This view was introduced in Oracle 11.1 primarily to support the ADR which was introduced in the same release.
The view reports the values for various parameters associated with the diagnostic framework.
In Oracle 12.1.0.2 V$DIAG_INFO has the following columns:
| Name | Data Type |
| INST_ID | NUMBER |
| NAME | VARCHAR2(64) |
| VALUE | VARCHAR2(512) |
| CON_ID | NUMBER |
In Oracle 12.1.0.2 V$DIAG_INFO reports values for the following parameters:
| Diag Enabled |
| ADR Base |
| ADR Home |
| Diag Trace |
| Diag Alert |
| Diag Incident |
| Diag Cdump |
| Health Monitor |
| Default Trace File |
| Active Problem Count |
| Active Incident Count |
The Default Trace File parameter reports the pathname of the trace file for the current session. For example:
SELECT value FROM v$diag_info WHERE name = 'Default Trace File'; VALUE -------------------------------------------------------------------------------- /u01/app/oracle/diag/rdbms/test/TEST/trace/TEST_ora_2260.trc
The above query is useful for users that do not have SYSDBA privileges as they cannot use ORADEBUG TRACEFILE_NAME.