无法识别术语“Microsoft.SqlServer.Dac.BacPackage::Load”

Question

我从 azure sql db 创建了一个 bacpac，将其复制到 blob，然后从 blob 将其在本地下载。

我在 powershell 中运行这段代码

Add-Type -path "C:\Program Files (x86)\Microsoft SQL Server\140\DAC\bin\Microsoft.SqlServer.Dac.dll"
$restoredDatabaseName = 'AuditTest'
$bacpacFile = "H:\backup\audit\audit.bacpac"
$conn = "Data Source=.;Initial Catalog=master;Connection Timeout=0;Integrated Security=True;"

$importBac = New-Object Microsoft.SqlServer.Dac.DacServices $conn
$loadBac = Microsoft.SqlServer.Dac.BacPackage::Load($bacpacFile)
$importBac.ImportBacpac($loadBac, $restoredDatabaseName)

#Clean up
$loadBac.Dispose()

恢复这个错误：

Microsoft.SqlServer.Dac.BacPackage::Load : The term 'Microsoft.SqlServer.Dac.BacPackage::Load' is not recognized as the name of a cmdlet, function, script file, or operable program. Check the spelling of the 
name, or if a path was included, verify that the path is correct and try again.

我也尝试使用导入数据层向导，但出现以下错误。

Could not load file or assembly 'Microsoft.SqlServer.Dac, Version=13.0.0.0, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a' or one of its dependencies. The system cannot find the file specified. (Microsoft.SqlServer.Management.Dac.DacWizard)

这让我发疯了，我发现了一些关于注册表黑客等向导错误的事情，对 powershell 没有任何帮助。

SQL Azure DB PRS1 在 Azure VM 中恢复到 SQL 2016。

Answer 1

调用静态方法时，完整的类型名称放在方括号中。

应该是这样的：

Add-Type -path "C:\Program Files (x86)\Microsoft SQL Server\140\DAC\bin\Microsoft.SqlServer.Dac.dll"
$restoredDatabaseName = 'AuditTest'
$bacpacFile = "H:\backup\audit\audit.bacpac"
$conn = "Data Source=.;Initial Catalog=master;Connection Timeout=0;Integrated Security=True;"

$importBac = New-Object Microsoft.SqlServer.Dac.DacServices $conn
$loadBac = [Microsoft.SqlServer.Dac.BacPackage]::Load($bacpacFile)
$importBac.ImportBacpac($loadBac, $restoredDatabaseName)

#Clean up
$loadBac.Dispose()