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SQL Server to PostgreSQL Migration · Belfast

SQL Server to PostgreSQL Migration in Belfast

Moving Belfast systems from SQL Server to PostgreSQL, where a difference in text comparison quietly changes results. SQL Server's default collation ignores case, so searches have always matched regardless of how a name was typed — and in PostgreSQL they do not, which turns a working lookup into one that silently returns nothing.

Why this comes up

The problem

Customer searches stopped matching after the move, because comparisons are no longer case-insensitive.

What you get

What we deliver

  • Collation behaviour addressed explicitly, since comparisons change meaning
  • Case-insensitive lookups reimplemented where the application relied on them
  • Stored procedures and functions converted from T-SQL rather than assumed portable
  • SSIS packages and SSRS reports given destinations, as neither transfers
  • Identity columns mapped to sequences with their current values preserved
  • Windows authentication replaced, because PostgreSQL handles identity differently

Want this scoped for your business in Belfast?

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

Book a 30-minute call

Working in Belfast

Northern Ireland

Belfast has a substantial fintech and cyber security sector, and businesses trading here deal with a distinct regulatory position post-Brexit that affects goods moving between Northern Ireland, Great Britain and the Republic.

Fintech and security-accredited systems, plus trading platforms that handle the specific customs position on goods.

Sectors we work with in Belfast

  • Fintech
  • Cyber Security
  • Film & Media
  • Manufacturing
  • Higher Education

What we work with

Technologies and platforms

  • PostgreSQL
  • SQL Server
  • PL/pgSQL
  • SQL

Who we work with

Industries we serve

  • Financial services
  • Manufacturing
  • Healthcare
  • Public sector
  • Professional services

Why us

Why Belfast 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.

SQL Server to PostgreSQL Migration in Belfast — common questions

Why does collation cause so much trouble?
Because it changes results rather than raising errors. Queries that matched a surname regardless of capitalisation stop matching, and joins on text columns can quietly return fewer rows — which is far harder to spot than a failure that announces itself.
How is case-insensitivity restored?
Deliberately, per column or query. Options include a case-insensitive collation, normalising values on the way in, or indexing a lower-case expression — each has consequences for indexing and performance, so it is a decision rather than a setting to copy across.
What happens to SSIS and SSRS?
They need replacing, and this is routinely omitted from scope. Integration packages and reports built on the Microsoft data platform have no PostgreSQL equivalent, so the migration is of the surrounding estate as much as of the database itself.
Is the licensing saving the main driver?
Often, and it can be considerable at scale given per-core pricing. It is worth setting against the conversion cost including the reporting and integration work, because organisations comparing licence fees alone tend to underestimate the project by a wide margin.
Do you work with businesses across County Antrim?
Yes. We are based in Leicester, United Kingdom and work with clients throughout Northern Ireland, including Belfast and the surrounding County Antrim area. Most collaboration happens remotely, and we travel for kick-offs and key milestones.
What kind of Belfast businesses do you usually work with?
Fintech and security-accredited systems, plus trading platforms that handle the specific customs position on goods. Beyond that we work across Fintech, Cyber Security, Film & Media, Manufacturing and Higher Education.
Do you cover the areas around Belfast?
Yes — we work throughout Northern Ireland, including Lisburn, Bangor, Newry. Belfast is an urban area of roughly 345,000+, and we take on work across the wider County Antrim region rather than the city boundary alone.

Talk to us about SQL Server to PostgreSQL Migration in Belfast

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