Title: RE: User-defined functions in WHEN clause of a trigger
Rich,
Remove the when clause from trigger definition and put it inside.
CREATE OR REPLACE TRIGGER my_trigger
BEFORE UPDATE ON my_table
FOR EACH ROW
BEGIN
If my_function = some_value then
do_something_meaningful;
end if;
end
Not sure but got a feeling that it has something to do with the Purity
Level of the function. Something you declare with PRAGMA RESTRICT_REFERENCES
For a function to be usable in the DMLs, it needs to satisfy a few purity
rules, which also need to be explicitly declared using PRAGMA
From the docs:
Restrictions:You can specify a trigger restriction only
for a row trigger. Oracle evaluates this condition for each row affected by the
triggering statement.You cannot specify trigger restrictions for INSTEAD
OF trigger statements.You can reference object columns or their
OK, I need to make another bookmark...I got distracted by the Conditions
link in the text just above the text you quoted.
Thanks, Waleed! Not the answer I wanted, but it is the correct answer...
:)
Rich Jesse System/Database Administrator
[EMAIL PROTECTED]
