A circle with a vertical line represents the ________ cardinality symbol.
A) mandatory many
B) mandatory single
C) optional many
D) optional single
Correct Answer:
Verified
Q59: _ is an intellectual asset.
A) Data
B) Information
C)
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Q61: A vertical line with a "chicken leg"
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Q63: _ is the most popular query language
Q65: Which of the following technologies was NOT
Q66: Normalization is a method for analyzing and
Q67: Two vertical lines represent the _ cardinality
Q68: A circle with a "chicken leg" to
Q69: A _ relationship exists when three entities
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