Oracle Offload: Your Most Expensive Database Is Serving Your Cheapest Queries Guide
Oracle Database bills by the core, and the reads your applications repeat all day run on the same licensed cores as your transactions. Hazelcast takes that hot path off the database and serves it from memory. Oracle stays the system of record: writes, durability and the audit trail are untouched, nothing is migrated and reads fall back if the layer is switched off. See what repetitive reads cost on a 200-core example at list price, which workloads to offload and the three AWR or Statspack numbers that size the saving.
Download the guide to see where the savings show up and the three profiles where they arrive fastest.