SQL Data Analysis: Cleaning, Aggregation, and Table Joins with MySQL

By Progya Categories: SQL
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About Course

Learn how to analyze and transform data using SQL and MySQL by mastering real-world data operations such as cleaning, aggregation, sorting, and joining datasets.

This course is designed to help you move beyond basic SQL and start working with data in a way that reflects real business scenarios. You will learn how to format text data, replace values, calculate totals and averages, and organize datasets for analysis. More importantly, you will understand how to group data and combine multiple tables using joins, which are essential skills for any data analyst.

Through hands-on examples, you will gain the ability to turn raw data into meaningful insights, making this course highly practical and job-oriented.

By the end of this course, you will be able to confidently perform data analysis tasks using SQL, which are directly applicable in roles such as data analyst, business analyst, and financial data reporting.

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What Will You Learn?

  • Clean and standardize messy data by converting text into lowercase and uppercase formats
  • Replace incorrect or inconsistent values in datasets to improve data accuracy
  • Perform essential calculations such as totals, averages, and counts to extract meaningful insights
  • Understand how to summarize large datasets quickly using aggregation techniques
  • Sort and organize data so you can easily identify trends and patterns
  • Perform group-based analysis to answer real-world business questions from data
  • Combine data from multiple tables using joins, which is one of the most powerful SQL skills
  • Work with different types of joins (common, left, right) to handle real-life data relationships
  • Transform raw datasets into structured, analysis-ready data
  • Build confidence to perform real-world data analysis tasks independently
  • Develop practical SQL skills that are directly used in jobs like data analyst, reporting analyst, and banking analytics roles

Course Content

Setup and Data Preparation

  • Installing MySQL in Windows and Mac
  • Download necessary datasets
  • Loading CSV dataset in MySQL
    08:02

Data Transformation Functions

Joins and Relational Data Analysis

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