.oraenv xxx

alter system set sga_max_size=4g scope=spfile;

sql>alter system set sga_target=4g;

sql>startup force;

ORA-27102: out of memory

SQL> startup nomount

ORA-27102: out of memory

SQL> shutdown immediate

ORA-01034: ORACLE not available

ORA-27101: shared memory realm does not exist

Linux Error: 2: No such file or directory

SQL> quit

Disconnected

--做一個pfile，進去修改設置出錯的參數，註意strings出來的控制文件格式可能有問題

[oracle@edsir1p8- dbs]$ strings spfilePROD4.ora >>/home/oracle/aa.ora

[[email protected] ~]$ sqlplus / as sysdba

SQL*Plus: Release 11.2.0.1.0 Production on Wed Jun 21 09:14:12 2017

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

Connected to an idle instance.

SQL> startup pfile=‘/home/oracle/aa.ora‘

ORACLE instance started.

Total System Global Area 129724416 bytes

Fixed Size 1334996 bytes

Variable Size 113246508 bytes

Database Buffers 8388608 bytes

Redo Buffers 6754304 bytes

Database mounted.

Database opened.

SQL> show parameter spfile;

NAME TYPE VALUE

-spfile string

SQL> create spfile from pfile=‘/home/oracle/aa.ora‘ ;

File created.

SQL> shutdown immediate;

Database closed.

Database dismounted.

ORACLE instance shut down.

SQL> startup

ORACLE instance started.

otal System Global Area 129724416 bytes

Fixed Size 1334996 bytes

Variable Size 113246508 bytes

Database Buffers 8388608 bytes

Redo Buffers 6754304 bytes

Database mounted.

Database opened.

SQL> show parameter spfile;

NAME TYPE VALUE

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

----spfile string /u01/app/oracle/product/11.2.0

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