Oracle賦予用戶sysdba權限（轉）

原文地址：

http://www.linuxidc.com/Linux/2012-09/69632.htm

以SYS用戶進入Oracle，

SQL> grant sysdba to username;

grant sysdba to username

*
ERROR at line 1:
ORA-01994: GRANT failed: password file missing or disabled

首先，把初始化參數REMOTE_LOGIN_PASSWORDFILE的值改成EXCLUSIVE

如果還是有問題，可能是缺少密碼文件，用orapwd創建密碼文件

$ orapwd -h
Usage: orapwd file=<fname> password=<password> entries=<users>

where
file - name of password file (mand),
password - password for SYS (mand),
entries - maximum number of distinct DBA and OPERs (opt), 
There are no spaces around the equal-to (=) character.

這個命令很簡單，密碼文件一般放在$ORACLE_HOME/dbs目錄下，命名規則為orapd+SID,

orapwd FILE='/db/oracle/product/10.2.0/db_1/dbs/orapw+SID'  PASSWORD=oracle   ENTRIES=5  FORCE=y

然后再執行

SQL> grant sysdba to username;

Grant succeeded.

檢查

SQL> select * from v$pwfile_users;

USERNAME                       SYSDB SYSOP
------------------------------ ----- -----
SYS                            TRUE  TRUE
******                          TRUE  FALSE

SYSDB那一欄是TRUE就對了

然后就可以as sysdba連接了