Using the normalized relation notation, an attribute of a relation which is the primary key of another relation is indicated by:
A) an underline.
B) a circle.
C) a dashed underline.
D) italics.
E) a double-lined ellipse.
C
Explanation: C) This indicates to the designer that the attribute will uniquely identify an entity instance (row).
CL
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A) focus group method B) exploratory method C) survey method D) sampling method E) motivation elicitation technique
Whitelight sells its toothpastes in many convenience stores across the country. This is an example of ________ distribution
A) exclusive B) selective C) hybrid D) intensive E) normal
Answer the following statements true (T) or false (F)
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Indicate whether the statement is true or false