What is soft delete in storage account or delta lake ?

 Soft Delete in storage account


Enabling this configuration for azure storage ensures that even if blobs/data were deleted from the storage account, Blobs/data objects remain recoverable for a particular time which set in the 'Retention policies' [Retention policies can be 7 days to 365 days].

Solution

From Azure Console:


Go to Storage Account


For each Storage Account, navigate to Data Protection


Select set soft delete enabled and enter a number of days you want to retain soft deleted data.


Using Azure Command-Line Interface 2.0:

Update retention days in below command


az storage blob service-properties delete-policy update --days-retained <RetentionDaysValue> --account-name <StorageAccountName> --enable true


Default Value:


When new storage account is created, soft delete is by default disabled.

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