Which type of relational integrity is violated if a primary key in a database has a null value?
A) Entity integrity
B) Domain integrity
C) Domain constraints
D) Referential integrity
Correct Answer:
Verified
Q24: Consider the table shown in the exhibit.
Q25: Which of the following definitions best describes
Q26: Which subset of Structured Query Language (SQL)
Q27: Consider the Employee relation shown in the
Q28: Consider the following DBDL description of an
Q30: Consider the Registration relation shown in the
Q31: Consider the entity-relationship (ER) diagram shown in
Q32: The exhibit shows a table called Activity
Q33: A large enterprise uses a two-tier database
Q34: Which area of database security involves maintaining
Unlock this Answer For Free Now!
View this answer and more for free by performing one of the following actions
Scan the QR code to install the App and get 2 free unlocks
Unlock quizzes for free by uploading documents