add the solution of the teacher
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@ -70,7 +70,7 @@ use Abo;
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go
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go
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create view mitglied_aboart_v(AboArt, Anzahl)
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create view mitglied_aboart_v(AboArt, Anzahl)
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as select abo.abo_name, COUNT(abo.abo_id) AS MitgliederProAbo
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as select abo.abo_name, COUNT(*) Anzahl
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FROM mitglied
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FROM mitglied
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INNER JOIN abo ON mitglied.abo_id = abo.abo_id
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INNER JOIN abo ON mitglied.abo_id = abo.abo_id
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GROUP BY abo.abo_name;
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GROUP BY abo.abo_name;
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