The user name and password indicate that ctxsyscsysctxsys is an interMedia Text user and has the connect, resource, and dba permissions. DBSNMPDBSNMPDBSNMP includes the database roles of CONNECT and resourcehe snmpagent. Run the catnsmp. SQL script to delete this role and the user. INTERNALORACLEINTERNAL is used to perform database management tasks. Including starting and disabling. Note 1: INTERNAL is not a real user name. It is an alias for the SYS user name and SYSDBA permission. NOTE 2: This user requires a password when the ORACLE8i Database is not installed; otherwise, no password is required. MDSYSMDSYSMDSYS is the administrator username for ORACLE spatial Data (spatial) and media (interMedia), audio (audio), video (Vidio), and image. MTSSYSMTSSYSMTSSYS is the username under ORACLE's MTS (Microsoft Transaction Server-Microsoft conversion Server. see Using Microsoft Transaction Server With Oracle9iLBACSYS (ORACLE9i). LBACSYSLBACSYS is the administrator user of ORACLE Identity security. ODMODM is a data mining user and ODM performs data mining. ODM_MTR (ORACLE9i) MTRPWODM_MTR is a user related to the data mining sample program OLAPSYS (ORACLE9i) MANAGEROLAPSYS used to create OLAP metadata. Including OLAP_DBA, RESOURCE, and CONNECT roles. ORDPLUGINSORDPLUGINSORDPLUGINS are the usernames of ORACLE InterMedia and Video. It has CONNECT and RESOURCE roles. ORDSYSORDSYSORDSYS is the username of ORACLE InterMedia Audio Video Locator and Image. It has CONNECT and RESOURCE roles. OUTLNOUTLNOUTLN has the CONNECT and RESOURCE roles and supports scheduled stability. Planned stability is a new feature of ORACLE. Used for optimization. SYSCHANGE_ON_INSTALLSYS is used to execute database management tasks. It includes the following roles: AQ_ADMINISTRATOR_ROLEAQ_USER_ROLE ctxapp, DBA, role, IMP_FULL_DATABASEJAVA_ADMIN, role, JAVAUSERPRIVOEM_MONITOR RECOVERY_CATALOG_OWNERRESOURCE, SELECT_CATALOG_ROLESNMPAGENT, and role for executing database management tasks. It includes the following roles: AQ_ADMINISTRATOR_ROLE and DBA. SCOTTTIGERSCOTT users include CONNECT and RESOURCE database roles. <! -- EndFragment --> author: japankn