Cambiar memoria SGA

Grid Standalone

ALTER SYSTEM SET SGA_TARGET=10G SCOPE=spfile;
ALTER SYSTEM SET SGA_MAX_SIZE=10G SCOPE=spifle;

En un ambiente RAC

ALTER SYSTEM SET SGA_TARGET=10G SCOPE=SPFILE SID='*';
ALTER SYSTEM SET SGA_MAX_SIZE=10G SCOPE=SPFILE SID='*';