Relational Query Languages MCQs with Answers PDF Download – Test 30

MCQ 146: The query language is a language in which a user:

1. Requests
2. Response
3. Stores
4. Represents

MCQ 147: The predicate of a selection statement may include comparisons between:

1. Two attributes
2. Multiple attributes
3. Two relations
4. Multiple relations

MCQ 148: The designer maps the high-level conceptual schema onto the implementation data model, at the level:

1. Contextual-design phase
2. Physical-design phase
3. Logical-design phase
4. Virtual-design phase

MCQ 149: In a database design, gathering the data needs of the prospective database users, comes at the stage?

1. First stage
2. Second stage
3. Third stage
4. Fourth stage

MCQ 150: Model that uses a collection of tables to represent data and the relationships among the data, is known as:

1. Relational model
2. View model
3. Logical model
4. Physical model