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 | 
MEMORY_SIZE | 
NUMBER | 
NOT NULL | 
If the MEMORY_SIZE_FACTOR column has a value of 1, then this column shows the current size of memory, as set by the MEMORY_TARGET initialization parameter.
If the value of the MEMORY_SIZE_FACTOR column is less than or greater than 1, then this column shows a proposed memory size. 
 | 
MEMORY_SIZE_FACTOR | 
NUMBER | 
  | 
A multiplier for the current memory size. Possible values are 0.25, 0.5, 0.75, 1, 1.5, 1.75 and 2. This multiplier times the current memory size equals the value of the MEMORY_SIZE column. | 
ESTD_DB_TIME | 
NUMBER | 
  | 
For current memory size (MEMORY_SIZE_FACTOR = 1), the amount of database time required to complete the current workload. For a proposed memory size, the estimated amount of database time that would be required if the MEMORY_TARGET parameter were changed to the proposed size. | 
ESTD_DB_TIME_FACTOR | 
NUMBER | 
  | 
For a proposed memory size, ratio of estimated database time to current database time | 
VERSION | 
NUMBER | 
  | 
Version number of this recommendation |