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db getext

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Martin Thoma 2013-07-27 17:14:28 +02:00
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commit fe6543ad0b
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documents/musterloesung-db-klausur-a/d3b.sql Normal file
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CREATE VIEW AlwaysParticipating AS (
SELECT player_id, name
FROM Player
JOIN Participation ON Player.player_id = Participation.player_id
HAVING SUM(Participation.cup_id) =
(
SELECT SUM(cup_id)
FROM cup_id
)
)