备份数据库
关机拔下电源和各种连接线抽出机箱打开机箱上盖增加内存
完成后按原样将各个部件及连接线恢复好电开机系统正常运行
进入系统查看发现内存已经顺利安装
修改数据库SGA参数
SQL> show sga
Total System Global Area bytes
Fixed Size bytes
Variable Size bytes
Database Buffers bytes
Redo Buffers bytes
SQL> alter system set sga_max_size=m scope=spfile;
System altered
SQL> shutdown immediate;
SQL> startup
SQL> show sga
Total System Global Area bytes
Fixed Size bytes
Variable Size bytes
Database Buffers bytes
Redo Buffers bytes
检查系统和数据库完全无误后备份系统