Most Firebird upgrades are done by your own developers with the Practical Migration Guide - that works for about 90% of databases. Use our professional migration service when metadata is messy, the deadline is tight, the version is older than 2.5, or you must move many servers with automation.

How to migrate

How to migrate: 90% DIY with the Practical Migration Guide; professional service in 3-4 weeks for complex or legacy cases; Migration Framework for 600+ servers. From EUR 3,000 per schema, minimum 6 workdays.

DIY - ~90%

Application and database developers follow the Practical Migration Guide and the YouTube tutorials. No major issues for most databases.

Watch tutorials

Professional service

We adjust metadata and SQL, can patch Firebird sources (for example custom builds that exclude keywords), and typically finish in 3-4 weeks.

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Version path

Every migration targets Firebird 5.0. From 2.5, 3.0, or 4.0 that is the usual path (guide or service). From 1.0-2.1 it is much harder - a common reason to use the service.

Firebird version path: every version from 1.0 through 4.0 points to 5.0 as the target. 1.0-2.1 are legacy and professional help is recommended; 2.5-4.0 is the typical path using the guide or the service. Versions older than 2.5 are significantly harder.

When to use the professional service

Complex structure

Lots of manual metadata and SQL changes. We handle those, including custom Firebird builds when reserved words block the upgrade.

Fixed deadline

When the cutover date is not negotiable, we run the migration as a project. Typical calendar span is 3-4 weeks.

Legacy versions

Firebird 1.0-2.1 need more than a backup/restore. Our team has done these jumps many times.

Many databases

Multiple servers and customers need a repeatable kit, not one-off scripts. That is what the Migration Framework is for.

How long it takes and what it costs

Estimate depends on metadata size and complexity (tables, procedures, triggers) and how many SQL statements must be checked and fixed. Figures below are IBSurgeon workdays - calendar time is longer because you review intermediate results.

6 days minimum work time
15-20 days average work time
EUR 3,000-5,000 per database schema

Send a metadata-only backup with your request for an exact estimate.

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DIY tutorials

Start with the guide, then the video series for Firebird 5 migration.