Migrating SQL Workload to Azure Marek ChmelMicrosoft MVP: Data PlatformMicrosoft MCSE: Data Management & AnalyticsCertified Ethical Hacker

Options to run SQL Server database

Microsoft SQL Server 2017

on-premise

Microsoft SQL Server 2017

Azure VM

Azure SQL Database

Azure DB Elastic PoolManagedInstance

Azure SQL DW

Migration Preparation

Limitations

• Assess current environment – many services and patterns don’t work

• Several common services are missing• SQL Server Agent

• Azure Webjobs• Azure SQL Elastic Job (S0 tier and higher)• Azure Automation• Azure Functions• On-premise SQL or Azure VM SQL Server with Agent

• SSIS• Azure Data Factory

• SSAS• Azure Analysis Services

• SSRS• PowerBI• Iaas SQL VM with SSRS

More limitations

• Azure SQL DB is a PaaS offering, you can‘t manage SQL Server instance• Cross-database queries

• System views

• Server roles

• DB file management

• Common SQL Server backup

Testing for compatibility

SSDT SQLPACKAGE

SSMS DMA

SSDT

• Use most recent compatibility rules to detect SQL Database V12 incompatibilities

• Import database schema, build a project for a SQL Database V12 deployment

• Corrections can be synchronized back to source database

SqlPackage

• Command-line tool

• Generates report of compatibility issues

• Always check to make sure you have latest version!

SQL Server Management Studio (SSMS)

• Export Data Tier Application in SSMS

• Detects and reports errors to screen

• If no errors detected, you can proceed with migration to Azure SQL Database

• Incompatibilities can be corrected using SSMS

Data Migration Assistant (DMA)

• Replaced SQL Server 2016 Upgrade Advisor Preview

• Standalone tool

• Delivers scenarios to help reduce effort to upgrade

• Can recommend performance and reliability improvements

Correcting Compatibility Issues

• Once you have identifiedthe compatibility issues, youcan start fixing thosedirectly in the source database to make the DB compatible for migration to Azure SQL DB.

Migrating Schema and Data

Migration with SSMS

Transactional Replication

• Decreases downtime for migration

• Requries primary keys for each published table

• Complicated setup, distribution database requried, Publisher and Subscriber configuration, jobs on the servers & monitoring

• Supported Publisher : SQL Server 2016+, SQL Server 2014 SP1 CU3, SQL Server 2012 SP2 CU8

Migrating from Azure SQL Database

Summary