DBMS-Enchanced Entity-Relationship (EER) Model

DBMS-Enchanced Entity-Relationship (EER) Model
11. Generalisation maximizes the differences between the entities by identifying the common features .
  • TRUE
  • FALSE
Show Answer
12. Total participation is also called an optional participation.
  • TRUE
  • FALSE
Show Answer
13. The participation constraint can be total jor partial.
  • TRUE
  • FALSE
Show Answer
14. The participation cosnstraint can be total or partial.
  • TRUE
  • FALSE
Show Answer
15. A participation constraint can be total or partial
  • TRUE
  • FALSE
Show Answer
16. A non-joint constraint is also called an overlapping constraint.
  • TRUE
  • FALSE
Show Answer
17. A partial articipation is also called a mandatory participation.
  • TRUE
  • FALSE
Show Answer
18. Disjoint constraint specifies the relationship between members of the subtypes and indites whether it is possible for a member of a supertype to be a member of one, or more than one, subtype.
  • TRUE
  • FALSE
Show Answer
19. The disjoint constraint is only applied when a supertype has one subtype.
  • TRUE
  • FALSE
Show Answer
20. A partial participation is represented using a single line between the supertype and the specialiasation/generalisation circle.
  • TRUE
  • FALSE
Show Answer
Database
Questions and Answers for Competitive Exams Various Entrance Test