An introduction to databases, Study notes of Database Management Systems (DBMS)

Download An introduction to databases and more Study notes Database Management Systems (DBMS) in PDF only on Docsity! An introduction to databases A database is a structured collection of data organized for efficient storage, retrieval, and management. It acts as a central repository for storing information in a structured format, allowing for easy access and manipulation. Databases are essential in various domains, including business, healthcare, education, and more, where they help in organizing, analyzing, and making informed decisions based on data. Key components of a database include tables (which store data in rows and columns), a schema (which defines the database structure), and a Database Management System (DBMS) software that manages data operations. The DBMS ensures data integrity, security, and provides a query language (SQL) to interact with the database. Databases come in different types, with relational databases (RDBMS) being one of the most common. In an RDBMS, data is organized into tables with defined relationships between them. Other types include NoSQL databases for unstructured data and NewSQL databases that combine the strengths of both relational and NoSQL systems. Databases are a fundamental part of modern information systems, enabling efficient data storage and retrieval, data analysis, and supporting various applications and industries.