sgd-praktikum/SQL/PLSQL.sql

98 lines
2.7 KiB
MySQL

CREATE OR REPLACE FUNCTION mostValuableClerk(months IN NUMBER) RETURN NUMBER
IS
startMonat DATE;
finalclerkid NUMBER;
maxanzahlcleanings NUMBER;
BEGIN
startMonat := ADD_MONTHS(SYSDATE,-months);
SELECT CLERKID, Anzahl INTO finalclerkid, maxanzahlcleanings FROM
(
SELECT DISTINCT CLERKID, COUNT(CLERKID) AS Anzahl
From
(
SELECT clcl.CLERKID
FROM CLEANINGCLERK clcl
INNER JOIN CLEANINGPLAN clpl ON clcl.CLEANINGPLANID = clpl.CLEANINGPLANID
WHERE clpl."date" >= startMonat
)
GROUP BY CLERKID ORDER BY Anzahl desc
)
WHERE ROWNUM <= 1;
return finalclerkid;
END;
CREATE OR REPLACE PROCEDURE getLastBookings(months IN NUMBER)
IS
CURSOR bookingsCursor IS SELECT BOOKINGID FROM BOOKING WHERE ARRIVALDATE >= ADD_MONTHS(SYSDATE,-months);
BEGIN
FOR booking IN bookingsCursor
LOOP
DBMS_OUTPUT.PUT_LINE(booking.BOOKINGID);
END LOOP;
END;
CREATE OR REPLACE PROCEDURE rooms(clientz IN NUMBER, months IN NUMBER)
IS
CURSOR roomCursor is
SELECT br.ROOMNUMBER
FROM BOOKINGROOM br INNER JOIN (
SELECT *
FROM BOOKING INNER JOIN CLIENT
ON BOOKING.CLIENTID = CLIENT.PERSONID
WHERE CLIENT.PERSONID = clientz AND BOOKING.ARRIVALDATE >= add_months(sysdate, -months)
) bookings ON br.BOOKINGID = bookings.BOOKINGID;
BEGIN
FOR number IN roomCursor
LOOP
DBMS_OUTPUT.PUT_LINE(number.ROOMNUMBER);
END LOOP;
END rooms;
CREATE OR REPLACE TRIGGER booking_created
BEFORE INSERT OR UPDATE
ON BOOKINGROOM
FOR EACH ROW
DECLARE
cleaningDate DATE;
BEGIN
SELECT arrivalDate INTO cleaningDate FROM BOOKING
WHERE BOOKING.BOOKINGID = :NEW.bookingId;
cleaningDate := cleaningDate - 1;
INSERT INTO CLEANINGPLAN VALUES (cleaningplan_seq.nextval, cleaningDate, 90, :NEW.roomNumber);
END;
CREATE OR REPLACE TRIGGER cleaning_while_booked
BEFORE INSERT OR UPDATE
ON CleaningPlan
FOR EACH ROW
DECLARE
bookingcount NUMBER;
BEGIN
SELECT COUNT(bk.bookingId) INTO bookingcount
FROM Booking bk INNER JOIN BookingRoom br ON bk.bookingId = br.bookingId
WHERE br.roomNumber = :NEW.roomNUMBER AND bk.arrivalDate <= :NEW."date" AND bk.departureDate >= :NEW."date";
IF bookingcount > 0 THEN
RAISE_APPLICATION_ERROR(-20111, 'CleaningPlan liegt in gebuchtem Zeitraum');
END IF;
END;
CREATE OR REPLACE TRIGGER total_price
AFTER INSERT OR UPDATE ON BOOKING
FOR EACH ROW
DECLARE
total_price NUMBER;
nights NUMBER;
BEGIN
nights := :NEW.DEPARTUREDATE - :NEW.ARRIVALDATE;
total_price := nights * :NEW.COST;
dbms_output.put_line('Gesamtpreis:');
dbms_output.put_line(total_price);
END;