sysdba和sysoper两个特权用户的区别

SYSDBA and SYSOPER

The following operations are authorized by the SYSDBA and SYSOPER system privileges:

System Privilege	Operations Authorized
SYSDBA	Perform STARTUP and SHUTDOWN operations ALTER DATABASE: open, mount, back up, or change character set CREATE DATABASE DROP DATABASE CREATE SPFILE ALTER DATABASE ARCHIVELOG ALTER DATABASE RECOVER 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 ALTER DATABASE ARCHIVELOG ALTER DATABASE RECOVER (Complete recovery only. Any form of incomplete recovery, such as UNTIL TIME|CHANGE|CANCEL|CONTROLFILE requires connecting as SYSDBA.) Includes the RESTRICTED SESSION privilege This privilege allows a user to perform basic operational tasks, but without the ability to look at user data.     sysoper不能查看其他用户的信息，For SYSDBA this schema is SYS; for SYSOPER the schema is PUBLIC.