ISYS DAY 2

ISYS DAY 2 - Chapters 6 & 7 o Quiz: Which item...

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Unformatted text preview: Chapters 6 & 7 o Quiz: Which item represents an accuracy problem? 42x-1029 (there is a typographical error) Which represents a completeness problem? 801-442-391 Which item above represents a consistency problem? Frank & Linda Linda (it's where the names are listed together, and then by themselves) Which item represents an uniqueness problem Peggy Morrill (her name is in their twice) Why do relational database use primary keys and foreign keys? To create logical relationships (this is how you link sets of tables together. ER diagrams are Entity Related Diagrams) What is one of the biggest pitfalls associated with real-time information? I t continually changes. (2 seconds from now it's not up to date from now) Which of the following is correct in reference to a database? A database can support many logical views Which of the following is not t rue about information redundancy?...
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ISYS DAY 2 - Chapters 6 & 7 o Quiz: Which item...

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