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PostgreSQL Migration · Leeds

PostgreSQL Migration in Leeds

Migrating Leeds organisations onto PostgreSQL, where the schema moves easily and the procedural code does not. Years of business logic written into stored procedures and triggers in another database's dialect has to be translated or relocated — and it is usually undocumented, so establishing what it does is most of the work.

Why this comes up

The problem

The tables migrate cleanly and four hundred stored procedures contain logic nobody has read since they were written.

What you get

What we deliver

  • Procedural code inventoried and assessed for what is still in use
  • Logic relocated to the application where it does not belong in the database
  • Remaining procedures translated with behaviour verified, not just syntax
  • Case sensitivity handled, since identifier folding differs between systems
  • Data types mapped deliberately where the source has no direct equivalent
  • Parallel running with reconciliation before the source system is retired

Want this scoped for your business in Leeds?

Thirty minutes, no charge, no sales script. You leave with a written summary of what postgresql migration would actually involve — whether or not you use us.

Book a 30-minute call

Working in Leeds

Yorkshire & the Humber

Leeds is the largest financial and legal centre outside London and a major digital health hub, so compliance, audit trails and data handling tend to be first-order requirements here rather than afterthoughts.

Financial, legal and health clients dominate, so the work almost always carries compliance, audit and data-handling requirements from day one.

Sectors we work with in Leeds

  • Financial & Legal Services
  • Healthcare & Digital Health
  • Retail
  • Higher Education

What we work with

Technologies and platforms

  • PostgreSQL
  • SQL
  • pgloader
  • Python

Who we work with

Industries we serve

  • Financial services
  • Public sector
  • Healthcare
  • Manufacturing
  • Retail

Why us

Why Leeds businesses choose Asionis

  • Projects typically launched within 4–8 weeks
  • No long-term contracts required
  • All team members UK-based
  • Dedicated account manager and development team
  • Transparent reporting with monthly performance metrics
  • Scalable from startup to enterprise

How we work

  1. Step 1

    Free consultation

    A 30-minute call to understand the problem. You keep the written summary either way.

  2. Step 2

    Proposal

    Scope, timeline and a fixed price, in writing, before anything starts.

  3. Step 3

    Build

    Short cycles with regular check-ins, so you see progress rather than hear about it.

  4. Step 4

    Launch and support

    We handle the go-live and stay available afterwards.

PostgreSQL Migration in Leeds — common questions

Why is stored procedure code the hard part?
Because it is business logic in a dialect-specific language with no documentation. Translating the syntax is mechanical; establishing what a procedure is meant to do, whether anything still calls it and whether the new version behaves identically is not.
Should logic move out of the database?
Where it is genuinely application logic, yes — migration is a rare opportunity to relocate it. What belongs in the database is what benefits from being close to the data, and a great deal of procedural code is there for historical reasons rather than good ones.
What surprises people about identifiers?
Case handling. PostgreSQL folds unquoted identifiers to lower case where some systems fold to upper, so code that mixes quoted and unquoted references can produce objects that appear to exist and cannot be found — a small difference with confusing symptoms.
How long should both systems run?
Until reconciliation across a full business cycle is clean. That period is what proves the translated logic produces identical results under real conditions, and it gives the teams depending on the data time to raise discrepancies while the source is still available.
Do you work with businesses across West Yorkshire?
Yes. We are based in Leicester, United Kingdom and work with clients throughout Yorkshire & the Humber, including Leeds and the surrounding West Yorkshire area. Most collaboration happens remotely, and we travel for kick-offs and key milestones.
What kind of Leeds businesses do you usually work with?
Financial, legal and health clients dominate, so the work almost always carries compliance, audit and data-handling requirements from day one. Beyond that we work across Financial & Legal Services, Healthcare & Digital Health, Retail and Higher Education.
Do you cover the areas around Leeds?
Yes — we work throughout Yorkshire & the Humber, including Sheffield, Manchester, York, Newcastle. Leeds is an urban area of roughly 800,000+, and we take on work across the wider West Yorkshire region rather than the city boundary alone.

Talk to us about PostgreSQL Migration in Leeds

A 30-minute call with someone who would actually work on it. No sales script, no obligation.

  • Projects typically launched within 4–8 weeks
  • No long-term contracts required
  • All team members UK-based
  • Dedicated account manager and development team
  • Transparent reporting with monthly performance metrics
  • Scalable from startup to enterprise

Or reach us directly

07707 771599admin@asionis.com

Leicester, United Kingdom