Database Systems Practice Test 193

Constraints in DBMS Quiz Questions and Answers PDF - 193

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Constraints in DBMS Questions and Answers PDF Download: Quiz 193

MCQ 961: When an entity in set A is associated with at most one entity of set B, the cardinality is of type

A) Many-to-many

B) One-to-many

C) One-to-one

D) Many-to-one

MCQ 962: Time values can be specified as

A) time "09:30:00"

B) time "09:30:00"

C) time "09.30.00"

D) time "09|30|00"

MCQ 963: In insert and delete, a nested select within an update statement may refer the relation that is being

A) Inserted

B) Deleted

C) Updated

D) Retrieved

MCQ 964: The language that is widely used to represent semi structured data, is

A) JAVA

B) C#

C) C++

D) XML

MCQ 965: SQL allows a default value to be specified for an

A) Instance

B) Tuple

C) Relation

D) Attribute

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