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Snowflake Migration · Chichester

Snowflake Migration in Chichester

Migrating Chichester organisations onto Snowflake, where the temptation is to recreate the warehouse you had. Much of an existing schema exists to work around the old platform's limits — aggregate tables built because queries were slow, extracts created because concurrency was constrained — and carrying those forward means paying for a new platform to behave like the old one.

Why this comes up

The problem

The migration plan reproduces every aggregate table and nightly extract that existed to compensate for the previous system.

What you get

What we deliver

  • Existing structures assessed for whether they solve a problem that still exists
  • Workarounds for old platform limits identified and dropped deliberately
  • Historic data migrated according to what is genuinely queried
  • Transformations rebuilt rather than translated where the old approach was shaped by constraints
  • Access model redesigned, since the previous one reflected different mechanics
  • Parallel running with reconciliation before the old platform is retired

Want this scoped for your business in Chichester?

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

Book a 30-minute call

Working in Chichester

South East

Chichester is small, affluent and heavily seasonal, with a marine and festival economy that concentrates most of its trade into a few months of the year.

Booking and ticketing for arts and marine operators, built to survive a season that carries the whole year.

Sectors we work with in Chichester

  • Tourism & Heritage
  • Agriculture
  • Marine
  • Arts & Culture
  • Retail

What we work with

Technologies and platforms

  • Snowflake
  • dbt
  • SQL
  • Airflow

Who we work with

Industries we serve

  • Financial services
  • Retail
  • Media companies
  • Manufacturing
  • SaaS businesses

Why us

Why Chichester 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.

Snowflake Migration in Chichester — common questions

Why not lift and shift?
Because you inherit the compromises. Pre-aggregated tables, scheduled extracts and denormalised copies exist because the old platform could not answer the question directly — recreating them means the new platform never gets to demonstrate that it can.
How much history should move?
What is queried, plus what you are required to keep. Storage is inexpensive and migration effort is not, so bringing decades of detail that nobody has queried since it was written is cost without a corresponding use.
What about existing transformations?
Review them rather than translating. Logic written for a platform with different performance characteristics is frequently structured around avoiding operations that are now trivial, and rebuilding it produces something simpler as well as faster.
Is parallel running necessary?
For at least one full reporting cycle. Numbers must reconcile between old and new before anyone decommissions anything, and a month-end comparison finds the discrepancies that daily checks pass over. It also gives the finance and reporting teams a period to build confidence in figures they will shortly have no way of checking against anything.
Do you work with businesses across West Sussex?
Yes. We are based in Leicester, United Kingdom and work with clients throughout South East, including Chichester and the surrounding West Sussex area. Most collaboration happens remotely, and we travel for kick-offs and key milestones.
What kind of Chichester businesses do you usually work with?
Booking and ticketing for arts and marine operators, built to survive a season that carries the whole year. Beyond that we work across Tourism & Heritage, Agriculture, Marine, Arts & Culture and Retail.
Do you cover the areas around Chichester?
Yes — we work throughout South East, including Southampton, Portsmouth, Brighton. Chichester is an urban area of roughly 30,000+, and we take on work across the wider West Sussex region rather than the city boundary alone.

Talk to us about Snowflake Migration in Chichester

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