| triggers [message #38931] |
Tue, 28 May 2002 20:51  |
Australia
Messages: 4
Registered: May 2002
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Junior Member |
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pseudocode for trigger:
trigger name:bfr_all_people_stmnt_tgr
event: insert, delete or update on people
timing and type: before statement
action:
if the day is not a working day ie monday to friday, then raise error -20020
else if the time is between 1:00am and 1:30am (inclusive) then
raise error -20020
end if
----------
/*my trigger*/CREATE or replace TRIGGER bfr_all_people_stmnt_tgr
before insert or delete or update on people
DECLARE
day_num number; /*days of the week.*/
day_time number; /*time of day.*/
BEGIN
day_num = to_number (to.char(sysdate,'d'));
day_time = to_number (to.char(sysdate, 'HH:MI:SS'));
IF(day_num = 1) or (day_num = 7)) then
raise_application_error
(-20020, 'Not permitted at this time');
ELSIF((day_time >= 01:00:00) && (day_time <= 01:30:00)) then
raise_application_error
(-20020, 'Not permitted at this time');
END IF;
END;
/*can you please tell me if this is right, becasue i was unsure as how to do the between times 1:00am and 1:30am. I dont think this is right, so can someone please tell me how exactly its done? thanx */
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| Re: triggers [message #38935 is a reply to message #38931] |
Tue, 28 May 2002 22:16  |
Todd Barry
Messages: 4819
Registered: August 2001
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Senior Member |
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create or replace trigger bfr_all_people_stmnt_tgr
before insert or delete or update on people
begin
if to_char(sysdate, 'd') in ('1', '7') then
raise_application_error(-20020, 'Not permitted at this time');
elsif to_char(sysdate, 'hh24:mi:ss') between '01:00:00' and '01:30:00' then
raise_application_error(-20020, 'Not permitted at this time');
end if;
end;
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