DBMS Interview Questions | Fresherjobs

A database management system (DBMS) is a software package designed to define, manipulate, retrieve and manage data in a database. A DBMS generally manipulates the data itself, the data format, field names, record structure and file structure. It also defines rules to validate and manipulate this data.

Types of Database Management Systems:
There are four structural types of database management systems:
  • Hierarchical databases - It is very fast and simple. In a hierarchical database, records contain information about there groups of parent/child relationships, just like as a tree structure.
  • Network databases - A network databases are mainly used on a large digital computers. It more connections can be made between different types of data, network databases are considered more efficiency
  • Relational databases - In relational databases, the relationship between data files is relational. Hierarchical and network databases require the user to pass a hierarchy in order to access needed data.
  • Object-oriented databases - It takes more than storage of programming language objects. Object DBMS's increase the semantics of the C++ and Java

DBMS plays a crucial role in both the creation and management of data. Without a database management system, running and managing data effectively is not possible. Serving as the intermediary between the user and the database, a DBMS provides users access to files stored in a database.

Materials Here:Click Here 

Join Here for more updates

Post a Comment