Data dictionary tables are not directly accessible, but you can access information in them through data dictionary views. To list the data dictionary views available to you, query the view DICTIONARY.
Many data dictionary tables have three corresponding views:
An ALL_ view displays all the information accessible to the current user, including information from the current user's schema as well as information from objects in other schemas, if the current user has access to those objects by way of grants of privileges or roles.
A DBA_ view displays all relevant information in the entire database. DBA_ views are intended only for administrators. They can be accessed only by users with the SELECT ANY DICTIONARY privilege. This privilege is assigned to the DBA role when the system is initially installed.
A USER_ view displays all the information from the schema of the current user. No special privileges are required to query these views.
The columns of the ALL_, DBA_, and USER_ views corresponding to a single data dictionary table are usually nearly identical. Therefore, these views are described in full only once in this chapter, at their first occurrence alphabetically, and are listed without full descriptions at their other occurrences.
A number of data dictionary views are relevant only if you are using Oracle Replication. Table 2-1 lists these views.
The following are additional Oracle Replication data dictionary views:
DEFCALLDEFCALLDESTDEFDEFAULTDESTDEFERRCOUNTDEFERRORDEFLOBDEFPROPAGATORDEFSCHEDULEDEFTRANDEFTRANDESTSee Also:
Oracle Database Advanced Replication Management API Reference for information about these viewsA number of data dictionary views are relevant only if you are using Oracle Workspace Manager. Table 2-2 lists these views.
The following are additional Oracle Workspace Manager data dictionary views:
ROLE_WM_PRIVSWM_COMPRESS_BATCH_SIZESWM_COMPRESSIBLE_TABLESWM_EVENTS_INFOWM_INSTALLATIONWM_REPLICATION_INFOSee Also:
Oracle Database Workspace Manager Developer's Guide for information about these viewsThe following data dictionary views are only available after you create an optional recovery catalog (which contains schemas containing information about backups) for use with Recovery Manager:
RC_ARCHIVED_LOGRC_BACKUP_ARCHIVELOG_DETAILSRC_BACKUP_ARCHIVELOG_SUMMARYRC_BACKUP_CONTROLFILERC_BACKUP_CONTROLFILE_DETAILSRC_BACKUP_CONTROLFILE_SUMMARYRC_BACKUP_COPY_DETAILSRC_BACKUP_COPY_SUMMARYRC_BACKUP_CORRUPTIONRC_BACKUP_DATAFILERC_BACKUP_DATAFILE_DETAILSRC_BACKUP_DATAFILE_SUMMARYRC_BACKUP_FILESRC_BACKUP_PIECERC_BACKUP_PIECE_DETAILSRC_BACKUP_REDOLOGRC_BACKUP_SETRC_BACKUP_SET_DETAILSRC_BACKUP_SET_SUMMARYRC_BACKUP_SPFILERC_BACKUP_SPFILE_DETAILSRC_BACKUP_SPFILE_SUMMARYRC_CHECKPOINTRC_CONTROLFILE_COPYRC_COPY_CORRUPTIONRC_DATABASERC_DATABASE_BLOCK_CORRUPTIONRC_DATABASE_INCARNATIONRC_DATAFILERC_DATAFILE_COPYRC_LOG_HISTORYRC_OFFLINE_RANGERC_PROXY_ARCHIVEDLOGRC_PROXY_ARCHIVELOG_DETAILSRC_PROXY_ARCHIVELOG_SUMMARYRC_PROXY_CONTROLFILERC_PROXY_COPY_DETAILSRC_PROXY_COPY_SUMMARYRC_PROXY_DATAFILERC_REDO_LOGRC_REDO_THREADRC_RESTORE_POINTRC_RESYNCRC_RMAN_BACKUP_JOB_DETAILSRC_RMAN_BACKUP_SUBJOB_DETAILSRC_RMAN_BACKUP_TYPERC_RMAN_CONFIGURATIONRC_RMAN_OUTPUTRC_RMAN_STATUSRC_SITERC_STORED_SCRIPTRC_STORED_SCRIPT_LINERC_TABLESPACERC_TEMPFILERC_UNUSABLE_BACKUPFILE_DETAILS
See Also:
Oracle Database Backup and Recovery Reference for information about these views