Database name is required")

$server = "."

Import-Module SQLPS

Invoke-Sqlcmd -ServerInstance $server -Query "ALTER DATABASE $databaseName SET SINGLE_USER WITH ROLLBACK IMMEDIATE"
Invoke-Sqlcmd -ServerInstance $server -Query "RESTORE DATABASE $databaseName FROM DISK='$backupFile' WITH REPLACE"
Invoke-Sqlcmd -ServerInstance $server -Query "ALTER DATABASE $databaseName SET MULTI_USER WITH ROLLBACK IMMEDIATE"

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At the first step database is set to single user mode. Next the restore of database is executed. After restore the database is set back to multi user mode.

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