oracle中的用户详解 【转】

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http://f.dataguru.cn/thread-128531-1-1.html

  oracle中的用户很多,也很令初学者费解.
oracle中的帐户分为两类:一类是必需的帐户,一类是存储各种应用的帐户

用户名	密码	描述
ANONYMOUS	ANONYMOUS	访问http的匿名用户帐户
CTXSYS	CTXSYS	interMedia Text用户
DBSNMP	DBSNMP	目录集成平台用户
EXFSYS	EXFSYS	表达式过滤器用户
MDDATA	MDDATA	oracle空间数据帐户
MDSYS	MDSYS	oracle空间数据媒体管理员
MGMT_VIEW	MGMT_VIEW
OLAPSYS	MANGER	用于创建olap元数据
ORDPLUGINS	ORDPLUGINS	oracle ineterMedia,video用户
ORDSYS	ORDSYS	image管理员
OUTLN	OUTLN	拥有connect和resource角色
SCOTT	Tiger	样例帐户
SI_INFORMATN_SCHEMA		静止图像浏览帐户
SYS	用户指定	数据库管理帐户
SYSMAN	OEM_TEMP	企业管理器帐户
SYSTEM	用户指定	数据库管理帐户
WK_TEST	WK_TEST	同wksys
WKPROXY		代理帐户
WKSYS	WKSYS	同wk_test
WMSYS	WMSYS	工作空间管理帐户
XDB	CHANGE_ON_INSTALL	xml db帐户

默认情况下oracle指对sys,system,dbsnmp,sysman,mgmt_view5个帐户进行了解锁,如果希望其它用户也能登录需要手工进行解锁

show user  显示当前登录系统的用户名
select username,account_status,expiry_date from dba_user; 查看用户状态
alter user outln account unlock; 解锁帐户
grant connect 帖哦outln identified by 123; 用户授权

SCHEMA OVERVIEW


ANONYMOUS
Purpose:
o Account that allows HTTP access to Oracle XML DB. It is used in place of the APEX_PUBLIC_USER account when the Embedded PL/SQL Gateway (EPG) is installed in the database. EPG is a Web server that can be used with Oracle Database. It provides the necessary infrastructure to create dynamic applications. See also XDB.
Safe To Remove:
o Yes
Recreation Script.:
o $ORACLE_HOME/rdbms/admin/catqm.sql


APEX_030200
Purpose:
o Part of the Oracle Application Express Suite - (Oracle APEX, previously named Oracle HTML DB) which is a freeware software development environment. It allows a fast development cycle to be achieved to create web based applications. The account owns the Application Express schema and metadata. See also APEX_PUBLIC_USER and FLOW_FILES.
Safe To Remove:
o Yes
Recreation Script.:
o $ORACLE_HOME/apex/apexins.sql


APEX_PUBLIC_USER
Purpose:
o Part of the Oracle Application Express Suite - (Oracle APEX, previously named Oracle HTML DB) which is a freeware software development environment. It allows a fast development cycle to be achieved to create web based applications. This minimally privileged account is used for Application Express configuration with Oracle HTTP Server and mod_plsql. See also APEX_030200 and FLOW_FILES.
Safe To Remove:
o Yes
Recreation Script.:
o $ORACLE_HOME/apex/apexins.sql


APPQOSSYS
Purpose:
o Used for storing/managing all data and metadata required by Oracle Quality of Service Management.
Safe To Remove:
o Yes
Recreation Script.:
o $ORACLE_ADMIN/rdbms/admin/catqos.sql


BI
Purpose:
o The account that owns the Business Intelligence schema included in the Oracle Sample Schemas. See also HR, OE, SH, IX and PM.
Safe To Remove:
o Yes – run $ORACLE_HOME/demo/schema/drop_sch.sql
Recreation Script.:
o $ORACLE_HOME/demo/schema/bus_intelligence/bi_main.sql


CTXSYS
Purpose:
o The account used to administer Oracle Text. Oracle Text enables the building of text query applications and document classification applications. It provides indexing, word and theme searching, and viewing capabilities for text.
Safe To Remove:
o Yes
Recreation Script.:
o $ORACLE_HOME/ctx/admin/ctxsys.sql


DBSNMP
Purpose:
o The account used by the Management Agent component of Oracle Enterprise Manager to monitor and manage the database. Password is created at installation or database creation time.
Safe To Remove:
o Yes – run $ORACLE_HOME/rdbms/admin/catnsnmp.sql
Recreation Script.:
o $ORACLE_HOME/rdbms/admin/catsnmp.sql


DIP
Purpose:
o The account used by the Directory Integration Platform. (DIP) to synchronize the changes in Oracle Internet Directory with the applications in the database.
Safe To Remove:
o Yes
Recreation Script.:
o $ORACLE_HOME/rdbms/admin/catdip.sql


EXFSYS
Purpose:
o The account used internally to access the EXFSYS schema, which is associated with the Rules Manager and Expression Filter feature. This feature enables the building of complex PL/SQL rules and expressions. The EXFSYS schema contains the Rules Manager and Expression Filter DDL, DML, and associated metadata.
Safe To Remove:
o Yes
Recreation Script.:
o $ORACLE_HOME/rdbms/admin/exfsys.sql


