A cache is an area of the working memory. To prevent the hard disks being accessed unnecessarily, read and write operations are buffered by the database system in the working memory. You can configure the working memory areas using database parameters.
See also:
Concepts of the Database System, Working Memory Areas
Database Manager GUI, Displaying Cache Information
Database Manager CLI, show
In SAP systems, you use the Database Assistant or the liveCache Assistant to display database information.