adplus-dvertising
frame-decoration

Question

When the values in one or more attributes being used as a foreign key must exist in another set of one or more attributes in another table, we have created a(n):

a.

transitive dependency.

b.

insertion anomaly.

c.

referential integrity constraint.

d.

normal form.

Posted under DBMS

Answer: (c).referential integrity constraint.

Engage with the Community - Add Your Comment

Confused About the Answer? Ask for Details Here.

Know the Explanation? Add it Here.

Q. When the values in one or more attributes being used as a foreign key must exist in another set of one or more attributes in another table, we have created a(n):

Similar Questions

Discover Related MCQs

Q. A functional dependency is a relationship between or among:

Q. For some relations, changing the data can have undesirable consequences called:

Q. A relation in this form is free of all modification anomalies.

Q. If attributes A and B determine attribute C, then it is also true that:

Q. If attribute A determines both attributes B and C, then it is also true that:

Q. One solution to the multivalued dependency constraint problem is to:

Q. A function that has no partial functional dependencies is in _______ form :

Q. 4NF is designed to cope with :

Q. 5NF is designed to cope with :

Q. A BCNF is :

Q. Every Boyee-Codd normal form is in

Q. Needing to using more complicated SQL in database applications is a(n) ________ of normalization.

Q. Eliminating modification anomalies is a(n) ________ of normalization.

Q. Multivalued dependencies should ________ be eliminated.

Q. When assessing the table structure of an acquired set of tables with data, accessing the validity of possible referential integrity constraints on foreign keys is (part of) the:

Q. When assessing the table structure of an acquired set of tables with data, determining foreign keys is (part of) the:

Q. Creating a read-only database is a task that is ________ assigned to beginning database professionals.

Q. Each answer below shows example data from a table. Which answer is an example of the general-purpose remarks column problem?

Q. For a number of reasons, normalizations is not often an advantage for a(n) ________ database.

Q. Most of the time, modification anomalies are serious enough that tables should be normalized into: