History of the Operating System Operating System The operating system is a system program that serves as an interface between the computing system and the end-user. Operating sys…

Q 2. What are the different subsets of SQL? Data Definition Language (DDL) – It allows you to perform various operations on the database such as CREATE, ALTER, and DELETE objects.…

Data Models A database model defines the logical design and structure of a database and defines how data will be stored, accessed, and updated in a database management system. Wh…

Data Independence The three-schema architecture can be used to further explain the concept of data independence, which can be defined as the capacity to change the schema at one …

DATA   BASE  MANAGEMENT  SYSTEM : A database-management system (DBMS) is a collection of interrelated data and a set of programs to access those data. The collection of d…