oracle 10g預設使用者名、密碼解鎖、修改使用者密碼

.          安裝時選擇的自動安裝，由於時間久遠忘記使用者名稱、密碼了，導致現在試了幾個預設的使用者名稱密碼後（表格中附帶預設使用者名及密碼），都提示無效的使用者名稱、密碼，終於在試了下dbsnmp/dbsnmp，提示被鎖；

2.          在CMD中啟動SQLPLUS；用sqlplus/as sysdba登入，提示

串連到:

Oracle Database 10g Express Edition Release 10.2.0.1.0 - Production

3.          執行ALTER USER DBSNMP ACCOUNT UNLOCK；

4.          從新用SQL/PLUS登入，設定使用者名稱、密碼；

註：由於剛才解鎖的使用者名稱是DBSNMP，所以這裡設定的使用者名稱也是DBSNMP

Oracle 10g 預設安裝帶來的使用者名稱/密碼

Username	Password	Description	See Also
CTXSYS	CTXSYS	The Oracle Text account	Oracle Text Reference
DBSNMP	DBSNMP	The account used by the Management Agent component of Oracle Enterprise Manager to monitor and manage the database	Oracle Enterprise Manager Grid Control Installation and Basic Configuration
LBACSYS	LBACSYS	The Oracle Label Security administrator account	Oracle Label Security Administrator's Guide
MDDATA	MDDATA	The schema used by Oracle Spatial for storing Geocoder and router data	Oracle Spatial User's Guide and Reference
MDSYS	MDSYS	The Oracle Spatial and Oracle interMedia Locator administrator account	Oracle Spatial User's Guide and Reference
DMSYS	DMSYS	The Oracle Data Mining account.	Oracle Data Mining Administrator's Guide Oracle Data Mining Concepts
OLAPSYS	MANAGER	The account used to create OLAP metadata structures. It owns the OLAP Catalog (CWMLite).	Oracle OLAP Application Developer's Guide
ORDPLUGINS	ORDPLUGINS	The Oracle interMedia user. Plug-ins supplied by Oracle and third party format plug-ins are installed in this schema.	Oracle interMedia User's Guide
ORDSYS	ORDSYS	The Oracle interMedia administrator account	Oracle interMedia User's Guide
OUTLN	OUTLN	The account that supports plan stability. Plan stability enables you to maintain the same execution plans for the same SQL statements. OUTLN acts as a role to centrally manage metadata associated with stored outlines.	Oracle Database Performance Tuning Guide
SI_INFORMTN_SCHEMA	SI_INFORMTN_SCHEMA	The account that stores the information views for the SQL/MM Still Image Standard	Oracle interMedia User's Guide
SYS	CHANGE_ON_INSTALL	The account used to perform database administration tasks	Oracle Database Administrator's Guide
SYSMAN	CHANGE_ON_INSTALL	The account used to perform Oracle Enterprise Manager database administration tasks. Note that SYS and SYSTEM can also perform these tasks.	Oracle Enterprise Manager Grid Control Installation and Basic Configuration
SYSTEM	MANAGER	Another account used to perform database administration tasks.

 

1、使用oracle使用者登入，串連資料庫

[oracle@wuzj ~]$ sqlplus /nolog

SQL*Plus: Release 10.2.0.1.0 - Production on Thu Feb 26 12:06:29 2009

Copyright (c) 1982, 2005, Oracle.  All rights reserved.

SQL> conn /as sysdba
Connected.

//查看使用者
SQL> select username,password from dba_users;

//修改使用者口令 格式 alter user 使用者名稱 identified by 新密碼;

SQL> alter user system identified by manager;

另一種修改值的辦法

 

SQL> alter user system identified by values '2D594E86F93B17A1';

 

使用者已更改。

//在試試這個密碼

 

SQL> connect system/oracle

 

已串連。

      //這個密碼就不靈了

 

SQL> connect system/manager

 

ERROR:

 

ORA-01017: invalid username/password; logon denied