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Oracle® Database Reference
11g Release 1 (11.1)

Part Number B28320-01
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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)