如何将dumb文件导入mySQL Server上的Azure DB，转储驻留在blob中。 如何动态访问blob文件

Question

My power shell code, downloads the dump file from azure storage to my local drive. Get-AzureStorageBlobContent -Container $storagecontainername -Blob $backupfilename -Destination $restorefilename

Import happens using the dump file in the local drive. get-content $restorefilename | &"$mysqlpath" -h $servername -u $username -p $password $database

I am looking to replace this $restorefilename with the blob file directly.

Answer 1

There is no built-in cmdlet for this.

You can use some .net method in powershell to directly download the blob files as string.

Note: if the blob storage is public, you can just directly use it's url. if the blob storage is private, you should generate a SAS token for the blob.

sample code as below for a public blob:

$client = New-Object System.Net.WebClient
$client.DownloadString("https://xxx.blob.core.windows.net/f22/t1.txt")

Test result as below:

so in your case, you can write something like below:

$client = New-Object System.Net.WebClient
$restorefilename = $client.DownloadString("https://xxx.blob.core.windows.net/f22/t1.txt")
$restorefilename | &"$mysqlpath" -h $servername -u $username -p $password $database

And if your blob is private, you can follow the screenshot below to generate a sas url for downloading: