functional dependencies a generalization of
Correct answer: B. Relation dependencies
- A. Key dependencies
- B. Relation dependencies
- C. View
- D. Database dependencies
Explanation
Relation dependencies is the correct answer. Functional dependencies are a fundamental concept in relational database theory. They define constraints between attributes in a relation (table) to ensure data integrity and minimize redundancy. Relation dependencies are a broader category that encompasses functional dependencies and other types of dependencies that can exist between attributes in a relation
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Databases cover tables, records, fields, keys and relationships, together with database management systems and relational database design. The subject includes primary and foreign keys, normalization, SQL commands such as SELECT, INSERT, UPDATE and DELETE, queries, forms and reports, while distinguishing a database from a spreadsheet used for simple tabular data.
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