Property | Description |
---|---|
Parameter type | String |
Syntax | UNDO_MANAGEMENT = { MANUAL | AUTO } |
Default value | MANUAL |
Modifiable | No |
Basic | Yes |
Real Application Clusters | Multiple instances must have the same value. |
UNDO_MANAGEMENT
specifies which undo space management mode the system should use. When set to AUTO
, the instance starts in automatic undo management mode. In manual undo management mode, undo space is allocated externally as rollback segments.