var sidebar_align = 'right';
var content_container_margin = parseInt('290px');
var sidebar_width = parseInt('270px');
hello, can someone help me...
i have a table called ' book' with the following columns
I have been trying to create a trigger so that no row within this table can be deleted if the start_date is equal to or less than the current date. I tried this:
CREATE or REPLACE TRIGGER triggerC
BEFORE DELETE on book_hire
for each row
where start_date > sysdate
but this jus doesnt allow any deletion of rows from the table. any ideas?