Suppose That You Need to Update One Value of the Column

question 50

Multiple Choice

Suppose that you need to update one value of the column SalesCost in a relation.The way the relation is constructed,this value actually needs to be changed in three different rows.However,you only change the value in two of the rows.You have just created a(n) ________.

• A)normalization anomaly
• B)insertion anomaly
• C)update anomaly
• D)deletion anomaly

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Definitions:

Protonema

A thread-like chain of cells that forms the earliest stage of a moss or fern life cycle, emerging from the spore and developing into the gametophyte.

Moss Spore

A reproductive unit capable of developing into a new moss plant, produced by mosses as a part of their life cycle.

Filament

A thin, thread-like structure, often part of a larger network, used in various biological and industrial contexts.

Sphagnum

A genus of mosses known for their role in creating peat bogs, which are significant ecosystems for carbon storage.