DBA_HIST_SYSSTAT displays historical system statistics information. This view contains snapshots of V$SYSSTAT.
| Column | Datatype | NULL | Description | 
|---|---|---|---|
| SNAP_ID | NUMBER | Unique snapshot ID | |
| DBID | NUMBER | Database ID for the snapshot | |
| INSTANCE_NUMBER | NUMBER | Instance number for the snapshot | |
| STAT_ID | NUMBER | Statistic identifier | |
| STAT_NAME | VARCHAR2(64) | Statistic name | |
| VALUE | NUMBER | Statistic value |