Which one of following is an advantage of database management approach?
Correct answer: A. programs are independent of data format
- A. programs are independent of data format
- B. reduces security and the control of data
- C. increased duplication of data
- D. all of the above
Explanation
It means that while using a database management system we can add data of any data type here.Following are the basic advantages of DBMS such as Data Sharing, Data Independence, Support complex Data Relationships, Data Security and Database Backup and Recovery. The following are objectives of DBMS, such as, Shareability, availability, Evolvability and integrity.
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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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