Database Fundamentals introduces database concepts, including relational databases, tables and data types, data selection and manipulation, views, stored procedures, functions, normalization, constraints, indexes, security, and backup and restore.
The DBMS software enables users to share data. It provides a systematic method of creating, updating, retrieving and storing information in a database. DBMSs also are generally responsible for data integrity, data access control, and automated rollback, restart and recovery. Data sharing is a primary feature of the database management system (DBMS). 1. In traditional approach, information is stored in flat files which are maintained by the file system under the operating system's control.
The three fundamental elements of a database management system:
The DBMS manages the data; the database engine allows data to be accessed, locked and modified; and the database schema defines the database's logical structure. These three foundational elements help provide concurrency, security, data integrity and uniform data administration procedures.