Category: Oracle

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Why Companies Are Leaving Oracle for PostgreSQL (And How to Do It Safely)

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TL;DR: Oracle licensing has become a serious financial burden.
A dual-socket server running Oracle Enterprise Edition can cost over €350,000 in base licenses alone, with 22% annual support fees that rise every year.
PostgreSQL is now the most widely used database among developers, with 55.6% adoption overall and 58.2% among professional developers in the 2025 Stack Overflow Developer Survey and proven enterprise maturity.
Companies that have made the switch report 70–80% reductions in database licensing costs.
This post explains what's driving the exodus and what it takes to migrate safely.

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How to Read an AWR Report in Oracle

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When an Oracle database slows down, the first place a DBA should look is the AWR report — a detailed snapshot of what’s happening inside the system.

It reveals where time is spent, which queries are consuming resources, and whether the database is healthy or struggling.

In this post, we’ll walk through the key sections to check so you can quickly tell if your database is performing well — and where to focus your tuning efforts.

Below is the order I (and most senior DBAs) follow when analyzing an AWR report:

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