Part 2 - SQL Functions for Data Analysis

Structured Query Language aka SQL is used to handle data in databases. It provides various in-built functions and commands to access and manage databases according to our requirements.
SQL is widely used for querying directly from databases and is, therefore, one of the most commonly used languages for data analysis tasks.

A function is a set of SQL statements that perform a specific task. It is used to for processing, manipulating, maintaining of databases