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(Sügis 2026) Andmebaasid / Andmebaaside alused (ICM0005/ICA0005)

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Miks ei tohiks alternatiivvõti (AK - alternate key) sisaldada primaarvõtme (PK - Primary Key) välju?
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Mis juhtub anomaaliatega 1NF saavutamisel?
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Mis järgmistest väidetest iseloomustavad tingimuslikult eksisteerivat andmegruppi (denormaliseerimine)?
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Miks kasutada versioonitud objektidel grupi identifikaatorit?
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Mida tähendab suhte projitseerumine?
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Millal on andmemudel neljandas normaalkujus?
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Mida võib põhjustada primaarvõtme uuendamine 3NF puhul?
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Miks kasutatakse liit-atribuutide loomist?
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Milline tunnus iseloomustab normaliseerimata andmemudelit?
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Miks tekitab jaotatud võti 1NF-is anomaaliaid?
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