Loop

Hi,

I have a loop of the form:

FOR rec IN SELECT code FROM staff WHERE shiftgroup = NEW.groupe ORDER
BY code LOOP
WHILE sdate <= NEW.todate LOOP
SELECT INTO starty,endy,nday resumetime,closetime,nextday FROM
shifts WHERE shift = NEW.shift;
restime := sdate + starty;

IF nday = true THEN
clstime := sdate + interval '1 day' + endy;
ELSE
clstime := sdate + endy;
END IF;

INSERT INTO shiftsexp(id,staff,resumetime,closetime)
VALUES(NEW.id,rec.code,restime,clstime);
sdate := sdate + interval '1 day';
END LOOP;
END LOOP;

Surprisingly, the outer loop (For .. Loop) does not loop while only
the WHILE ... Loop works.

Any hint would be appreciated.

Regards,
Chris.