V$AW_OLAP

7.84 V$AW_OLAP

V$AW_OLAP provides a record of active sessions and their use with analytic workspaces.

A row is generated whenever an analytic workspace is created or attached. The first row for a session is created when the first command is issued. It identifies the SYS.EXPRESS workspace, which is attached automatically to each session. Rows related to a particular analytic workspace are deleted when the workspace is detached from the session or the session ends.

Column	Datatype	Description
`SESSION_ID`	`NUMBER`	A unique numeric identifier for a session
`AW_NUMBER`	`NUMBER`	A unique numeric identifier for an analytic workspace. To get the name of the analytic workspace, join this column to the `AW_NUMBER` column of the `USER_AWS` view or to the `AWSEQ#` column of the `AW$` table.
`ATTACH_MODE`	`VARCHAR2(10)`	`READ ONLY` or `READ WRITE`
`GENERATION`	`NUMBER`	The generation of an analytic workspace. Each UPDATE creates a new generation. Sessions attaching the same workspace between UPDATE commands share the same generation.
`TEMP_SPACE_PAGES`	`NUMBER`	The number of pages stored in temporary segments for the analytic workspace.
`TEMP_SPACE_READS`	`NUMBER`	The number of times data has been read from a temporary segment and not from the page pool.
`LOB_READS`	`NUMBER`	The number of times data has been read from the table where the analytic workspace is stored (the permanent LOB).
`POOL_CHANGED_PAGES`	`NUMBER`	The number of pages in the page pool that have been modified in this analytic workspace.
`POOL_UNCHANGED_PAGES`	`NUMBER`	The number of pages in the page pool that have not been modified in this analytic workspace.
`CON_ID`	`NUMBER`	The ID of the container to which the data pertains. Possible values include: `0`: This value is used for rows containing data that pertain to the entire CDB. This value is also used for rows in non-CDBs. `1`: This value is used for rows containing data that pertain to only the root n: Where n is the applicable container ID for the rows containing data