Oracle创建数据库可以采取dbca，也可采取手动脚本创建；版本：oracle10.2.1，手动脚本创建数据库的方法总结如下：
注意：相关目录必须先创建，将相关的目录改为自己的目录即可；
Step 1: Decide on Your Instance Identifier (SID)
Step 2: Establish the Database Administrator Authentication Method
Step 3: Create the Initialization Parameter File and admin directory
db_block_size=8192
db_file_multiblock_read_count=16
open_cursors=300
db_domain=""
db_name=orcl
background_dump_dest=/u01/app/oracle/admin/orcl/bdump
core_dump_dest=/u01/app/oracle/admin/orcl/cdump
user_dump_dest=/u01/app/oracle/admin/orcl/udump
control_files=("/u01/app/oracle/oradata/orcl/control01.ctl",
"/u01/app/oracle/oradata/orcl/control02.ctl",
"/u01/app/oracle/oradata/orcl/control03.ctl")
db_recovery_file_dest=/u01/app/oracle/flash_recovery_area
db_recovery_file_dest_size=2147483648
compatible=10.2.0.1.0
processes=150
sga_target=283115520
audit_file_dest=/u01/app/oracle/admin/orcl/adump
remote_login_passwordfile=EXCLUSIVE
pga_aggregate_target=94371840
undo_management=AUTO
undo_tablespace=UNDOTBS1
Step 4: Start the Instance
STARTUP NOMOUNT
Step 5: Issue the CREATE DATABASE Statement
CREATE DATABASE "orcl"
MAXINSTANCES 8
MAXLOGHISTORY 1
MAXLOGFILES 16
MAXLOGMEMBERS 3
MAXDATAFILES 100
DATAFILE '/u01/app/oracle/oradata/orcl/system01.dbf' SIZE 300M
EXTENT MANAGEMENT LOCAL
SYSAUX DATAFILE '/u01/app/oracle/oradata/orcl/sysaux01.dbf' SIZE 120M
SMALLFILE DEFAULT TEMPORARY TABLESPACE TEMP TEMPFILE '/u01/app/oracle/oradata/orcl/temp01.dbf' SIZE 20M
SMALLFILE UNDO TABLESPACE "UNDOTBS1" DATAFILE '/u01/app/oracle/oradata/orcl/undotbs01.dbf' SIZE 200M
CHARACTER SET WE8ISO8859P1
NATIONAL CHARACTER SET AL16UTF16
LOGFILE GROUP 1 ('/u01/app/oracle/oradata/orcl/redo01.log') SIZE 51200K,
GROUP 2 ('/u01/app/oracle/oradata/orcl/redo02.log') SIZE 51200K,
GROUP 3 ('/u01/app/oracle/oradata/orcl/redo03.log') SIZE 51200K
USER SYS IDENTIFIED BY "oracle" USER SYSTEM IDENTIFIED BY "oracle";
Step 6: Run Scripts to Build Data Dictionary Views
CONNECT SYS/password AS SYSDBA
@$ORACLE_HOME/rdbms/admin/catalog.sql
@$ORACLE_HOME/rdbms/admin/catproc.sql