This section discusses views that contain useful diagnostic information
| Dynamic Performance Views |
| V$DIAG_INFO |
| V$PARAMETER |
| V$PARAMETER_VALID_VALUES |
| V$SQL_FEATURE |
| V$SQL_FEATURE_DEPENDENCY |
| V$SQL_FEATURE_HIERARCHY |
| V$SQL_HINT |
| Data Dictionary Views |
| DBA_HIST_PLAN_OPERATION_NAME |
| DBA_HIST_PLAN_OPTION_NAME |
| DBA_HIST_TOPLEVELCALL_NAME |