Must-know foundational database concepts

In this section, we will create the groundwork for your understanding of databases, which is a crucial component for any data engineer. We start with the fundamentals, such as comprehending the many types of databases, the normalization tenets, and the idea of indexing. These foundational elements will serve as the starting point for your exploration of the more complex world of data engineering. This part is the starting point for a more in-depth investigation of database systems, whether you are a beginner or an experienced professional reviewing the fundamentals. Let’s begin by strengthening your fundamental database knowledge.

Relational databases

A relational database utilizes a relational model to store structured data into tables. Tables are collections of rows and columns. Each row in the table represents a single record of information, while each column represents attributes or fields. The following screenshot is an example...