V$LIBRARY_CACHE_MEMORY displays information about memory allocated to library cache memory objects in different namespaces. A memory object is an internal grouping of memory for efficient management. A library cache object may consist of one or more memory objects.
| Column | Datatype | Description |
|---|---|---|
LC_NAMESPACE |
VARCHAR2(15) |
Library cache namespace |
LC_INUSE_MEMORY_OBJECTS |
NUMBER |
Number of library cache memory objects currently in use in the shared pool |
LC_INUSE_MEMORY_SIZE |
NUMBER |
Total size of library cache in-use memory objects (in megabytes) |
LC_FREEABLE_MEMORY_OBJECTS |
NUMBER |
Number of freeable library cache memory objects in the shared pool |
LC_FREEABLE_MEMORY_SIZE |
NUMBER |
Size of library cache freeable memory objects (in megabytes) |