Redundancy Can Be a Major Problem in the Design and Operation

question 49

Multiple Choice

Redundancy can be a major problem in the design and operation of relational databases.If a database uses only one relation to store data,several problems may subsequently occur.The problem of changes (or updates) to data values being incorrectly recorded is known as

• A)an update anomaly.
• B)an insert anomaly.
• C)a delete anomaly.
• D)a memory anomaly.

Comprehend the significance of tradespeople in Canada's workforce.

Recognize the financial outcomes of participating in apprenticeship programs.

Understand the role of mentoring and its impact on career progression.

Understand the role and principles of green chemistry in promoting sustainability.

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Definitions:

Compensatory Decision-making

A decision-making process where individuals make choices by weighing the pros and cons of different options to compensate for weaker attributes by stronger ones.

Functional Fixedness

A cognitive bias that limits a person to use an object only in the way it is traditionally used, ignoring other possible uses.

Noncompensatory Modeling

A decision-making process where options are evaluated based on whether they meet predetermined criteria, without considering trade-offs between characteristics.

Insight

A sudden understanding or realization of a problem's solution, often coming unexpectedly after a period of contemplation or seeming like a spontaneous revelation.