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SQL Server to PostgreSQL

SQL Server to PostgreSQL migration services.

Change the database platform without losing application behavior, data trust, or operating control. Datrick leads compatibility, conversion, validation, cutover, and stabilization.

Submit the written intake

Written scope first. No calendar gate.

Operating problem

SQL Server dependencies extend beyond T-SQL objects.

A SQL Server estate may rely on stored procedures, SQL Agent jobs, linked servers, identity behavior, collations, data types, reporting extracts, integration packages, drivers, Windows authentication, backup routines, and operational habits that do not transfer directly to PostgreSQL.

A conversion report identifies syntax gaps. It does not prove that concurrency, transactions, errors, time zones, case behavior, reporting, jobs, and business workflows will behave correctly. Those differences require decisions across database and application ownership, with named acceptance evidence for each material behavior.

Datrick leads one migration backlog across schema, code, data, application, and operations. Each material difference is classified, assigned, tested, and connected to cutover and rollback evidence.

Engagement coverage

What the engagement covers.

The final boundary follows the estate and risk. These workstreams define the normal decision surface.

Scope

Compatibility assessment

SQL Server versions, schemas, T-SQL, jobs, linked resources, data types, collations, drivers, integrations, security, and operations.

Scope

PostgreSQL target design

Topology, schemas, extensions, identity strategy, access, availability, recovery, monitoring, maintenance, and ownership.

Scope

T-SQL and workload conversion

Procedures, functions, triggers, queries, error handling, temporary objects, transaction behavior, and application patterns.

Scope

Data and job migration

Repeatable load, change handling, identity state, reconciliation, schedules, external dependencies, and failure behavior.

Scope

Application and BI validation

Drivers, ORM behavior, concurrency, reporting, exports, integrations, representative workflows, and performance baselines.

Scope

Cutover and operation

Freeze, final movement, evidence gates, acceptance, rollback triggers, stabilization, runbooks, and PostgreSQL support ownership.

Process and ownership

How the engagement runs.

Datrick leads the technical process, maintains the decision record, and makes unresolved risk visible.

1. Map SQL Server behavior

Datrick inventories technical objects and the application and operating behavior that depends on them.

2. Decide conversion versus redesign

Each difference is classified by business effect, implementation path, test requirement, and impact on PostgreSQL operation.

3. Rehearse the production event

Data movement, application release, job activation, reconciliation, performance checks, acceptance, and rollback are timed together.

4. Stabilize PostgreSQL ownership

Datrick leads issue triage, production evidence, performance follow-up, runbooks, and closure of the migration backlog.

Ownership boundary

Datrick owns database assessment, PostgreSQL target decisions, conversion planning, technical rehearsal, reconciliation design, cutover control, and stabilization backlog. The client retains application release ownership, business validation, platform approvals, user communication, and final production authority unless delegated.

Service levels

The migration scope defines defect severity, decision timing, rehearsal gates, cutover communication, escalation, rollback authority, and stabilization coverage. [NEEDS INPUT: approved SQL Server version, tooling, and SLA examples.]

Published proof

Database work that expanded because the operating model held.

Verified duration

5+ years

A confidential IT service firm relationship began with urgent DBA/NOC and migration work, then expanded into BI, reporting, analytics, and ongoing data operations. The IT service firm retained the client relationship.

Verified program value

$20K+ monthly

No client name, logo, system detail, or unsupported metric is added. Read the evidence boundary on the case study page.

Review the managed DBA case study

Related decisions

Continue with the page that matches the operating question.

Frequently asked questions

Questions buyers ask before written scoping.

What is included in a SQL Server to PostgreSQL migration?

The scope can include compatibility assessment, PostgreSQL target design, schema, T-SQL and data conversion, job and integration work, application validation, rehearsal, reconciliation, cutover, rollback planning, stabilization, and handover.

Which SQL Server features need special review?

Stored procedures, SQL Agent jobs, linked servers, identity behavior, collations, data types, temporary objects, error handling, authentication, reporting dependencies, and SQL Server-specific performance patterns commonly require explicit decisions.

How are T-SQL procedures migrated?

Procedures are classified for direct translation, adaptation, application relocation, redesign, or retirement. The decision depends on behavior, coupling, performance, maintainability, and the target operating model.

How is data accuracy proven?

Reconciliation combines structural checks, counts, value comparisons, aggregates, business rules, and representative application results. Required evidence and acceptance owners are defined before production cutover.

Can Datrick operate PostgreSQL after migration?

Yes. Stabilization can transition into a separately scoped PostgreSQL consulting or managed database operations engagement with written authority, service levels, and exclusions.

Written intake

Describe the database, business risk, current ownership, and required decision.

Datrick reviews the situation and returns a direct scope recommendation or the questions required to qualify it.

Submit the written intake