修改oracle内存

[oracle@bi11g bin]$ ./sqlplus /nolog 

SQL*Plus: Release 11.2.0.1.0 Production on Fri Dec 1618:39:36 2011

Copyright (c) 1982, 2009, Oracle.  All rights reserved.

SQL> conn / as sysdba

Connected.

SQL> show parameter memory

NAME                                 TYPE        VALUE

------------------------------------ -----------------------------------------

hi_shared_memory_address             integer     0

memory_max_target                    big integer 1584M

memory_target                        big integer 1584M

shared_memory_address                integer     0

SQL> alter system set memory_target = 512M scope=spfile

  2  ;

System altered.

SQL> alter system set memory_max_target =1024Mscope=spfile

  2  ;

System altered.

SQL> show parameter memory

NAME                                 TYPE        VALUE

------------------------------------ -----------------------------------------

hi_shared_memory_address             integer     0

memory_max_target                   big integer 1584M

memory_target                        big integer 1584M

shared_memory_address                integer     0

SQL> shutdown immediate

Database closed.

Database dismounted.

ORACLE instance shut down.

SQL> startup

ORACLE instance started.

Total System Global Area 1068937216 bytes

Fixed Size                 2220200 bytes

Variable Size            859836248 bytes

Database Buffers         201326592 bytes

Redo Buffers               5554176 bytes

Database mounted.

Database opened.

SQL> show parameter memory

NAME                                 TYPE        VALUE

------------------------------------ -----------------------------------------

hi_shared_memory_address             integer     0

memory_max_target                    big integer 1G

memory_target                        big integer 512M

shared_memory_address                integer     0

SQL>