1 Overview of Oracle True Cache

Oracle True Cache is an in-memory, consistent, and automatically managed SQL and key-value (object or JSON) cache for Oracle Database.

For an interactive tour, see Oracle True Cache Technical Architecture.

• About Oracle True Cache
  True Cache is an in-memory, read-only cache in front of an Oracle database.
• Benefits of Oracle True Cache
  Oracle True Cache provides several business benefits related to application development and performance.
• How True Cache Works
  At a high level, here's how Oracle True Cache works.
• Considerations for Using True Cache
  Consider these points when deciding whether to use Oracle True Cache.
• Application Usage Models
  Applications can use True Cache in two ways.
• Lock-Free Concurrency Control
  For applications that work with JSON documents, Oracle extends HTTP entity tag (ETAG) support to implement lock-free, optimistic concurrency control.