12th Class Computer Science MCQS Chapter 4

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12th Class Computer Science MCQS


In relational database, table is also called:
File
Relation
Table
Schema

In 3NF, a non-key attribute must not depend on a :
Non-key attribute
Composite key
Sort key
Key attribute

Which of the following anomalies result from a transitive dependency ?
Insertion
Deletion
All
Modification

A rule that states each foreign key value must match a primary key value in the other relation is called:
Key match rule
Entity key group rule
Foreign/ primary match rule
Referential integrity constraints

Which is a possible value of flag?
+
All of these
Space

Which of the following is a decision making statement
all
break
getch ( )
if

A functional dependency between two or more non-key attributes is called:
Transitive dependency
Partial functional dependency
Partial non-key dependency
None

Which form of dependency is removed in 2NF?
Associative
Transitive
Functional
Partial

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