< p >Oracle11创建实例是数据库管理的一项重要任务,可以将一些无序的数据整理成为一个有序的结构。在这里,我们将从创建Oracle11实例的步骤开始讲解,并提供一些实例创作的技巧。< /p >< p >第一步,需要安装Oracle11g并配置环境变量,然后登录到SQL*Plus中,创建控制文件。具体实现如下:< /p >< pre >CREATE CONTROLFILE REUSE DATABASE "TEST" NORESETLOGS
NOARCHIVELOG
FORCE LOGGING
MAXLOGFILES 16
MAXLOGMEMBERS 3
MAXDATAFILES 100
MAXINSTANCES 8
MAXLOGHISTORY 292
LOGFILE
GROUP 1 '/oracle/disk1/oracle11g/oradata/test/redo01.log' SIZE 100M,
GROUP 2 '/oracle/disk2/oracle11g/oradata/test/redo02.log' SIZE 100M,
GROUP 3 '/oracle/disk3/oracle11g/oradata/test/redo03.log' SIZE 100M
DATAFILE
'/oracle/disk1/oracle11g/oradata/test/system01.dbf',
'/oracle/disk2/oracle11g/oradata/test/sysaux01.dbf',
'/oracle/disk3/oracle11g/oradata/test/undotbs01.dbf',
'/oracle/disk4/oracle11g/oradata/test/users01.dbf'
CHARACTER SET ZHS16GBK
;< /pre >< p >在创建完控制文件后,就可以在Oracle11的启动进程中加入新的实例。具体如下:< /p >< pre >STARTUP NOMOUNT;
ALTER SYSTEM SET control_files=
'/oracle/disk1/oracle11g/oradata/test/control01.ctl',
'/oracle/disk2/oracle11g/oradata/test/control02.ctl'
SCOPE=SPFILE;< /pre >< p >在创建完控制文件并启动了新实例之后,需要给新实例设置参数。下面是一些必要的参数:< /p >< pre >*.audit_file_dest='/u01/app/oracle/admin/TEST/adump'
*.audit_trail='db'
*.compatible='11.2.0.0.0'
*.control_files='/oracle/disk1/oracle11g/oradata/test/control01.ctl','/oracle/disk2/oracle11g/oradata/test/control02.ctl'
*.db_block_size=8192
*.db_create_file_dest='/oracle/disk1/oracle11g/oradata'
*.db_domain=''
*.db_name='test'
*.db_recovery_file_dest='/oracle/disk1/oracle11g/flash_recovery_area'
*.db_recovery_file_dest_size=2G
*.db_unique_name='test'
*.dispatchers='(PROTOCOL=TCP) (SERVICE=testXDB)'
*.memory_target=1G
*.open_cursors=300
*.processes=150
*.remote_login_passwordfile='EXCLUSIVE'
*.undo_tablespace='UNDOTBS1'< /pre >< p >最后,需要给新实例创建用户,并授予相应的权限。具体步骤可以如下:< /p >< pre >CREATE USER ram IDENTIFIED BY password;
GRANT CONNECT,RESOURCE,HR TO ram;
ALTER USER ram QUOTA 100M ON USERS;< /pre >< p >通过以上步骤,您就可以成功创建一个新实例并赋予相应的权限。希望这些技巧对您有所帮助。< /p >