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Oracle to PostgreSQL

Oracle to PostgreSQL migration services.

Reduce license and platform dependency without importing hidden Oracle behavior into production. Datrick leads compatibility, redesign, validation, cutover, and stabilization.

Submit the written intake

Written scope first. No calendar gate.

Operating problem

Oracle behavior is embedded in more places than the schema.

The visible migration inventory may include tables, indexes, views, and packages. The real dependency surface can also include PL/SQL behavior, sequences, synonyms, materialized views, scheduler jobs, database links, transaction assumptions, drivers, monitoring, backup procedures, and operational knowledge.

Automatic conversion can accelerate discovery, but it does not decide which Oracle patterns should be preserved, replaced, or removed. A literal conversion may create a PostgreSQL system that is difficult to operate and still behaves differently under the application workload.

Datrick leads the migration as a sequence of explicit compatibility and redesign decisions. Each decision carries an owner, test evidence, production impact, and rollback implication. That keeps platform change connected to business acceptance.

Engagement coverage

What the engagement covers.

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

Scope

Compatibility inventory

Oracle versions, schemas, data types, PL/SQL, packages, jobs, links, features, drivers, integrations, and operating dependencies.

Scope

Target PostgreSQL design

Topology, extensions, data types, schemas, security, availability, recovery, monitoring, maintenance, and ownership.

Scope

Code and query conversion

Procedural logic, functions, packages, SQL behavior, optimizer assumptions, application queries, and items that need redesign.

Scope

Data movement

Initial load, change capture or outage approach, large-object handling, sequence state, reconciliation, encryption, and repeatability.

Scope

Application validation

Driver behavior, transactions, error handling, concurrency, performance, reports, jobs, and representative business workflows.

Scope

Cutover and stabilization

Freeze rules, final sync, checkpoints, acceptance, rollback triggers, monitoring, triage, and PostgreSQL operating handover.

Process and ownership

How the engagement runs.

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

1. Classify Oracle dependencies

Datrick separates direct conversion, controlled adaptation, redesign, retirement, and unresolved items across database and application boundaries.

2. Build the PostgreSQL target

The target is designed for PostgreSQL operation, not as an imitation of the source. Recovery, observability, access, and maintenance are included.

3. Rehearse with business evidence

Conversion and data movement are repeated while application flows, data reconciliation, performance, and cutover timing are verified.

4. Control production transition

Datrick leads checkpoints, technical decisions, rollback assessment, defect triage, and the move into stable PostgreSQL ownership.

Ownership boundary

Datrick owns database compatibility analysis, PostgreSQL target decisions, conversion planning, technical rehearsal, reconciliation design, cutover sequence, and stabilization backlog. The client owns application priorities, business acceptance, licensing decisions, security approval, and final production authority unless delegated in writing.

Service levels

The plan defines conversion defect severity, decision turnaround, rehearsal gates, cutover communication, escalation, rollback authority, and stabilization coverage. [NEEDS INPUT: approved Oracle migration tooling, version coverage, 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 an Oracle to PostgreSQL migration?

The scope can include compatibility assessment, PostgreSQL target design, schema and data conversion, PL/SQL and query work, application validation, rehearsal, reconciliation, cutover, rollback planning, stabilization, and operating handover.

Can all PL/SQL be converted automatically?

Conversion tools can help classify and translate code, but production suitability still requires review. Packages, transaction behavior, dynamic SQL, exception handling, performance assumptions, and Oracle-specific features may require adaptation or redesign.

How is Oracle and PostgreSQL data reconciled?

The plan defines structural, row-count, value-level, aggregate, and business-rule checks according to data criticality. Reconciliation evidence is produced during rehearsal and repeated at cutover.

How is downtime decided?

Downtime depends on data volume, change rate, movement approach, application release design, validation time, and rollback requirements. Datrick measures these factors during rehearsal instead of promising an unsupported window.

Who operates PostgreSQL after cutover?

The target operating owner is named before production transition. Datrick can provide a controlled handover or a separately scoped managed database operations program.

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