Delete multiple record in tabular with check box.

Question

Hello guys,
I need your suggestion..
I have master detail block. (INSTRUCTOR and SECTION)
At detail block, I add check box item (name: RB_SECTION_ID) with Database Item "No", and value when check :SECTION_ID (on the property).
I make a button DELETE. The trigger was DELETE from SECTION where section_id = :SECTION.RB_SECTION_ID and
instructor_id = :INTRUCTOR.INSTRUCTOR_ID;
but It not work.
How we delete multiple record by check multiple check box then click DELETE button..??
Regard.
Nia..

Answer 1

You datablock in the form cannot automaticaly refresh the changes you make with the SQL statements.
For that you need to explicity call certain built-ins to refresh the data
execute_query(no_validate) --> fetches the available data for that session. Here you deleted some records, so those records will not be available until you do a rollback in the same session(i.e, you exit the form without saving). But until you save, those deleted records will be avaiable for the users in other sessions)
Also, your code works only because the records you deleted are all already saved ones.
So it will be a good practice to use built-in of form builder rather than DML stmt.s
Here you can do like this
begin
go_block('TRY_TABLE');
first_record;
loop
if :TRY_TABLE.CCKBOX = 'Y' THEN
delete_record;
END IF;
NEXT_RECORD;
EXIT WHEN :SYSTEM.LAST_RECORD = 'TRUE';
END LOOP;
END;
If your code is like above one, you can revert your deletion by simply giving a F7 (enter-query) and F8 (xecute query).