PrioritizePreparedCollect Stored Procedure | Teradata Vantage - 17.10 - PrioritizePreparedCollect - Advanced SQL Engine - Teradata Database

Teradata Vantageā„¢ - Application Programming Reference

Advanced SQL Engine
Teradata Database
Release Number
Release Date
July 2021
Content Type
Programming Reference
Publication ID
English (United States)

Changes the submission order of an individual collection within a prepared commands list.


REPLACE PROCEDURE TDSTATS.PrioritizePreparedCollect (
  IN RequestID    BIGINT,
  IN Priority     INTEGER
  OUT NumUpdated  INTEGER

Syntax Elements

TDSTATS database unique ID for an individual prepared collection.
This input parameter cannot be NULL.
Changed priority of the specified collection expressed as a relative rank among other collections in the commands list containing RequestID.
This input parameter cannot be NULL.
Possible values:
  • 1 means the operation was successful.
  • 0 means the operation failed.

Usage Notes

You can call the SelectPreparedCollects external stored procedure to determine the priority of other collections in the same commands list.

The modified priority is only relevant to the commands list containing the specified collection as identified by RequestID. Future invocations of PrepCollect will not incorporate the modified priority.

If two or more collections have the same priority within a commands list, the submission order among them is undefined.

Example: Using PrioritizePreparedCollect

The following example shows how to change the priority of pending collection number from 12 to 1 (that is, one being the highest priority).

CALL TDSTATS.PrioritizePreparedCollect(12, 1, NumUpdated);
*** Procedure has been executed.
*** Total elapsed time was 1 second.

Related Information

For more information on ... See ...
the priority of other collections in the commands list SelectPreparedCollects.
preparing a prioritize list of COLLECT STATISTICS statements PrepCollect.