SQL Server to PostgreSQL migration · for small & mid-sized business
SQL Server is licensed per core, with a 4-core minimum per instance — every year on subscription. PostgreSQL costs nothing to license and runs the same workloads, for applications that support it. We convert schema and data, review the T-SQL, prove it in a pilot and cut over outside business hours, on a fixed price and date.
Why now
Sources: Microsoft SQL Server 2025 pricing, Microsoft Lifecycle (SQL Server 2016 and 2017), PostgreSQL Licence.
Savings calculator
Enter what you run today. The calculator applies the vendor's real licensing rules — core minimums included — and compares three years.
Exchange rate used: 1 € = US$ (ECB reference rate, Sep 2026). Everything is calculated in your browser — nothing you enter is sent anywhere.
How we move it
Every application is checked: does its vendor support PostgreSQL? Applications that don't, stay on SQL Server.
Tables, indexes, constraints and data converted with pgloader; data types mapped and row counts verified.
Stored procedures, functions and triggers reviewed and rewritten where needed. This is where most of the effort is — and it's estimated before work starts.
SQL Server Agent jobs become scheduled jobs; SSIS packages and SSRS reports are assessed one by one.
Streaming replication for failover, point-in-time recovery, restores tested before cutover.
Final sync and application switch in an off-hours window; SQL Server stays available as the way back.
Straight talk
How a migration runs
Inventory, written plan, fixed quote and date — before any work starts.
Non-critical systems move first; performance and restores proven on your workloads.
A runbook per wave, agreed windows, a written way back for every step.
Wave by wave, outside your business hours. Anything wrong rolls back.
Documentation, runbooks, full admin access — or StayPatched keeps it patched.
Questions
Only if it supports it. That's the first thing we check — for in-house applications, by testing them in the pilot.
It depends on how much logic lives in the database. We count procedures, functions and triggers in the assessment and price the rewrite before work starts.
Only for the final switch, in an off-hours window. Data is synchronised beforehand so the cutover is short.
Yes. SQL Server stays intact until you confirm the new setup.
Yes — it is one of the most widely used databases for business applications, with replication, point-in-time recovery and decades of production use.
Get a migration plan
A short call, then a written assessment: what moves as-is, what needs care, what should stay — with a fixed price and a fixed date. No obligation.