Identification dependency is required to transform a single entity type into two entity types and a relationship.
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Q1: When an optional 1-M relationship is converted
Q2: To avoid null values in foreign keys,an
Q3: Design errors are more difficult to detect
Q4: Whenever an entity can exist in multiple
Q6: One common refinement to an initial ERD
Q7: Both SQL:1999 and the Relational Model directly
Q8: Converting an optional 1-M relationship into a
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
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