DBA_HIST_DATABASE_INSTANCE

DBA_HIST_DATABASE_INSTANCE displays the databases and instances in the Workload Repository.

Column	Datatype	NULL	Description
`DBID`	`NUMBER`	`NOT NULL`	Database ID
`INSTANCE_NUMBER`	`NUMBER`	`NOT NULL`	Instance number
`STARTUP_TIME`	`TIMESTAMP(3)`	`NOT NULL`	Startup time of the instance
`PARALLEL`	`VARCHAR2(3)`	`NOT NULL`	Indicates whether the instance is running in an Oracle Real Application Clusters (Oracle RAC) environment (`YES`) or not (`NO`)
`VERSION`	`VARCHAR2(17)`	`NOT NULL`	Database version
`DB_NAME`	`VARCHAR2(9)`		Name of the database
`INSTANCE_NAME`	`VARCHAR2(16)`		Name of the instance
`HOST_NAME`	`VARCHAR2(64)`		Name of the host
`LAST_ASH_SAMPLE_ID`	`NUMBER`	`NOT NULL`	Last sample ID for the active session history
`PLATFORM_NAME`	`VARCHAR2(101)`		Platform on which the instance is running
`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