Oracle In-Memory Database (IMDB) Cache is an Oracle Database product option that includes the Oracle TimesTen In-Memory Database. It is used as a database cache at the application tier to cache Oracle data and reduce the workload on the Oracle database.
You can cache Oracle data in a TimesTen database by defining a cache grid and then creating cache groups. A cache group in a TimesTen database can cache a single Oracle table or a group of related Oracle tables.
Overview of a cache grid
A cache grid is a set of distributed TimesTen in-memory databases that work together to cache data from an Oracle database and guarantee cache coherence among the TimesTen databases.
Overview of cache groups
Cache groups define the Oracle data to be cached in a TimesTen database. A cache group can be defined to cache all or part of a single Oracle table, or a set of related Oracle tables.
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