SGA info

show parameter db_cache_size
show parameter shared_pool_size
show parameter large_pool_size
show parameter java_pool_size

show parameter pga_aggregate_target

select * from v$sqainfo;


v$sga - Displays summary information about the system global area (SGA).

v$sgainfo - Displays size information about the SGA, including the sizes of different SGA components, the granule size, and free memory.

v$sgastat - Displays detailed information about the SGA.

v$sga_dynamic_components - Displays information about the dynamic SGA components. This view summarizes information based on all completed SGA resize operations since instance startup.

v$sga_dynamic_free_memory - Displays information about the amount of SGA memory available for future dynamic SGA resize operations.

v$sga_resize_ops - Displays information about the last 100 completed SGA resize operations.

v$sga_current_resize_ops - Displays information about SGA resize operations which are currently in progress. An operation can be a grow or a shrink of a dynamic SGA component.