oracle 11g 忘记默认用户密码

首先启动sqlplus
输入用户名：sqlplus / as sysdba
密码空缺
如果用户被锁定，记得加上
SQL> alter user dbsnmp account unlock;

User altered.
然后修改密码
SQL> alter user dbsnmp identified by dbsnmp;

User altered.
现在就可以用用户名：dbsnmp 密码：dbsnmp登录了。

Oracle 10g 默认安装带来的用户名/密码

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.	Oracle Database Administrator's Guide

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