FLOW_FILES
Purpose:
o Part of the Oracle Application Express Suite - (Oracle APEX, previously named Oracle HTML DB) which is a freeware software development environment. It allows a fast development cycle to be achieved to create web based applications. This account owns the Application Express uploaded files. See also APEX_030200 and APEX_PUBLIC_USER.
Safe To Remove:
o Yes
Recreation Script.:
o $ORACLE_HOME/apex/apexins.sql


HR
Purpose:
o The account that owns the Human Resources schema included in the Oracle Sample Schemas. See also BI, OE, SH, IX and PM.
Safe To Remove:
o Yes – run $ORACLE_HOME/demo/schema/drop_sch.sql
Recreation Script.:
o $ORACLE_HOME/demo/schema/human_resources/hr_main.sql


IX
Purpose:
o The account that owns the Information Transport schema included in the Oracle Sample Schemas. See also BI, HR, OE, SH and PM.
Safe To Remove:
o Yes – run $ORACLE_HOME/demo/schema/drop_sch.sql
Recreation Script.:
o $ORACLE_HOME/demo/schema/info_exchange/ix_main.sql


MDDATA
Purpose:
o The schema used by Oracle Spatial for storing Geocoder and router data. See also SPATIAL_CSW_ADMIN_USR , SPATIAL_WFS_ADMIN_USR and MDSYS.
Safe To Remove:
o Yes
Recreation Script.:
o $ORACLE_HOME/md/admin/catmd.sql


MDSYS
Purpose:
o The Oracle Spatial and Oracle Multimedia Locator administrator account. See also SPATIAL_CSW_ADMIN_USR , MDDATA and SPATIAL_WFS_ADMIN_USR.
Safe To Remove:
o Yes
Recreation Script.:
o $ORACLE_HOME/ord/admin/ordinst.sql


MGMT_VIEW
Purpose:
o An account used by Oracle Enterprise Manager Database Control. Password is randomly generated at installation or database creation time. Users do not need to know this password.
Safe To Remove:
o Yes
Recreation Script.:
o $ORACLE_HOME/sysman/admin/emdrep/bin/RepManager


OE
Purpose:
o The account that owns the Order Entry schema included in the Oracle Sample Schemas. See also BI, HR, SH, IX and PM.
Safe To Remove:
o Yes – run $ORACLE_HOME/demo/schema/drop_sch.sql
Recreation Script.:
o $ORACLE_HOME/ demo/schema/order_entry/oe_main.sql


OLAPSYS
Purpose:
o The account that owns the OLAP Catalog (CWMLite). This account has been deprecated, but is retained for backward compatibility.
Safe To Remove:
o Yes
Recreation Script.:
o $ORACLE_HOME/olap/admin/amdsys.sql


ORACLE_OCM
Purpose:
o This account contains the instrumentation for configuration collection used by the Oracle Configuration Manager.
Safe To Remove:
o Yes
Recreation Script.:
o $ORACLE_HOME/rdbms/admin/catocm.sql


ORDDATA
Purpose:
o This account contains the Oracle Multimedia DICOM data model.
Safe To Remove:
o Yes
Recreation Script.:
o $ORACLE_HOME/ord/admin/ordisysc.sql


ORDPLUGINS
Purpose:
o The Oracle Multimedia user. Plug-ins supplied by Oracle and third-party, format plug-ins are installed in this schema. Oracle Multimedia enables Oracle Database to store, manage, and retrieve images, audio, video, DICOM format medical images and other objects, or other heterogeneous media data integrated with other enterprise information. See also ORDSYS and SI_INFORMTN_SCHEMA.
Safe To Remove:
o Yes
Recreation Script.:
o $ORACLE_HOME/ord/admin/ordinst.sql


ORDSYS
Purpose:
o The Oracle Multimedia administrator account. See also ORDPLUGINS and SI_INFORMTN_SCHEMA.
Safe To Remove:
o Yes
Recreation Script.:
o $ORACLE_HOME/ord/admin/ordinst.sql


OUTLN
Purpose:
o The account that supports plan stability. Plan stability prevents certain database environment changes from affecting the performance characteristics of applications by preserving execution plans in stored outlines. OUTLN acts as a role to centrally manage metadata associated with stored outlines.
Safe To Remove:
o No
Recreation Script.:
o $ORACLE_HOME/rdbms/admin/sql.bsq. Recover from backup or recreate the database.


OWBSYS
Purpose:
o The account for administrating the Oracle Warehouse Builder repository. Access this account during the installation process to define the base language of the repository and to define Warehouse Builder workspaces and users. A data warehouse is a relational or multidimensional database that is designed for query and analysis. See also OWBSYS_AUDIT.
Safe To Remove:
o Yes
Recreation Script.:
o $ORACLE_HOME/owb/UnifiedRepos/cat_owb.sql


OWBSYS_AUDIT
Purpose:
o This account is used by the Warehouse Builder Control Center Agent to access the heterogeneous execution audit tables in the OWBSYS schema.
Safe To Remove:
o Yes
Recreation Script.:
o $ORACLE_HOME/owb/UnifiedRepos/cat_owb.sql


PM
Purpose:
o The account that owns the Product Media schema included in the Oracle Sample Schemas. See also BI, HR, OE, SH and IX.
Safe To Remove:
o Yes – run $ORACLE_HOME/demo/schema/drop_sch.sql
Recreation Script.:
o $ORACLE_HOME/demo/schema/product_media/pm_main.sql


SCOTT
Purpose:
o An account used by Oracle sample programs and examples.
Safe To Remove:
o Yes
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