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Andreas Bachmann
Dbs1 Coder Working Space
Commits
b9d37751
Commit
b9d37751
authored
1 year ago
by
Andreas Bachmann
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Fertig mit Testat 3
parent
5d577196
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Testat2/5_queries.sql
+8
-6
8 additions, 6 deletions
Testat2/5_queries.sql
with
8 additions
and
6 deletions
Testat2/5_queries.sql
+
8
−
6
View file @
b9d37751
...
...
@@ -8,10 +8,10 @@ SELECT DISTINCT ort, name FROM wettkampf ORDER BY ort ASC;
--------------------------------
-- 1.2 JOIN über mehrere Tabellen
SELECT
m
.
name
,
m
.
mail
,
k
.
spezialgebiet
,
a
.
typ
,
a
.
tournier
FROM
mitglied
AS
m
,
kampfrichter
AS
k
,
anmeldung
AS
a
WHERE
a
.
person
=
m
.
id
AND
k
.
id
=
m
.
id
AND
a
.
typ
=
2
;
FROM
mitglied
AS
m
JOIN
anmeldung
AS
a
ON
a
.
person
=
m
.
id
JOIN
kampfrichter
AS
k
ON
k
.
id
=
m
.
id
WHERE
a
.
typ
=
2
;
--------------------------------
-- 1.3 Query mit unterabfrage inkl. Angabe ob diese korreliert ist oder unkorreliert
SELECT
name
FROM
wettkampf
AS
w
...
...
@@ -70,14 +70,16 @@ LEFT JOIN anmeldung as a1 ON w1.id = a1.person
LEFT
JOIN
wettkampf
as
w2
ON
a1
.
tournier
=
w2
.
id
LEFT
JOIN
mitglied
as
m1
ON
m1
.
id
=
a1
.
person
ORDER
BY
name
;
SELECT
*
FROM
wettkampf1
;
--------------------------------
-- 3.2 updatable view (Sabi)
-- view schreiben
-- Änderung eines bestimmten Datensetzt über diese View schreiben mittels Update
-- View soll alle Mitglieder anzeigen und deren Mailadressen
CREATE
VIEW
M
itglieder
AS
CREATE
VIEW
m
itglieder
_view
AS
SELECT
name
,
mail
FROM
mitglied
;
-- Ariane Barnes nach Heirat Namensänderung
UPDATE
M
itglieder
SET
name
=
'Ariane Kuraiame'
UPDATE
m
itglieder
_view
SET
name
=
'Ariane Kuraiame'
WHERE
name
=
'Ariane Barnes'
;
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