User name/password for Oracle 10g default installation

When Oracle database is created, a series of default user and table spaces are created

User name/password for Oracle 10g default installation

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 the Oracle and third party format Plug-ins is installed in the 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-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, 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.

Here are a few of the accounts that function:
1. Sys/change_on_install or INTERNAL
System user, data dictionary owner, super permission owner (SYSDBA)
It is recommended that the password be modified immediately after creation and this user cannot be deleted.
System/manager
Database default administrative user, with DBA role permissions
It is recommended that the password be modified immediately after creation and this user cannot be deleted.

2. Outln/outln
Optimize a planned storage outline user
It is recommended that the password be modified immediately after creation and this user cannot be deleted.


3. Scott/tiger, Adams/wood, Jones/steel, Clark/cloth and Blake/paper.
Experiment, test user, sample list EMP and dept
Can modify the password, the user can be deleted in the product environment is recommended to delete or lock.

4. HR/HR (Human Resources), Oe/oe (Order Entry), sh/sh (Sales history).
Experiment, test user, sample table employees and departments
Can modify the password, the user can be deleted in the product environment is recommended to delete or lock.

5. Dbsnmp/dbsnmp
Intelligent Agent
Can change the password, need to place a new password to the Snmp_rw.ora file, if you do not need intelligent Agents, can be deleted.

at this time to find a set of user name, password prompt is locked before the next installation of Oracle, if the following users do not reset the password, the default password is as follows:

Username/Password Login ID description

Sys/change_on_install SYSDBA or Sysoper cannot log on as normal and can be used as the default system administrator

System/manager sysdba or normal cannot log on as Sysoper and can be used as the default system administrator

Sysman/oem_temp Sysman user name for OMS

Scott/tiger Normal Normal User

Aqadm/aqadm SYSDBA or normal advanced queue administrator

Dbsnmp/dbsnmp sysdba or normal replication administrator

Method One:

Change Password

Sqlplus '/As Sysdba '
Alter user SYS identified by "SYS"

View Database

First login: Conn/as sysdba;
Then execute:
Select name from V$database;

Method Two:

Start sqlplus in cmd; log in with Sqlplus/as sysdba, prompt

Connect to:

Oracle Database 10g Express Edition Release 10.2.0.1.0-production

3. Execute the ALTER user you are locked username account UNLOCK;

4. Re-login with Sql/plus, with the user name and password you just unlocked;

Re-modify the password on it!

Here's how:

1. Running->sqlplus/nolog

2. Enter Conn/as SYSDBA Administrator account Login

3. If the user is locked first unlock:

Alter user SYSTEM account unlock;

4. Change Password:

Alter user system identified by system;

Next, you can log in with Sqlplus.

reprinted from:http://blog.sina.com.cn/s/blog_5f1fec850101cl1g.html