Oracle Forms Developer – Form Builder Reference, Volume 1

EXECUTE_TRIGGER built-in
Description
EXECUTE_TRIGGER executes an indicated trigger.
Syntax
PROCEDURE EXECUTE_TRIGGER
(trigger_name VARCHAR2);
Built-in Type restricted procedure (if the user-defined trigger calls any restricted built-in subprograms)
Enter Query Mode yes
Note: EXECUTE_TRIGGER is not the preferred method for executing a user-named trigger: writing a
user-named subprogram is the preferred method.
Parameters
trigger_name Specifies the name of a valid user-named trigger.
Usage Notes
Because you cannot specify scope for this built-in, Form Builder always looks for the trigger starting at
the lowest level, then working up.
To execute a built-in associated with a key, use the DO_KEY built-in instead of EXECUTE_TRIGGER.
For example, rather than:
Execute_trigger (’KEY-NEXT-ITEM’);
Use instead:
Do_Key(’NEXT_ITEM’);
EXECUTE_TRIGGER restrictions
Although you can use EXECUTE_TRIGGER to execute a built-in trigger as well as a user-named
trigger, this usage is not recommended, because the default fail behavior follows a different rule than
when invoked automatically by Form Builder as part of default processing. For example, in default
processing, if the When-Validate-Item trigger fails, it raises an exception and stops the processing of the
form. However, if the When-Validate-Item trigger fails when it is invoked by EXECUTE_TRIGGER,
that failure does not stop the processing of the form, but only sets Form_Failure to FALSE on return
from the EXECUTE_TRIGGER built-in.
EXECUTE_TRIGGER examples
/*
** Built-in: EXECUTE_TRIGGER
** Example: Execute a trigger dynamically from the PL/SQL
** code of a Menu item, depending on a menu
** checkbox.
*/
DECLARE
Cur_Setting VARCHAR2(5);
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