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ORA-01031:insufficient privileges,ORA-01925: maximum of 30 enabled roles exce
(一)ora-01031:insufficient privileges
1.sqlplus "/ as sysdba" 连不上,,报ora-01031:insufficient privileges解决方法
select instance_name from v$instance;#查看Oracle实例名
SQL> select instance_name from v$instance;
INSTANCE_NAME
--------------------------------
orcl
(1)检查sqlnet.ora(WINDOWS下位于%ORACLE_HOME%NETWORKADMIN目录)是否包含这句:SQLNET.AUTHENTICATION_SERVICES=(NTS),没有的话加上
(2)检查登陆的用户是不是在包含在ORA_DBA组中,
windows上是(administrator或安装oracle时候使用的用户),域用户没有连上域服务器时就可能出现这种现象;
linux、unix上root或安装oracle的授权账户
SQL> select * from v$pwfile_users;
USERNAME SYSDBA SYSOPER
------------------------------------------------------------ ---------- ---------
SYS TRUE TRUE
如果返回空,则SYS无dba权限
SQL> grant sysdba to sys;
grant sysdba to sys
*
ERROR at line 1:
ORA-01994: GRANT failed: password file missing or disabled
此次应重建或修改密码文件,详见第(4)步
V$PWFILE_USERS
这个视图列出从口令文件中导出的授予SYSDBA和SYSOPER权限的用户。
列 数据类型 说明
USERNAME
VARCHAR2(30)
包含在口令文件中的用户名
SYSDBA
VARCHAR2(5)
如果此列的值为TURE,则该用户可利用SYSDBA权限进行连接
SYSOPER
VARCHAR2(5)
如果此列的值为TURE,则该用户可利用SYSOPER权限进行连接
(3)要保证 remote_login_passwordfile 参数 = EXCLUSIVE
SQL> show parameter password
NAME TYPE
------------------------------------ ----------------------
VALUE
------------------------------
remote_login_passwordfile string
EXCLUSIVE
#---------如果不是运行
SQL>alter system set remote_login_passwordfile=EXCLUSIVE scope=spfile;
#/*-------------------------
REMOTE_LOGIN_PASSWORDFILE=
{NONE | SHARED}
REMOTE_LOGIN_PASSWORDFILE specifies whether Oracle checks for a password file.
Values:
•
NONE
Oracle ignores any password file. Therefore, privileged users must be authenticated by the operating system.
•
SHARED
One or more databases can use the password file. The password file can contain SYS as well as non-SYS users.
Note:
The value EXCLUSIVE is supported for backward compatibility. It now has the same behavior as the value SHARED.
#-----------------------*/
(4)看看是否需要使用orapassw生成口令文件
比如机器是windows系统:
orapwd file="D:/oracle/product/10g/db_1/database/PWDoratest.ora" password=gp
oswong entries=10
SQL> select * from v$pwfile_users;
USERNAME SYSDB SYSOP
------------------------------ ----- -----
SYS TRUE TRUE
SYS正常显示出来,重新在远程以SYSDBA登录,可正常使用。