设置sga_target和sga_max_size
SQL> show parameter sga; #查看当前的值

设置新的值
SQL> alter system set sga_max_size=10G scope=spfile;
SQL> alter system set sga_target=10G scope=spfile;
shutdown immediate;
startup;
SQL> show parameter sga; #查看当前的值
设置新的值
SQL> alter system set sga_max_size=10G scope=spfile;
SQL> alter system set sga_target=10G scope=spfile;
shutdown immediate;
startup;