Service 01 · Migration
Database migration to SQL Server, Azure SQL and Microsoft Fabric
Migration is where we come from. The team behind DatabaseBest built SQL Server Migration Assistant (SSMA), so we know exactly what the tools convert automatically, what they don't, and how to close the gap without putting your business at risk.
What we migrate
- Oracle to SQL Server and Azure SQL: PL/SQL packages, triggers, sequences and Oracle-specific data types converted to T-SQL
- IBM Db2 to SQL Server: Db2 LUW, Db2 for z/OS and Db2 for i, including SQL PL procedures
- Sybase (SAP ASE) to SQL Server: Transact-SQL dialect differences, cursors and system procedures
- Teradata and Netezza to Microsoft Fabric: BTEQ and stored logic, workload management and data loads
- MySQL, PostgreSQL, Informix and Access to SQL Server or Azure SQL
- SQL Server to Azure: on-premises instances to Azure SQL Managed Instance, Azure SQL Database or Azure VMs
How a DatabaseBest migration works
Assess
Inventory every schema, object, job and connected application. SSMA and our own analyzers measure conversion complexity so you get a fixed scope and plan.
Convert
Automated conversion handles the bulk; our engineers rewrite what tools can't, such as complex PL/SQL, dynamic SQL and vendor-specific features. AI-assisted review speeds this up.
Validate
Row-count and checksum validation of the data, unit tests for converted code, and side-by-side performance baselines against the source.
Cut over
Rehearsed cutovers with near-zero-downtime replication where needed, a rollback plan, and hypercare after go-live.
Why it matters
Most migrations don't fail on the data; they fail on stored code and the applications around it. Because we migrate the application tier alongside the database, the system works end to end on day one, not just the schema.
Database Migration FAQ
Can SSMA migrate everything automatically?
SSMA usually converts the large majority of objects, but complex PL/SQL packages, dynamic SQL, collections, autonomous transactions and some built-in packages need manual rework. We plan for that up front so it doesn't surprise you late in the project.
Should we move to Azure SQL Database or Azure SQL Managed Instance?
Managed Instance offers near-complete SQL Server compatibility (SQL Agent, cross-database queries, CLR) and suits lift-and-modernize moves. Azure SQL Database suits cloud-native or multi-tenant applications. We recommend a target based on features in use, performance and cost.
How do you minimize downtime during cutover?
We use replication or change data capture to keep the target in sync, rehearse the cutover, and switch over in a short, planned window with a tested rollback path.
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Get a fixed-scope migration assessment: inventory, complexity scoring, target recommendation and an AI-accelerated plan.