What does migrating off Oracle actually save?

It removes the Enterprise Edition licence, the priced options, and the 22 percent annual support annuity that renews for as long as you run Oracle. The support annuity is the largest recurring saving.

How long does an Oracle to PostgreSQL migration take to pay back?

On a representative estate paying $800,000 a year all in, a $900,000 one-time migration to Aurora PostgreSQL at $250,000 a year pays back in about 1.6 years and saves roughly $1.85M over five years.

What does not migrate cleanly?

Heavy PL/SQL, packages, Real Application Clusters, Exadata, and deep use of Oracle-specific options raise the conversion effort. Segment the estate and migrate the clean tiers first.

What tools are used to migrate Oracle to PostgreSQL?

The AWS Schema Conversion Tool converts the schema and flags PL/SQL that will not translate automatically, and the AWS Database Migration Service moves the data with limited downtime.

Is a migration worth analysing if we plan to stay on Oracle?

Yes. A credible, costed exit is the strongest lever at an Oracle renewal, because it removes Oracle's assumption that you are captive.

Do I have to talk to a salesperson to read it?

No. Enter your details and the full white paper opens on this page. There is no follow up sales call unless you ask for one.

Buyer side advisory. 500+ enterprise clients across 11 vendor practices. Contact Us →

White Paper · Oracle Database

Leaving Oracle: The PostgreSQL & Aurora Business Case

The Oracle licence and its 22 percent support annuity, not the engine, are what a PostgreSQL migration removes. The payback math, what migrates cleanly, and the negotiation angle.

Format PDF + HTML

Read Time 16 Minutes

Last Updated July 14, 2026

What you will take away

What a migration removes: the licence, the options, and the 22 percent support annuity
The break-even math on a representative estate, with a worked payback
What migrates cleanly and what raises the effort
Aurora, RDS, or self-managed as the destination
Why a credible exit is leverage at renewal even if you stay

500+Enterprise Clients

$2B+Under Advisory

Buyer Side100% Independent

OraclePractice

Free Download

Get the full white paper

Opens on the next screen. Corporate addresses only.

Written byFredrik FilipssonCo Founder & Group CEO · ex Oracle, IBM, SAP

PublishedJuly 14, 2026

Last updatedJuly 14, 2026

Home›Oracle Hub›White Papers›Oracle to PostgreSQL Migration

Related White Papers

More from the Oracle practice

Ready?

Stop overpaying. Start negotiating.

Independent. Buyer side. The advisory firm enterprise software vendors do not want you to hire.

Monthly Licensing Intelligence

What we are seeing across 500+ enterprise clients, delivered monthly. Free.

Vendor Advisory

Cloud & Emerging

Programs

Advisory Services

Assessments

Research

Knowledge Hubs

Tool Hubs

Leaving Oracle: The PostgreSQL & Aurora Business Case

What you will take away

More from the Oracle practice

Stop overpaying. Start negotiating.

Monthly Licensing Intelligence