Azure SQL Managed Instance Series: Archiving Data to Blob Storage with CETAS and Managed Identity

Azure SQL Managed Instance Series: Archiving Data to Blob Storage with CETAS and Managed Identity ‪@jbswiki‬ ‪@azuresqlmanagedinstance‬

#Enable the polybase feature.
Login-AzAccount
$SubscriptionID = "000000-0000-0000-0000-00000000"
$resource_group_name = "RGName"
$ManagedInstanceName = "MIName"
Select-AzSubscription -SubscriptionName $SubscriptionID
Set ServerConfigurationOption with name "allowPolybaseExport" to 1
Set-AzSqlServerConfigurationOption -ResourceGroupName $resource_group_name -InstanceName $ManagedInstanceName -Name "allowPolybaseExport" -Value 1

-- TSQL Script to check if the feature is enabled.
SELECT * FROM sys.configurations WHERE name ='allow polybase export';

Msg 15883, Level 16, State 1, Line 22
Access check for 'CREATE/WRITE' operation against 'https://dbarchivalmi.blob.core.window... failed with HRESULT = '0x80070005'.

Msg 15842, Level 16, State 2, Line 22
Cannot create external table. External table location already exists. Location provided: 'https://dbarchivalmi.blob.core.window...

The Data Management Revolution
🌟 Introduction to Data Virtualization 🌟
Data is the lifeblood of modern businesses, and managing it efficiently is key to success. Enter data virtualization, a concept that's reshaping how we handle data in the cloud. 💭

In this chapter, we'll explore what data virtualization is all about and why it's such a game-changer. 🚀

The CETAS Feature Unveiled
🔍 Understanding CETAS 🔍
👉 CETAS, short for "Create External Table As Select," is your ticket to supercharged data export. This feature, made generally available in May 2023, empowers you to move data seamlessly from your Azure SQL Managed Instance to Azure Storage. 💾

✨ Two Key Scenarios ✨
With CETAS, you can tackle two major scenarios:
Cost-Effective Data Offloading: Do you have data that's rarely accessed but consuming precious storage space? CETAS allows you to offload it to cheaper external storage, like Azure Blob Storage or Azure Data Lake Gen 2.
Quick Data Export for Analytics: Need to feed your analytics solutions like Azure Synapse Analytics with fresh data? CETAS simplifies this process, eliminating the need for complex ETL pipelines. 📈

Scenario Deep Dive
🌊 Scenario: Offloading 'Cold' Data 🌊
Imagine you have a massive operational database filled with historical data like sales orders, logs, and audit records. 📦

🔑 Key Challenge: This data is taking up valuable space, but it's rarely needed for day-to-day operations. You can't delete it, so what do you do? CETAS to the rescue!

We'll walk you through the steps to export this 'cold' data to external storage, saving costs without losing access. You'll even learn how to create a seamless view that combines external and local data, making it transparent to your applications. 📊

The Master Database Strategy
🏢 Sharing Data in Multi-Tenant Environments 🏢
In multi-tenant application setups, the 'master' database, not tied to any specific tenant, plays a crucial role. It can export relevant data into commonly used storage for tenants to consume. 🤝

We'll delve into how CETAS supports this strategy, allowing you to efficiently distribute a shared dataset to multiple consumers. This is a game-changer for businesses with diverse tenant needs. 🏆

A Secure Path Forward
🛡️ The Security and Authorization Dance 🛡️
Enabling the Feature: We'll show you how to activate CETAS in your Azure SQL Managed Instance.
Preparing the Destination Storage Account: Learn the best practices for setting up your storage.

Managed Identity - Your Secure Key
🔐 Managed Identity for Secure Access 🔐
Security is paramount when dealing with data exports. In this section, we'll explore how to use Managed Identity for secure access to your Azure Storage account.

🔑 Key Benefits of Managed Identity 🔑
Secure Authentication: Say goodbye to managing and protecting access keys.
Fine-Grained Control: Assign precise permissions to your managed identity.
Seamless Integration: Managed Identity seamlessly integrates with Azure resources.
We'll guide you through the process of setting up and using Managed Identity, ensuring your data is safe and sound during the export process. 🛡️

Conclusion and Beyond
🔮 The Future of Data Management 🔮
As we wrap up this journey into the world of CETAS and data virtualization, you'll have the tools and knowledge needed to optimize, streamline, and supercharge your data management strategy. 🚀

👏 Thank You for Watching! 👏
Thank you for joining us on this data-driven adventure. If you found this video helpful, don't forget to like, subscribe, and hit that notification bell. 🛎️

Have questions or want to share your experiences with CETAS? Drop a comment below, and let's continue the conversation. 🗨️
Until next time, happy data exporting! 🌐📊🚀

Reference - https://techcommunity.microsoft.com/t...