A transaction in a database management system refers to a logical unit of work that consists of one or more database operations. It represents a sequence of operations that should be executed as a single, indivisible unit. A transaction can involve reading or modifying data stored in a database.
Data Base Management System
A Database Management System (DBMS) is a software system that allows users to create, manage, and manipulate databases. A DBMS provides a number of services such as data storage, data retrieval, data manipulation, and data security.