The most commonly used database model in current database development is;
Correct answer: A. Relational
- A. Relational
- B. Hierarchical
- C. Network
- D. Relational Schema
Explanation
Correct answer is: Relational Relational database is a collection of data items organized as a set of formally described tables from which data can be accessed or reassembled in many ways.
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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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