V$SGAINFO

V$SGAINFO displays size information about the SGA, including the sizes of different SGA components, the granule size, and free memory.

Column Datatype Description
NAME VARCHAR2(32) Name of the SGA statistic
BYTES NUMBER Size of the statistic (in bytes)
RESIZEABLE VARCHAR2(3) Indicates whether the statistic is resizeable (YES) or not (NO)