In a Relational Data Model, which of the following options describe how the…
2018
In a Relational Data Model, which of the following options describe how the data can be manipulated for querying?
- A.
Objects
- B.
Constraints
- C.
Entities
- D.
Operations
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Correct answer: D
The correct option is D. A data model consists of three core components: structural part, integrity constraints, and a manipulative part. Operations (such as relational algebra select, project, or join) specifically describe the actions allowed to manipulate, update, and query the data within the relational database structure.