• HOME
  • QUIZ
  • CONTACT US
EXAMIANS
  • COMPUTER
  • CURRENT AFFAIRS
  • ENGINEERING
    • Chemical Engineering
    • Civil Engineering
    • Computer Engineering
    • Electrical Engineering
    • Mechanical Engineering
  • ENGLISH GRAMMAR
  • GK
  • GUJARATI MCQ

Data Models into Database Designs

Data Models into Database Designs
For every relationship, there are six possible sets of minimum cardinalities.

False
True

ANSWER DOWNLOAD EXAMIANS APP

Data Models into Database Designs
A foreign key is used to implement relationships between tables.

False
True

ANSWER DOWNLOAD EXAMIANS APP

Data Models into Database Designs
Which of the following situation requires the use of ID-dependent entities?

Association relationships only
All of these
Multivalued attributes only
Archetype/instance relationships only

ANSWER DOWNLOAD EXAMIANS APP

Data Models into Database Designs
If a relationship has a cascade updates constraint, then if ________ in the parent table is changed, then the same change will automatically be made to any corresponding foreign key value.

a surrogate key
a foreign key
the primary key
any alternate key

ANSWER DOWNLOAD EXAMIANS APP

Data Models into Database Designs
A foreign key is:

used to define data types.
All of these
used to define null status.
a column containing the primary key of another table.

ANSWER DOWNLOAD EXAMIANS APP

Data Models into Database Designs
Which is not true about surrogate keys?

They are numeric.
They are fixed.
They have meaning to the user.
They are short.

ANSWER DOWNLOAD EXAMIANS APP
MORE MCQ ON Data Models into Database Designs

DOWNLOAD APP

  • APPLE
    from app store
  • ANDROID
    from play store

SEARCH

LOGIN HERE


  • GOOGLE

FIND US

  • 1.70K
    FOLLOW US
  • EXAMIANSSTUDY FOR YOUR DREAMS.
  • SUPPORT :SUPPORT EMAIL ACCOUNT : examians@yahoo.com

OTHER WEBSITES

  • GUJARATI MCQ
  • ACCOUNTIANS

QUICK LINKS

  • HOME
  • QUIZ
  • PRIVACY POLICY
  • DISCLAIMER
  • TERMS & CONDITIONS
  • CONTACT US
↑