Use this statement to trigger a named event. The event may be defined for event triggers or be a scheduled event.
TRIGGER EVENT event-name [ ( parm = value, ... ) ]
parm = value When a triggering condition causes an event handler to execute, the database server can provide context information to the event handler using the event_parameter function. The TRIGGER EVENT statement allows you to explicitly supply these parameters, to simulate a context for the event handler.
Actions are tied to particular trigger conditions or schedules by a CREATE EVENT statement. You can use the TRIGGER EVENT statement to force the event handler to execute, even when the scheduled time or trigger condition has not occurred. TRIGGER EVENT does not execute disabled event handlers.
Each value is a string. The maximum length of each value is limited by the maximum page size specified by the -gp server option. If the length of value exceeds the page size, the string is truncated at the point at which the page is full.
Must have DBA authority.
SQL/2003 Vendor extension.
The following example shows how to pass a string parameter to an event. The event displays the time it was triggered on the database server messages window.
CREATE EVENT ev_PassedParameter HANDLER BEGIN MESSAGE 'ev_PassedParameter - was triggered at ' || event_parameter( 'time' ); END; TRIGGER EVENT ev_PassedParameter( "Time"=string( current timestamp ) );
|Discuss this page in DocCommentXchange.
Send feedback about this page using email.
|Copyright © 2009, iAnywhere Solutions, Inc. - SQL Anywhere 11.0.1|