Category: Database Management System

SQL – Data Definition Language

SQL Overview SQL (Structured Query Language) is the standard query language for relational databases, which was initially established by the

Union Union is a binary operation that takes two relations, R and S, as input and produces an output relation

ANSI/SPARC Architecture Data abstraction is one of the primary benefits of database systems. Data abstraction is accomplished by defining various

Database Systems can be easily described as a structured set of data stored in a computer that may be accessed