Oracle自带数据库用户作用
部门第一副经理是位大牛，自动化测试的一个方面就是进行了测试服务器系统。这个系统可以方便的为测试、开发创建数据库用户、导入、导出数据，也能进行数据库权限控制，可支持ORACLE10G、ORACLE11G、MSSQL。解决了ORACLE的一个bug：数据库类型TYPE作为OBJECT存储了下来，拥有一个OBJECT_ID，再此使用此文件导入同一数据库的同一实例INSTENSE中时，类型TYPE将创建失败。这对于开发人员来说也极具诱惑力的。 但是由于公司老总还嫌开发占用服务器（其实就是普通的PC啊）过多，导致数据库服务器极少，性能急剧下降！！！ 如此好用的自动化系统，与我渐行渐远了
去年安装了Oracle10g服务器，自认为版本还行吧。对于低版本的可以导入到我的Oracle10g中，对于高版本Oracle11g也可以（使用Oracle10g客户端导出DMP文件，之后再使用Oracle10g客户端导入我的Oracle10g服务器）
今年，客户的增多、客户的数据量的增大，让我无暇再进行Oracle 10g与Oracle 11g直接文件转换了！我必须花费3至4个小时进行文件备份、Oracle 10g的卸载、Oracle 11g的安装。
安装是一个漫长的过程，我安装的时候还将网下拔下。这样就引出我阅读\database\doc\index.htm文件了。 下表就是对看到无数次的自带用户的介绍。有兴趣可以看看喽
| User Name |
Description |
See Also |
| ANONYMOUS |
Allows HTTP access to Oracle XML DB. |
Not applicable |
| APEX_030200 |
The account owns the Oracle Application Express schema and metadata. |
Oracle Application Express Application Builder User's Guide |
| APEX_PUBLIC_USER |
The minimally privileged account used for Oracle Application Express configuration with Oracle HTTP Server and mod_plsql. |
Oracle Application Express Application Builder User's Guide |
| APPQOSSYS |
Used for storing or managing all data and metadata required by Oracle Quality of Service Management. |
None |
| BI |
Owns the Business Intelligence schema included in the Oracle Sample Schemas. It is only available if you loaded the Sample Schemas. |
Oracle Database Sample Schemas |
| CTXSYS |
The Oracle Text account. |
Oracle Text Reference |
| DBSNMP |
Used by Management Agent of Oracle Enterprise Manager to monitor and manage the database. This account is created only if you configure the database to use Database Control. |
Oracle Enterprise Manager Grid Control Installation and Basic Configuration |
| DIP |
Used by Directory Integration Platform (DIP) to synchronize the changes in Oracle Internet Directory with the applications in the database. |
None |
| DVSYS |
There are two roles assciated with this account. Database Vault owner role manages the Database Vault roles and configurations. The Database Vault Account Manager is used to manage database user accounts. Note: Part of Oracle Database Vault user interface text is stored in database tables in the DVSYS schema. By default, only the English language is loaded into these tables. You can use Oracle Database Vault Configuration Assistant to add more languages to Oracle Database Vault. For the necessary steps, refer to Appendix C in Oracle Database Vault Administrator's Guide |
Oracle Database Vault Administrator's Guide |
| EXFSYS |
Owns the Expression Filter schema. |
None |
| FLOWS_FILES |
The account owns the Oracle Application Express uploaded files. |
Oracle Application Express Application Builder User's Guide |
| HR |
Owns the Human Resources schema included in the Oracle Sample Schemas. It is available only if you loaded the Sample Schemas. |
Oracle Database Sample Schemas |
| IX |
Owns the Information Transport schema included in the Oracle Sample Schemas. This account is available only if you loaded the Sample Schemas. |
Oracle Database Sample Schemas |
| LBACSYS |
The Oracle Label Security administrator account. |
Oracle Label Security Administrator's Guide |
| MDDATA |
Used by Oracle Spatial for storing Geocoder and router data. |
Oracle Spatial Developer's Guide |
| MDSYS |
The Oracle Spatial and Oracle Multimedia Locator administrator account. |
Oracle Spatial Developer's Guide |
| MGMT_VIEW |
Used by Oracle Enterprise Manager Database Control. |
None |
| OE |
Owns the Order Entry schema included in the Oracle Sample Schemas. This account is available only if you loaded the Sample Schemas. |
Oracle Database Sample Schemas |
| ORACLE_OCM |
This account contains the instrumentation for configuration collection used by the Oracle Configuration Manager. |
Oracle Configuration Manager Installation and Administration Guide |
| ORDDATA |
This account contains the Oracle Multimedia DICOM data model. |
Oracle Multimedia DICOM Developer's Guide |
| ORDPLUGINS |
The Oracle Multimedia user. Plug-ins supplied by Oracle and third party plug-ins are installed in this schema. |
Oracle Multimedia Reference |
| ORDSYS |
The Oracle Multimedia administrator account. |
Oracle Multimedia Reference |
| OUTLN |
Centrally manages metadata associated with stored outlines. Supports plan stability, which enables maintenance of the same execution plans for the same SQL statements. |
Oracle Database Performance Tuning Guide |
| OWBSYS |
The account used by Oracle Warehouse Builder as its default repository. You must unlock this account after installing the Oracle Database and before starting the Warehouse Builder Repository Assistant. |
Oracle Warehouse Builder Installation and Administration Guide for Windows and Linux |
| PM |
Owns the Product Media schema included in the Oracle Sample Schemas. This account is created only if you loaded the Sample Schemas. |
Oracle Database Sample Schemas |
| SCOTT |
An account used by Oracle sample programs and examples. |
Oracle Database Administrator's Guide |
| SH |
Owns the Sales History schema included in the Oracle Sample Schemas. This account is available only if you loaded the Sample Schemas during an Enterprise Edition installation |
Oracle Database Sample Schemas |
| SI_INFORMTN_SCHEMA |
Stores the information views for the SQL/MM Still Image Standard. |
Oracle Multimedia Reference |
| SPATIAL_CSW_ADMIN_USR |
The Catalog Services for the Web (CSW) account. It is used by the Oracle Spatial CSW cache manager to load all record type metadata, and record instances from the database into the main memory for the record types that are cached. |
Oracle Spatial Developer's Guide |
| SPATIAL_WFS_ADMIN_USR |
The Web Feature Service (WFS) account. It is used by the Oracle Spatial WFS cache manager to load all feature type metadata, and feature instances from the database into main memory for the feature types that are cached. |
Oracle Spatial Developer's Guide |
| SYS |
Used for performing database administration tasks. |
Oracle Database Administrator's Guide |
| SYSMAN |
The account used to perform Oracle Enterprise Manager database administration tasks.This account is created only if you configure the database to use the Database Control. |
Oracle Enterprise Manager Grid Control Installation and Basic Configuration |
| SYSTEM |
Used for performing database administration tasks. |
Oracle Database Administrator's Guide |
| WMSYS |
The account used to store the metadata information for Oracle Workspace Manager. |
Oracle Database Workspace Manager Developer's Guide |
| XDB |
Used for storing Oracle XML DB data and metadata. |
Oracle XML DB Developer's Guide |