Data Management Using B* Trees
The SAP DB data management architecture ensures efficient data storage on disks and fast data access. The SAP DB database system performs automatic load balancing, thereby making reorganization unnecessary. The data areas (devspaces) can be extended online.
The developers of SAP DB have ensured that the structures required by users to implement an efficient I/O strategy are provided and that reorganization does not need to be carried out at all. For this reason, a special data management for the logical data pages has been created. This data management includes the following features:
In addition to this special data management, the database system uses the following logical storage structures: