DATABASE FUNDAMENTALS
WHAT IS DATABASE MANAGEMENT
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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Promotes self-documentation
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descriptive of the objects in the business environment
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descriptive of the data represented by the attribute
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Facilitates communication between parties
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Detailed explanation-1: -A descriptive attribute is functionally determined by a dimensional attribute of a hierarchy and specifies a property of this attribute. Descriptive attributes are always “leaves” of hierarchies.
Detailed explanation-2: -There are data quality characteristics of which you should be aware. There are five traits that you’ll find within data quality: accuracy, completeness, reliability, relevance, and timeliness – read on to learn more.
Detailed explanation-3: -They have the data attributes of base (BINARY or DECIMAL), scale (FLOAT or FIXED), precision (significant digits and decimal-point placement), and mode (REAL or COMPLEX). Numeric character data is numeric data that is held in character form.
Detailed explanation-4: -Attributes are the properties of entities. Attributes are represented by means of ellipses. Every ellipse represents one attribute and is directly connected to its entity (rectangle). If the attributes are composite, they are further divided in a tree like structure.