Gegeben sei die Relation actual_trip ( scheduled_trip, day ). Folgendes ist eine...
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Gegeben sei die Relation actual_trip (scheduled_trip, day). Folgendes ist eine gültige vertikale Fragmentierung.
actual_trip_1 = SELECT scheduled_trip FROM actual_trip;actual_trip_2 = SELECT day FROM actual_trip;
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Given the relation actual_trip (scheduled_trip, day), the following is a valid vertical fragmentation.
actual_trip_1 = SELECT scheduled_trip FROM actual_trip;actual_trip_2 = SELECT day FROM actual_trip;
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