Oracle教程：sqlplus默认用户名密码及解锁方法
很多的朋友在使用sqlplus创建表空间和用户了，需要的时候竟然忘记了密码，试了好多次都没连接上，进而用户也被锁定，今天给大家介绍下相关的解决方法，希望对遇到这个问题的朋友们，有所帮助哦！
1、安装时选择的自动安装，忘了用户名和密码导致现在试了几个默认的用户名密码後（表格中附带默认用户名及密码），都提示无效的用户名、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 Administrators Guide |
|
MDDATA |
MDDATA |
The schema used by Oracle Spatial for storing Geocoder and router da |
Oracle Spatial Users Guide and Reference |
|
MDSYS |
MDSYS |
The Oracle Spatial and Oracle interMedia Locator administrator account |
Oracle Spatial Users Guide and Reference |
|
DMSYS |
DMSYS |
The Oracle Da |
Oracle Da Oracle Da |
|
OLAPSYS |
MANAGER |
The account used to create OLAP metadata structures. It owns the OLAP Catalog (CWMLite). |
Oracle OLAP Application Developers 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 Users Guide |
|
ORDSYS |
ORDSYS |
The Oracle interMedia administrator account |
Oracle interMedia Users 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 Users Guide |
|
SYS |
CHANGE_ON_INSTALL |
The account used to perform database administration tasks |
Oracle Database Administrators 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 Administrators Guide |
安装ORACLE时，若没有为下列用户重设密码，则其默认密码如下：
用户名/密码 登录身份 说明
sys/change_on_install SYSDBA或SYSOPER 不能以NORMAL登录，可作为默认的系统管理员
system/manager SYSDBA或NORMAL 不能以SYSOPER登录，可作为默认的系统管理员
sysman/oem_temp sysman 为oms的用户名
scott/tiger NORMAL
普通用户
aqadm /aqadm SYSDBA或NORMAL
高级队列管理员
Dbsnmp/dbsnmp SYSDBA或NORMAL 复制管理员
2、在CMD中启动SQLPLUS；用sqlplus/as sysdba登录，提示
连接到：Oracle Database 10g Express Edition Release 10.2.0.1.0 - Production
3、执行ALTER USER 你被锁的用户名 ACCOUNT UNLOCK；
4、重新用SQL/PLUS登录，用你刚刚解锁的用户名、密码；重新修改密码就可以了；
具体操作如下：
1）、运行->sqlplus /nolog
2）、输入conn / as sysdba 管理员账户登录
3）、如果用户被锁定先解锁：alter user system account unlock；
4）、修改密码：alter user system identified by qiushun;
接下来大家就可以用sqlplus登陆了。大家可以试一试；
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