DBA_HIST_REPORTS

DBA_HIST_REPORTS displays information about XML reports captured into Automatic Workload Repository (AWR). The reports themselves belong to components such as SQL Monitor, DBOP, and Real-Time ADDM.

Each XML report contains details about some activity of a component. For example, a SQL Monitor report contains a detailed report about a particular execution of a SQL statement, or a Real-Time ADDM report contains system performance data analyzed by Real-Time ADDM.

Column	Datatype	Description
`SNAP_ID`	`NUMBER`	ID of the first Automatic Workload Repository (AWR) snapshot that will be taken after this report is generated
`DBID`	`NUMBER`	Database ID of the current database for the report
`INSTANCE_NUMBER`	`NUMBER`	Instance number (for an Oracle RAC system)
`REPORT_ID`	`NUMBER`	ID of the captured report
`COMPONENT_ID`	`NUMBER`	ID of the component (for example, SQL Monitor) whose report is captured
`SESSION_ID`	`NUMBER`	ID of the session corresponding to the captured report (currently used only for SQL Monitor reports)
`SESSION_SERIAL#`	`NUMBER`	Session serial number corresponding to the captured report (currently used only for SQL Monitor reports)
`PERIOD_START_TIME`	`DATE`	Time when the activity period started
`PERIOD_END_TIME`	`DATE`	Time when the activity period ended
`GENERATION_TIME`	`DATE`	Time when this report was generated
`COMPONENT_NAME`	`VARCHAR2(128)`	Name of the component whose report this is
`REPORT_NAME`	`VARCHAR2(128)`	Name of this report
`REPORT_PARAMETERS`	`VARCHAR2(1024)`	Parameters associated with this report
`KEY1`	`VARCHAR2(128)`	Key1 associated with the captured report
`KEY2`	`VARCHAR2(128)`	Key2 associated with the captured report
`KEY3`	`VARCHAR2(128)`	Key3 associated with the captured report
`KEY4`	`VARCHAR2(256)`	Key4 associated with the captured report
`GENERATION_COST_SECONDS`	`NUMBER`	Time taken to generate this report (in seconds)
`REPORT_SUMMARY`	`VARCHAR2(4000)`	Summary of this report
`CON_DBID`	`NUMBER`	The database ID of the PDB for the sampled session
`CON_ID`¹	`NUMBER`	The ID of the container that `CON_DBID` identifies. 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