Database Basic Concepts
Databases 101: What You Need to Know A database is an organized collection of data that can be easily accessed, managed, and updated. Databases are used in a wide range of applications, from business to scientific research, and they are essential for storing and managing large amounts of data. Here are some key terms and concepts related to databases that you should know: Data model : A data model is a way of organizing and representing data in a database. There are several types of data models, including relational, hierarchical, and network. Relational database : A relational database is the most common type of database. It organizes data into tables, with each table consisting of rows and columns. The relationships between tables are defined by primary and foreign keys. SQL : Structured Query Language (SQL) is a programming language used to manage and manipulate data in a relational database. SQL allows you to perform a wide range of operations, including querying, inserting, updati...