Converting an optional 1-M relationship into a table results in easier query formulation and faster query execution.
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Q3: Design errors are more difficult to detect
Q4: Whenever an entity can exist in multiple
Q5: Identification dependency is required to transform a
Q6: One common refinement to an initial ERD
Q7: Both SQL:1999 and the Relational Model directly
Q9: In converting a generalization hierarchy in an
Q10: When converting a narrative problem into an
Q11: Primary keys for entity types:
A) Can be
Q12: When adding historical details to a relationship,typically
Q13: One of the benefits of transforming an
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