OLAP Tables Owned by SYS

The SYS user owns several tables associated with analytic workspaces. Table: OLAP Tables Owned By SYS provides brief descriptions.

Important:

These tables are vital for the operation of Oracle OLAP. Do not delete them or attempt to modify them directly without being fully aware of the consequences.

Table A-3 OLAP Tables Owned By SYS

Table	Description
`AW$`	Maintains a record of all analytic workspaces in the database, recording its name, owner, and other information.
`AW$AWMD`	Stores the `AWMD` analytic workspace, which contains programs for creating metadata catalogs.
`AW$AWREPORT`	Stores the `AWREPORT` analytic workspace, which contains a program named `AWREPORT` for generating a summary space report.
`AW$AWXML`	Stores the `AWXML` analytic workspace, which contains programs for creating and managing analytic workspaces for Oracle Database 10g Release 10.1.0.4 and later.
`AW$EXPRESS`	Stores the `EXPRESS` analytic workspace. It contains objects and programs that support basic operations. `EXPRESS` is used any time a session is open.
`AW_OBJ$`	Describes the objects stored in analytic workspaces.

`AW_PROP$`	Stores analytic workspace object properties.

`PS$`	Maintains a history of all page spaces. A page space is an ordered series of bytes equivalent to a file. Oracle OLAP manages a cache of workspace pages. Pages are read from storage in a table and written into the cache in response to a query. The same page can be accessed by several sessions. The information stored in `PS$` enables Oracle OLAP to discard pages that are no longer in use, and to maintain a consistent view of the data for all users, even when the workspace is being modified during their sessions. When changes to a workspace are saved, unused pages are purged and the corresponding rows are deleted from `PS$`.