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Oracle数据库中sys和system两个用户的区别

2008-07-30 06:50:51 编辑來源:互联网 国际版 评论
 
 
本文为【Oracle数据库中sys和system两个用户的区别】的汉字拼音对照版显示拼音
  sysshiOracleshujukuzhongquanxianzuigaodezhanghaojuyoucreate databasedequanxianersystemmeiyouzhegequanxiansysdejiaoseshisysdbasystemdejiaoseshisysoper

  qiyujiushitamenlianggeyonghugongyoudequanxianle

  startup/shutdown/dbalianggeyonghudoushikeyiguanlide

  pingshiyongsystemlaiguanlishujukujiukeyilezhegeyonghudequanxianduiyuputongdeshujukuguanlilaishuoyijingzugouquanxianle

  SYSDBA

  Perform STARTUP and SHUTDOWN operations

  ALTER DATABASE: open, mount, back up, or change character set

  CREATE DATABASE

  CREATE SPFILE

  ARCHIVELOG and RECOVERY

  Includes the RESTRICTED SESSION privilege

  Effectively, this system privilege allows a user to connect as user SYS.

  SYSOPER

  Perform STARTUP and SHUTDOWN operations

  CREATE SPFILE

  ALTER DATABASE OPEN/MOUNT/BACKUP

  ARCHIVELOG and RECOVERY

  Includes the RESTRICTED SESSION privilege

  This privilege allows a user to perform basic operational tasks, but without the ability to look at user data原文
 
 
sys是Oracle数据库中权限最高的帐号,具有create database的权限,而system没有这个权限,sys的角色是sysdba,system的角色是sysoper。 其余就是他们两个用户共有的权限了: startup/shutdown/dba两个用户都是可以管理的。 平时用system来管理数据库就可以了。这个用户的权限对于普通的数据库管理来说已经足够权限了。 SYSDBA Perform STARTUP and SHUTDOWN operations ALTER DATABASE: open, mount, back up, or change character set CREATE DATABASE CREATE SPFILE ARCHIVELOG and RECOVERY Includes the RESTRICTED SESSION privilege Effectively, this system privilege allows a user to connect as user SYS. SYSOPER Perform STARTUP and SHUTDOWN operations CREATE SPFILE ALTER DATABASE OPEN/MOUNT/BACKUP ARCHIVELOG and RECOVERY Includes the RESTRICTED SESSION privilege This privilege allows a user to perform basic operational tasks, but without the ability to look at user data
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