今天在启动数据库时出现了如下问题
错误信息：
SQL> startup
ORA-01078: failure in processing system parameters
LRM-00109: could not open parameter file '/opt/oracle/products/10.1.0.3/db_1/dbs/initjason.ora'
前几天也是出现过类似这问题。链接地址：
http://blog.chinaunix.net/u3/116463/showart_2321195.html
解决办法：
cp $ORACLE_BASE/admin/$ORACLE_SID/pfile/init.ora.85201021251 /opt/oracle/products/10.1.0.3/db_1/dbs/initjason.ora
> sqlplus /nolog
SQL*Plus: Release 10.1.0.3.0 - Production on Thu Jun 8 13:16:00 2006
Copyright (c) 1982, 2004, Oracle. All rights reserved.
SQL> conn / as sysdba
Connected to an idle instance.
SQL> startup
ORACLE instance started.
Total System Global Area 167772160 bytes
Fixed Size 778212 bytes
Variable Size 57679900 bytes
Database Buffers 109051904 bytes
Redo Buffers 262144 bytes
Database mounted.
Database opened.
SQL>
问题解决！
注：Oracle在启动过程中,需要读取参数文件(pfile/spfile)来创建实例.Oracle在启动过程中,寻找参数文件的顺序为:spfile<sid>.ora,spfile.ora,init<sid>.ora.