Data in database at a particular point of time is called as?
Correct answer: B. Extension
- A. Intension
- B. Extension
- C. Back up
- D. Application
Explanation
An extension is the collection of records stored in a database at a particular time, also called the database state or instance. Intension refers to the database schema or structure.
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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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