True/False
When a 1-1 relationship is converted into two foreign keys,if the relationship is optional for one of the entity types,the corresponding foreign key may be eliminated.
Correct Answer:
Verified
Correct Answer:
Verified
Q11: Primary keys for entity types:<br>A) Can be
Q12: In data modeling:<br>A) More than one alternative
Q13: Both SQL:1999 and the Relational Model directly
Q14: Design documentation:<br>A) Should explain subtle design decisions<br>B)
Q15: Converting an optional 1-M relationship into a
Q17: During narrative problem analysis you should look
Q18: Relationships often appear as _ connecting nouns
Q19: In converting a generalization hierarchy in an
Q20: Figuer: <img src="https://d2lvgg3v3hfg70.cloudfront.net/TB4814/.jpg" alt="Figuer: -Assuming
Q21: Figuer: <img src="https://d2lvgg3v3hfg70.cloudfront.net/TB4814/.jpg" alt="Figuer: -Assuming