How to copy all Azure Storage Tables data between two different Storage Accounts with Python

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Background
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This article describes how to copy all Azure Storage Tables data between two different storage accounts.



For this, we will use Azure Storage SDK for Python to copy all tables (and the respective data) from one Azure Storage Table to another Azure Storage Table. This approach will keep the data in the source tables, and will create new tables with the respective data in the destination Azure Storage Table.



This script was developed and tested using the following versions but it is expected to work with previous versions:

  • Python 3.11.7
  • azure-data-tables (version: 12.5.0)
  • azure-core (version: 1.30.1)

​

Approach​




In this section, you can find a sample code to copy all tables data between two Storage Accounts using the Azure Storage SDK for Python.



This Python sample code is based on Azure Storage SDK for Python. Please review our documentation here Azure Tables client library for Python | Microsoft Learn



Prerequisites



Download or use any Python IDE of your choice.

  • On Python side, we will use the following packages:
    • azure-data-tables (more information here azure-data-tables · PyPI). To install, please run:

      pip install azure-data-tables
    • azure-core (more information here azure-core · PyPI). To install, please run:

      pip install azure-core



Please see below the sample code to copy all the tables data between two Azure Storage Accounts using the storage connection string.



Special note: Only tables that do not exist with the same name in the destination Storage Account will be copied.





Code: 
from azure.data.tables import TableServiceClient
from azure.core.exceptions import ResourceExistsError

source_connection_string = "X"
destination_connection_string = "X"

# Create a TableServiceClient for both source and destination accounts
source_table_service = TableServiceClient.from_connection_string(conn_str=source_connection_string)
destination_table_service = TableServiceClient.from_connection_string(conn_str=destination_connection_string)

for table in source_table_service.list_tables():
    source_table_client = source_table_service.get_table_client(table_name=table.name)
    destination_table_client = destination_table_service.get_table_client(table_name=table.name)

    try:
        # Create destination table if it does not exist
        destination_table_client.create_table()

        # Fetch entities from the source table
        entities = source_table_client.list_entities()

        # Insert entities into the destination table
        for entity in entities:
            destination_table_client.create_entity(entity=entity)
        print(f"Table '{table.name}' copied")
        
    except ResourceExistsError:
        print(f"Table '{table.name}' already exists.")





After executing this sample code, it is expected that you will find all the tables from the source Storage Account in the destination Storage Account, as well as the data from those tables.



Disclaimer:​

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