Skip to content

SQL Server to PostgreSQL Migration · Wrexham

SQL Server to PostgreSQL Migration in Wrexham

Moving Wrexham 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 Wrexham?

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 Wrexham

Wales

Wrexham became a city in 2022 and has a strong industrial estate economy, with manufacturers on the English border whose customer base sits largely in the North West of England.

Manufacturing and food production systems for businesses on the border serving North West England customers.

Sectors we work with in Wrexham

  • Manufacturing
  • Food Production
  • Logistics
  • Higher Education
  • Retail

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 Wrexham 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 Wrexham — 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 Wrexham?
Yes. We are based in Leicester, United Kingdom and work with clients throughout Wales, including Wrexham and the surrounding Wrexham area. Most collaboration happens remotely, and we travel for kick-offs and key milestones.
What kind of Wrexham businesses do you usually work with?
Manufacturing and food production systems for businesses on the border serving North West England customers. Beyond that we work across Manufacturing, Food Production, Logistics, Higher Education and Retail.
Do you cover the areas around Wrexham?
Yes — we work throughout Wales, including Chester, Liverpool, Bangor. Wrexham is an urban area of roughly 65,000+, and we take on work across the wider Wrexham region rather than the city boundary alone.

Talk to us about SQL Server to PostgreSQL Migration in Wrexham

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