1.停止数据库

sqlplus /nolog
conn / as sysdba;
shutdown

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2.创建sid，修改oracle用户环境变量.bash_profile 文件
返回oracle用户根目录
cd 回车
vi .bash_profile
内容如下：
PATH=$PATH:$HOME/bin
ORACLE_BASE=/opt/oracle/10g;?? export ORACLE_BASE
ORACLE_HOME=$ORACLE_BASE;?? export ORACLE_HOME
ORACLE_SID=ora10g;?? export ORACLE_SID
PATH=$ORACLE_HOME/bin:$PATH

export PATH
unset USERNAME
保存退出。
使变量生效：
. .bash_profile

3.创建目录：
诊断目录

mkdir -p /opt/oracle/admin/ora10g
mkdir -p /opt/oracle/admin/ora10g/adump
mkdir -p /opt/oracle/admin/ora10g/bdump
mkdir -p /opt/oracle/admin/ora10g/cdump
mkdir -p /opt/oracle/admin/ora10g/udump
mkdir -p /opt/oracle/admin/ora10g/pfile
mkdir -p /opt/oracle/admin/ora10g/initsql

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数据文件目录：

mkdir -p /opt/oracle/oradata/ora10g
mkdir -p /opt/oracle/oradata/ora10g/archive

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4.在/opt/oracle/admin/ora10g/pfile目录下创建参数文件：
initora10g.ora,内容如下：

ora10g.__db_cache_size=331350016
ora10g.__java_pool_size=4194304
ora10g.__large_pool_size=8388608
ora10g.__shared_pool_size=138412032
ora10g.__streams_pool_size=0
*._kgl_large_heap_warning_threshold=8388608
*.audit_file_dest='/opt/oracle/admin/ora10g/adump'
*.background_dump_dest='/opt/oracle/admin/ora10g/bdump'
*.compatible='10.2.0.1.0'
*.control_files='/opt/oracle/oradata/ora10g/control01.ctl','/opt/oracle/oradata/ora10g/control02.ctl','/opt/oracle/oradata/ora10g/control03.ctl'
*.core_dump_dest='/opt/oracle/admin/ora10g/cdump'
*.db_2k_cache_size=33554432
*.db_block_size=8192
*.db_domain=''
*.db_file_multiblock_read_count=128
*.db_files=4000
*.db_name='ora10g'
*.db_recovery_file_dest_size=4294967296
*.db_recovery_file_dest=''
*.log_archive_dest='/opt/oracle/oradata/ora10g/archive'
*.log_checkpoints_to_alert=FALSE
*.open_cursors=300
*.parallel_execution_message_size=65535
*.parallel_max_servers=128
*.pga_aggregate_target=209715200
*.processes=150
*.recyclebin='OFF'
*.remote_login_passwordfile='EXCLUSIVE'
*.replication_dependency_tracking=FALSE
*.session_cached_cursors=100
*.sga_target=500m
*.shared_pool_size=100m
*.undo_management='AUTO'
*.undo_retention=0
*.undo_tablespace='UNDOTS'
*.user_dump_dest='/opt/oracle/admin/ora10g/udump'
*.workarea_size_policy='AUTO'
_allow_resetlogs_corruption=true

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5.创建密码文件

orapwd file=/opt/oracle/10g/dbs/orapwora10g.ora password=admin entries=5 force=y

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6.在/opt/oracle/admin/ora10g/initsql目录下编写建库脚本createdb.sql,内容如下：

CREATE DATABASE ora10g
LOGFILE
GROUP 1 ('/opt/oracle/oradata/ora10g/redo01.log','/opt/oracle/oradata/ora10g/redo01_1.log') size 100m reuse,
GROUP 2 ('/opt/oracle/oradata/ora10g/redo02.log','/opt/oracle/oradata/ora10g/redo02_1.log') size 100m reuse,
GROUP 3 ('/opt/oracle/oradata/ora10g/redo03.log','/opt/oracle/oradata/ora10g/redo03_1.log') size 100m reuse
MAXLOGFILES 50
MAXLOGMEMBERS 5
MAXLOGHISTORY 200
MAXDATAFILES 500
MAXINSTANCES 5
ARCHIVELOG
CHARACTER SET ZHS16GBK
NATIONAL CHARACTER SET AL16UTF16
DATAFILE '/opt/oracle/oradata/ora10g/system01.dbf' SIZE 1000M EXTENT MANAGEMENT LOCAL
SYSAUX DATAFILE '/opt/oracle/oradata/ora10g/sysaux01.dbf' SIZE 1000M
UNDO TABLESPACE UNDOTS DATAFILE '/opt/oracle/oradata/ora10g/undo.dbf' SIZE 500M
DEFAULT TEMPORARY TABLESPACE TEMP TEMPFILE '/opt/oracle/oradata/ora10g/temp.dbf' SIZE 500M;

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7.启动数据库，并初始化

sqlplus /nolog
conn / as sysdba;

startup nomount pfile=/opt/oracle/admin/ora10g/pfile/initora10g.ora

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数据库启动完毕
8.执行建库脚本

@/opt/oracle/admin/ora10g/initsql/createdb.sql

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数据库创建完成
9.数据库创建完成后，再创建ORACLE的数据字典。

SQL>@?/rdbms/admin/catalog.sql
SQL>@?/rdbms/admin/catproc.sql
SQL>@?/rdbms/admin/catexp.sql

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到此ORACLE手动创