Constraints in DBMS Multiple Choice Questions (MCQ) PDF - 168

MCQ 836: If only some entities in E participate in relationships in R, the participation of entity set E in relationship R is said to be

1. Total
2. Whole
3. Partial
4. Moment

MCQ 837: Any relation that is not part of the logical model, but is made visible to a user as a virtual relation, is called a

1. Domain
2. View
3. Structure
4. Absolute Product

MCQ 838: The data values stored in the database must satisfy some

1. Consistency Constraints
2. Integrity Constraints
3. Definition Constraints
4. Declaration Constraints

MCQ 839: Data Manipulation Language (DML) is basically of

1. 1 type
2. 2 types
3. 3 types
4. 4 types

MCQ 840: In an ER diagram, relationship sets are represented by a diamond connecting a pair of related

1. Pointers
2. Entity sets
3. Instances
4. Entries