SNAP_ID | 
NUMBER | 
NOT NULL | 
Unique snapshot ID | 
DBID | 
NUMBER | 
NOT NULL | 
Database ID for the snapshot | 
INSTANCE_NUMBER | 
NUMBER | 
NOT NULL | 
Instance number for the snapshot | 
RESOURCE_NAME | 
VARCHAR2(30) | 
NOT NULL | 
Name of the resource | 
CURRENT_UTILIZATION | 
NUMBER | 
  | 
Number of (resources, locks, or processes) currently being used | 
MAX_UTILIZATION | 
NUMBER | 
  | 
Maximum consumption of the resource since the last instance start up | 
INITIAL_ALLOCATION | 
VARCHAR2(10) | 
  | 
Initial allocation. This will be equal to the value specified for the resource in the initialization parameter file (UNLIMITED for infinite allocation). | 
LIMIT_VALUE | 
VARCHAR2(10) | 
  | 
Unlimited for resources and locks. This can be greater than the initial allocation value (UNLIMITED for infinite limit). |