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adatbOnline version

adatb

by Dominik Ádám
1

jegyeladasok Extract ( Year from Eladasok . datum ) AS ev , EXTRACT ( MONTH from Eladasok . datum ) AS honap , , SUM ( ) 'Kecskemét' FROM Eladasok JOIN Jegy ON Eladasok . datum = Jegy . datum AND Eladasok . hely = Jegy . hely AND Eladasok . terem = Jegy . terem GROUP BY ev , honap ;

2

Vonatjegyek , ( . ) FROM JOIN ON UlesSzama . jaratazonosito = Vonatjegy2 . jaratazonosito AND UlesOsztaly . ulesSzama = Vonatjegy2 . ulesSzama GROUP BY kocsiosztál y

3

Vonatjegyek SELECT , , ( * ) FROM Vonatjegy1 BY ( ) ;

4

INSERT EladottKonyvek EXTRAFT ( YEAR FROM Eladasok . idopont ) AS ev , EXTRACT ( MONTH FROM Eladasok . idopont ) AS honap , Eladasok . isbn , ( ) , ( * ) 'Bolt2' FROM Konyvek JOIN Eladasok ON Eladasok . isbn = konyvek . isbn GROUP BY isbn , ev , hona p

5

SELECT ( Jegyeladas , ( , ) ) AS result FROM Jegyeladasok j ;

6

SELECT ( Vonat , ( , ) ) AS result FROM Vonatok v ;

7

SELECT ( Vonat , ( ) AS jaratazonosito ) , ( , ) , ( , ) AS result FROM Vonatok v ;

8

SET SERVEROUTOUT ON
DECLARE
v_jaratazonosito Vonatok . jaratazonosito%TYPE
FUNCTION helyszamtotCsokkent ( p_jaratazonosito NUMBER , p_foglal NUMBER )
IS
v_helyekSzama NUMBER
BEGIN
SELECT szabadhelyekSzama INTO v_helyekSzama FROM Vonatok WHERE jaratazonosito = p_jaratazonosito ;
IF v_helyekSzama > = p_foglal THEN
UPDATE Vonatok SET szabadHelyekSzama = szabadHelyekSzama - foglal
WHERE jaratazonosito = p_jaratazonosito ;
RETURN TRUE ;
END IF ;
RETURN FALSE ;
EXCEPTION
WHEN THEN
DBMS_OUTPUT . PUT_LINE ( 'Nincs ilyen feltételenek megfelel ? rekord' ) ;
WHEN THEN
DBMS_OUTPUT . PUT_LINE ( 'Több rekordot adott vissza a lekérdezés' ) ;
WHEN OTHERS THEN
DBMS_OUTPUT . PUT_LINE ( 'Egyéb hiba történt' ) ;
END ;

9

SET SERVEROUTPUT ON
DECLARE
TYPE gyujtotipus IS TABLE OF ;
gyujto gyujtotipus ;
CURSOR kurzus IS SELCET jaratazonosito , COUNT ( * ) AS darab FROM Menetjegyek GROUP BY jaratazonosito ;
idx BINARY_INTEGER
BEGIN
OPNE kurzor
idx : = 1 ;
FOR rekord IN kurzor
LOOP
gyujto ( idx ) : = rekord . darab
idx : = idx + 1 ;
END LOOP

- - kiíratjuk a gy ? jt ? tábla elemeit
idx : =
LOOP
WHEN idx : =
DBMS_OUTPUT . PUT_LINE { idx | | ' : ' | | gyujto ( idx ) } ;
idx : = gyujto . { idx } ;
END LOOP
CLOSE kurzor
END ;

10

SET SERVEROUTOUT ON
DECLARE
v_havi_eladasok NUMBER ;
haviEladasok ( p_honap NUMBER )
IS
v_darabszam NUMBER ;
v_jegytipus jegyeladasok . jegytipus%TYPE ;
BEGIN
SELECT jegytipus , SUM ( ar ) INTO v_jegytipus , v_darabszam
FROM jegyeladasok WHERE honap = p_honap GROUP BY jegytipus
DBMS_OUTPUT . PUT_LINE ( p_honap | | 'hónapban' jegytipus | | ' - ' | | v_darabszam ) ;
v_darabszam ;
EXCEPTION
WHEN THEN

11

SET SERVEROUPUT ON
DECLARE
TYPE rekordTipus IS RECORD ( isbn Konyvek . isbn%TYPE , cím Konyvek . cim%TYPE , ar Konyvek . ar%TYPE , darabszam NUMBER ) ;
TYPE gyujtotipus IS TABLE OF rekord Tipus INDEX BY BINARY_INTEGER ;
gyujto gyutjotipus
CURSOR kurzor IS SELECT isbn , cim , ar COUNT ( * ) AS darabszam FROM Konyvek GROUP BY isbn ;
idx BINARY_INTEGER
BEGIN
OPEN kurzor
idx : = 1 ;

FETCH kurzor INTO gyujto ( idx )
EXIT WHEN
idx : = idx + 1 ;
LOOP
ClOSE kurzor
EN D

12

kedvezmenyesAR ( p_isbn VARCHAR2 , p_kedvezmeny NUMBER ) RETURN NUMBER IS
v_ar Konyvek . ar%TYPE
e_rosszErtek EXCEPTION
BEGIN
IF p_kedvezmeny < 0 p_kedvezmeny > 100 THEN
RAISE e_rosszErtek ;
END IF
EXCEPTION
WHEN NO_DATA_FOUND THEN
DBMS_OUTPUT . PUT_LINE ( 'Nincs ilyen feltételnek megfelel ? rekord' )
END kedvezmenyesA r

13

SELECT ( jegyeladas , ( , ) ) AS result FROM jegyeladasok j ;

14

SELECT ( Vonat , ( , ) ) AS result FROM Vonatok v ;

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