16.20 - TDWMSetLimits - Teradata Vantage NewSQL Engine

Teradata Vantage™ Application Programming Reference

prodname
Teradata Database
Teradata Vantage NewSQL Engine
vrm_release
16.20
created_date
March 2019
category
Programming Reference
featnum
B035-1090-162K

Purpose

Updates the system query or system session throttle limits of a rule in the TDWM database.

Definition

REPLACE PROCEDURE TDWM.TDWMSetLimits
     (IN RuleSetId     INTEGER,
      IN RuleName      TD_ANYTYPE,
      IN TDWMLock      VARCHAR(1) CHARACTER SET LATIN,
      IN SessionLimit  INTEGER,
      IN QueryLimit    INTEGER,
      IN UtilityLimit  INTEGER
     )
               .
               .
               .
;

Input Parameters

Input Parameters Description
RuleSetId Rule set in which the rule is found.
RuleName Name of the rule specified.
TDWMLock Type of request performed on the TDWMLock table:
  • W = Wait for the TDMWLock
  • A = Abort if the TDWMLock table is locked
  • S = Perform the update without locking the TDWMLock table
The TDWM database places an exclusive lock on the TDWMLock table at startup.
SessionLimit Maximum number of concurrent sessions. NULL indicates that the field is not changed.
QueryLimit Maximum number of concurrent queries. NULL indicates that the field is not changed.
UtilityLimit Maximum number of concurrent utilities. NULL indicates that the field is not changed.

Example: Using TDWMSetLimits

CALL TDWM.TDWMSetLimits(1, 'throttle1', 'A', NULL, 10, NULL);