Oracle owns both databases, but they target different worlds: Oracle Database serves massive enterprise systems with matching price tags, while MySQL powers the open web.
Key Points
- Cost: MySQL Community is free; Oracle licensing is famously expensive
- Oracle's PL/SQL is a full programming environment; MySQL's procedures are simpler
- Oracle offers advanced features: RAC clustering, materialized views, flashback
- MySQL is lighter to run and administer
- Banks/telecom/government often run Oracle; startups rarely do
- Analysts benefit from knowing both dialect flavours exist — syntax differs slightly
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