☆dba_ opening .....
Dba_users Database user Information
Dba_segments Table Segment Information
Dba_extents Data Area Information
Dba_objects Database object Information
Dba_tablespaces database table Space information
Dba_data_files Data File setup Information
Dba_temp_files Temporary data file information
Dba_rollback_segs Rollback Segment Information
Dba_ts_quotas User table Space quota information
Dba_free_space Database Free Space information
Dba_profiles Database User Resource limit information
Dba_sys_privs User's system permissions information
Dba_tab_privs the object permission information that the user has
DBA_COL_PRIVS user has Column object permission information
Dba_role_privs The role information that the user has
Dba_audit_trail Audit trail Record information
Dba_stmt_audit_opts Audit Setup Information
Dba_audit_object Object Audit Results information
Dba_audit_session Session Audit Results Information
Dba_indexes index information for user mode
☆user_ Opening
User_objects User Object Information
User_source all resource object information for a database user
User_segments User's Table segment information
User_tables User's Table object information
User_tab_columns User's Table column information
User_constraints object constraint information for a user
User_sys_privs System permissions information for the current user
User_tab_privs Object permission information for the current user
User_col_privs table column permission information for the current user
User_role_privs role permission information for the current user
User_indexes User's index information
Table column information for the User_ind_columns user's index
Table column information for the USER_CONS_COLUMNS user's constraints
User_clusters all cluster information for the user
User_clu_columns The content information contained in the user's cluster
User_cluster_hash_expressions Hash Cluster information
☆v$ Opening
V$database Database Information
V$datafile Data File Information
V$controlfile Control File Information
V$logfile Redo Log Information
V$instance DB Instance Information
V$log Log Group Information
V$loghist Log History information
V$SGA Database SGA Information
V$parameter Initialization of parameter information
V$process Database Server process information
V$bgprocess Database Background Process information
V$controlfile_record_section the information of each part of the control file
V$thread Thread Information
V$datafile_header information in the header of the data file
V$archived_log Archive Log Information
V$archive_dest setting information for archived logs
v$logmnr_contents DML DDL result information for archived log analysis
V$logmnr_dictionary dictionary file information for log analysis
V$logmnr_logs log list information for log analysis
V$tablespace Table Space Information
V$tempfile Temporary file information
I/O statistics for v$filestat data files
V$undostat Undo Data Information
V$rollname Online rollback segment Information
V$session Session Information
V$transaction Transaction information
V$rollstat Rollback Segment Statistics
V$pwfile_users Privileged User Information
V$sqlarea Resources and related information that have been accessed by SQL statements that are currently queried
V$sql basic information about the same as V$sqlarea
V$sysstat Database System State information
☆all_ Opening
All_users information for all users of the database
All_objects information about all objects in the database
All_def_audit_opts All default Audit setup Information
All_tables all Table Object information
All_indexes information for all database object indexes
☆session_ Opening
Role information for Session_roles sessions
Permissions information for Session_privs sessions
☆index_ Opening
Index_stats setting and storing information for indexes
☆ Pseudo-Table
Dual system pseudo-list information
Oracle DBA common Tables and views