Returns the SQL text of the request currently being executed for the specified host, session, and vproc.
Syntax
REPLACE FUNCTION SYSLIB.MonitorSQLText ( HostIdIn SMALLINT, SessionNoIn INTEGER, RunVprocNo SMALLINT ) RETURNS TABLE ( HostId SMALLINT, SessionNo INTEGER, SeqNum SMALLINT, SQLTxt VARCHAR(31000) CHARACTER SET UNICODE ) ... ;
Syntax Elements
- HostIdIn
- Logical ID of a host (or client) with sessions logged on.
- SessionNoIn
- Session number of the SQL to monitor.
- RunVprocNo
- PE vproc number where the session runs.
- HostId
- Host ID of the SQLtext.
- SessionNo
- Session number of the SQLtext.
- SeqNum
- Sequence number of the row. For example, if the SQL text exceeds 31,000 bytes, the system will return multiple rows.
- SQLTxt
- SQL text of the running request.
Usage Notes
This table function is only supported in Constant Mode.
If MONITOR SQL processing is not completed within the timeout interval, then an error is returned to the client application. When a MONITOR SQL request is timed out, the processing continues internally to its completion. If the client application submits a new MONITOR SQL request for the same timed out target session while the previous timed out one is still being processed, then an error is returned. The timeout interval can be set in the DBS Control field, PMPC_TimeoutSecs. The default timeout interval is 60 seconds. If the PMPC_TimeoutSecs field is set to zero, the MONITOR SQL timeout request will be disabled and no timeout will occur. For more information on the PMPC_TimeoutSecs field, see Teradata Vantage™ - Database Utilities, B035-1102.
The MonitorSQLText function provides similar functionality to the PMPC MONITOR SQL request. For information about this interface, see MONITOR SQL.
Example: Using MonitorSQLText
SELECT SQLTxt FROM TABLE (MonitorSQLText(1, 1001, 16383)) AS t2;
Result:
*** Query completed. One row found. One column returned. *** Total elapsed time was 58 seconds. SQLTxt ------------------------------------------------------------------------ select a11.c1, a12.c1, a13.c1, a21.c1, a22.c1, a23.c1 from dbaaa.skewAmp1 a11, dbaaa.skewAmp1 a12, dbaaa.skewAmp1 a13, dbaaa.skewAmp1 a21, dbaaa.sk ewAmp1 a22, dbaaa.skewAmp1 a23;