What is DBMS?Explain any 3 features?
A commonly used views of data approach is the three-level architecture suggested by ANSI/SPARC (American National Standards Institute/Standards Planning and Requirements Committee). ANSI/SPARC produced an interim report in 1972 followed by a final report in 1977. The reports proposed an architectural framework for databases. Under this approach, a database is considered as containing data about an enterprise. The three levels of the architecture are three different views of the data:
1. External - individual user view
2. Conceptual - community user view
3. Internal - physical or s ...more
It allows organizations to place control of organization-wide database development in the hands of database administrators (DBAs) and other specialists
DBMS allows users and other software to store and retrieve data in a structured way
It helps to specify the logical organization for a database and access and use the information within a database. It provides facilities for controlling data access, enforcing data integrity, managing concurrency controlled, restoring database.