使用 PowerShell 将 Azure SQL 单一数据库还原到更早的时间点Use PowerShell to restore an Azure SQL single database to an earlier point in time

• 04/29/2019
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此 PowerShell 脚本示例将 Azure SQL 数据库还原到特定的时间点。This PowerShell script example restores an Azure SQL database to a specific point in time.

如果没有 Azure 订阅，可在开始前创建一个试用帐户。If you don't have an Azure subscription, create a trial account before you begin.

本教程需要 AZ PowerShell 1.4.0 或更高版本。This tutorial requires AZ PowerShell 1.4.0 or later. 如果需要进行升级，请参阅 Install Azure PowerShell module（安装 Azure PowerShell 模块）。If you need to upgrade, see Install Azure PowerShell module. 此外，还需要运行 Connect-AzAccount -EnvironmentName AzureChinaCloud 以创建与 Azure 的连接。You also need to run Connect-AzAccount -EnvironmentName AzureChinaCloud to create a connection with Azure.

示例脚本Sample script

# Connect-AzAccount -Environment AzureChinaCloud
$SubscriptionId = ''
# Set the resource group name and location for your server
$resourceGroupName = "myResourceGroup-$(Get-Random)"
$location = "chinaeast"
# Set an admin login and password for your server
$adminSqlLogin = "SqlAdmin"
$password = "ChangeYourAdminPassword1"
# Set server name - the logical server name has to be unique in the system
$serverName = "server-$(Get-Random)"
# The sample database name
$databaseName = "mySampleDatabase"
# The restored database names
$restoreDatabaseName = "MySampleDatabase_GeoRestore"
$pointInTimeRestoreDatabaseName = "MySampleDatabase_10MinutesAgo"
# The ip address range that you want to allow to access your server
$startIp = "0.0.0.0"
$endIp = "0.0.0.0"

# Set subscription 
Set-AzContext -SubscriptionId $subscriptionId 

# Create a resource group
$resourceGroup = New-AzResourceGroup -Name $resourceGroupName -Location $location

# Create a server with a system wide unique server name
$server = New-AzSqlServer -ResourceGroupName $resourceGroupName `
    -ServerName $serverName `
    -Location $location `
    -SqlAdministratorCredentials $(New-Object -TypeName System.Management.Automation.PSCredential -ArgumentList $adminSqlLogin, $(ConvertTo-SecureString -String $password -AsPlainText -Force))

# Create a server firewall rule that allows access from the specified IP range
$firewallRule = New-AzSqlServerFirewallRule -ResourceGroupName $resourceGroupName `
    -ServerName $serverName `
    -FirewallRuleName "AllowedIPs" -StartIpAddress $startIp -EndIpAddress $endIp

# Create a blank database with an S0 performance level
$database = New-AzSqlDatabase  -ResourceGroupName $resourceGroupName `
    -ServerName $serverName `
    -DatabaseName $databaseName `
    -RequestedServiceObjectiveName "S0" 

Start-Sleep -second 600

# Restore database to its state 7 minutes ago
# Note: Point-in-time restore requires database to be at least 5 minutes old
Restore-AzSqlDatabase `
      -FromPointInTimeBackup `
      -PointInTime (Get-Date).AddMinutes(-2) `
      -ResourceGroupName $resourceGroupName `
      -ServerName $serverName `
      -TargetDatabaseName $pointInTimeRestoreDatabaseName `
      -ResourceId $database.ResourceID `
      -Edition "Standard" `
      -ServiceObjectiveName "S0"

清理部署Clean up deployment

使用以下命令删除资源组及其相关的所有资源。Use the following command to remove the resource group and all resources associated with it.

Remove-AzResourceGroup -ResourceGroupName $resourcegroupname

脚本说明Script explanation

此脚本使用以下命令。This script uses the following commands. 表中的每条命令均链接到特定于命令的文档。Each command in the table links to command specific documentation.

后续步骤Next steps

有关 Azure PowerShell 的详细信息，请参阅 Azure PowerShell 文档。For more information on the Azure PowerShell, see Azure PowerShell documentation.

可以在 Azure SQL 数据库 PowerShell 脚本中找到更多 SQL 数据库 PowerShell 脚本示例。Additional SQL Database PowerShell script samples can be found in the Azure SQL Database PowerShell scripts.