Oracle_Optimal_Size (String property)

Specifies an optimal size in bytes for a rollback segment. The Optimal keyword is relevant only to rollback segments. Oracle maintains the optimal size for the rollback segment by dynamically deallocating extents when their data is no longer needed for active transactions. Oracle deallocates as many extents as possible without reducing the total size of the rollback segment below the OPTIMAL value.

Limits: The value of OPTIMAL cannot be less than the space initially allocated by the MINEXTENTS, INITIAL, NEXT, and PCTINCREASE parameters. The maximum value depends on your operating system. Oracle rounds values up to the next multiple of the data block size.

Default: The default value for optimal size is NULL, which indicates no optimal size for the rollback segment. Oracle does not deallocate the extents of the rollback segment.

Tagged Values

Name Value
Data_TypeString
Long_Id{E7AB3CC0-47AD-4A10-8972-C0FB869EE7CB}+4020287a
tag_DBMS_Brands_And_VersionsOracle 6.0+
tag_Display_Name_ResourceOptimal
tag_Is_Physicaltrue
tag_Legacy_Property_Is_Physicaltrue
tag_Legacy_Property_Visualizer_TypeEDIT

Valid values

ValueClass NameDisplay Name
0NullNull
1ValueSpecific Value