V$SGASTAT

V$SGASTAT displays detailed information on the system global area (SGA).

Column	Datatype	Description
POOL	VARCHAR2(12)	Designates the pool in which the memory in NAME resides: shared pool - Memory is allocated from the shared pool large pool - Memory is allocated from the large pool java pool - Memory is allocated from the Java pool streams pool - Memory is allocated from the Streams pool
NAME	VARCHAR2(26)	SGA component name
BYTES	NUMBER	Memory size in bytes