V$MAP_SUBELEMENT

V$MAP_SUBELEMENT contains a list of all subelement mapping structures in the shared memory of the instance.

Column	Datatype	Description
`CHILD_IDX`	`NUMBER`	Index in `V$MAP_ELEMENT` corresponding to child element
`PARENT_IDX`	`NUMBER`	Index in `V$MAP_ELEMENT` corresponding to parent element
`SUB_NUM`	`NUMBER`	Subelement number
`SUB_SIZE`	`NUMBER`	Subelement size in HKB
`ELEM_OFFSET`	`NUMBER`	Offset in HKB on child element
`SUB_FLAGS`	`NUMBER`	Subelement flags (currently unused)