Database Management System Practice Test 46

Relational Model Constraints MCQ (Multiple Choice Questions) PDF - 46

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Relational Model Constraints Questions and Answers PDF Download: Quiz 46

MCQ 226: The type of constraint in which value of each attribute (X) must be an indivisible value from domain (X) is classified as

A) explicit constraint

B) implicit constraint

C) domain constraint

D) range constraint

MCQ 227: The expression used in relational calculus to specify request of retrieval is classified as

A) declarative expression

B) procedural expression

C) structural expression

D) functional expression

MCQ 228: In two-tier client ⁄ server architecture, the running of application programs and the user interface programs is in control of

A) modulation side

B) client side

C) server side

D) host side

MCQ 229: The weak entities are represented in UML diagrams by using aggregations called

A) qualified segregation

B) non-qualified segregation

C) non-qualified aggregation

D) qualified aggregation

MCQ 230: The compatibility condition which states that the relations for union and intersection operations must consist of same type of tuples is classified as

A) union compatibility

B) intersect compatibility

C) row compatibility

D) column compatibility

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