ALTIBASE Hybrid DBMS represents a new DBMS concept. Its hybrid structure incorporates features of both Memory DBMS (MMDBMS), for unequaled performance, and Disk Resident DBMS (DRDBMS), for processing large amounts of data, in a single DBMS product. ALTIBASE Hybrid DBMS is optimized to realize both effective data management and efficient resource usage.
THE unique advantage of hybrid DBMSs is that data can be saved and managed either on disk or in memory based on the nature of the business and the frequency of database access. With a hybrid DBMS, more advanced caching can be implemented by defining memory tablespaces and allocating frequently accessed data to memory tablespaces.

Advanced caching requires complete integration of MMDBMS and DRDBMS. In a hybrid DBMS, a single integrated Storage Manager manages concurrency control and data recovery, and an integrated Query Processor combines access paths for memory tables and disk tables into a single optimizer for tight integration.

With a hybrid DBMS, corporations can dramatically improve resource usage and operational efficiency. Furthermore, they can minimize initial investment costs by avoiding the procurement of duplicate DBMSs and realize simple management and ease of use by eliminating difficulties that afflict development and management in a heterogeneous DBMS environment.