18 Facts About TimesTen

Oracle TimesTen In-Memory Database is an in-memory, relational database management system with persistence and high availability.

Originally designed and implemented at Hewlett-Packard labs in Palo Alto, California, TimesTen spun out into a separate startup in 1996 and was acquired by Oracle Corporation in 2005.

Applications access TimesTen using standard database APIs such as ODBC and JDBC.

TimesTen can be used as a standalone database, and is often used as a cache in front of another relational database such as Oracle Database.

TimesTen can be configured as a shared-nothing clustered system supporting databases much larger than the RAM available on a single machine, and providing scalable throughput and high availability.

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TimesTen is an in-memory database that provides very fast data access time.

TimesTen can make use of available RAM available on its host machine, up to terabytes in size; using TimesTen Scaleout databases much larger than the RAM of a single machine are supported.

Datatypes supported by TimesTen are in general a subset of those supported by Oracle Database, including NUMBER, VARCHAR and LOBs; TimesTen specific datatypes such as binary integers are supported.

Applications access TimesTen databases using standard relational APIs such as ODBC, JDBC, OCI, and ODPI-C.

At runtime all TimesTen data is in RAM, however TimesTen utilizes non-volatile storage for database persistence and recoverability.

The combination of checkpoint files and transaction log files allow TimesTen to recover the database in the event of a system failure.

At runtime the data in a TimesTen database is stored in shared memory; this allows application processes to directly attach to the database memory and access it without IPC or context switch overheads.

TimesTen databases are persistent and can provide high availability, they can be used as the only database in many solutions.

However, TimesTen databases are often used alongside other databases such as Oracle Database, with a TimesTen database serving as a cache for a subset of data in the traditional database.

TimesTen provides the capability to cache data from an Oracle Database source.

TimesTen Scaleout allows a single TimesTen database to span many machines.

TimesTen was founded in HP labs by Marie-Anne Neimat, Sherry Listgarten, Kurt Shoens and Kevin Wilkerson, under the name of "Smallbase".

TimesTen had 90 employees and was profitable when it was acquired by Oracle Corporation in 2005.