Coalesce with Cursor in a form?

Question

Hi everyone,
I have a problem when i try to use a coalesce method inside a cursor with a 11g form.
my select liook like this
SELECT c.sendingdate,
c.no_evenment,
coalesce((select no_action from action_type where no_action = c.no_action), c.no_action) no_action,
i don't put the rest of the select, but when i compile the PL/SQL, i got error with the "," inside the coalesce coalesce((select no_action from action_type where no_action = c.no_action) _,_ c.no_action) no_action
but this sql works in pl/sql developer
and works on other form without cursor.
thanks for your help.

Answer 1

Neimad wrote:
DBMS text query execution.I don't know what that means or is, probably Dynamic SQL?!?
Anyway; coalesce doesn't seem to be the problem, your correlated subquery however is:
select coalesce(1,2)
into dummy
from dual;works whereas
select coalesce(1,2), coalesce((select 1 from dual), 2)
into dummy
from dual;does not compile.
reason and solution is the same as already stated: the forms PL/SQL engine simply doesn't know correlated subquerys, and if you use a view you will be able to use a correlated subquery. Or you simply could rewrite your query to not use correlated subqueries.
cheers