Types of databases include relational, NoSQL, data warehouses, and data lakes Understanding the types of data storage, indexing, and data retrieval techniques is fundamental to understanding database concepts

A database management system (DBMS) is a software system that manages, stores, and processes data, ensuring data are organized, accessible, and secure Data can be categorized into structured, semistructured, and unstructured types, requiring different tools and techniques to collect and analyze.

data lake — type of database that stores large amounts of raw data in their original format until the data are needed. database management system (DBMS) — software system that manages, stores, and process data, ensuring it is organized, accessible, and secure. data warehouse — type of database that integrates data from various sources and stores them in a combined manner. indexing — technique used to improve the speed of data retrieval operations in a database.