What is Database? A database is a structured collection of information that is organized and stored in a way that enables effective information service and management. It is designed to store, manage and process large amounts of data ensuring data integrity, security and reliability. Databases are commonly used in a variety of applications and systems, from small personal projects to large enterprise-level applications. Databases are essential to many modern technologies and applications, including web applications, mobile applications, financial systems, customer relationship management (CRM), and content management systems (CMS). There are many types of databases, each designed to handle a specific type of data and workload. Some of the more common database types include: 1 - Relational Database: It is the most traditional and widely used type of database. In a relational database, data is divided into tables with rows and columns. Each row represents a record...