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Instance and schema in DBMS

Definition of schema: Design of a database is called the schema. Schema is of three types: Physical schema, logical schema and view schema. The design of a database at physical level… Read More

Data Abstraction in DBMS

Database systems are made-up of complex data structures. To ease the user interaction with database, the developers hide internal irrelevant details from users. This process of hiding irrelevant details from… Read More

View of Data in DBMS

Abstraction is one of the main features of database systems. Hiding irrelevant details from user and providing abstract view of data to users, helps in easy and efficient user-database interaction… Read More

Advantages of DBMS over file system

Drawbacks of File system: Data Isolation: Because data are scattered in various files, and files may be in different formats, writing new application programs to retrieve the appropriate data is… Read More

Database Applications – DBMS

Applications where we use Database Management Systems are: Telecom: There is a database to keeps track of the information regarding calls made, network usage, customer details etc. Without the database… Read More

Introduction to DBMS

DBMS stands for Database Management System. We can break it like this DBMS = Database + Management System. Database is a collection of data and Management System is a set… Read More

JSON Tutorial: Learn JSON in 10 Minutes

JSON stands for JavaScript Object Notation. JSON objects are used for transferring data between server and client, XML serves the same purpose. However JSON objects have several advantages over XML… Read More

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