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SQL for Data Analysis

Learn how to use SQL for data analysis. This learning track is carefully crafted to include topics relevant to data analysis

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4

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48 h

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This SQL learning track is designed to help beginners become proficient data analysts using SQL. Even if you've never used SQL before, this learning path is for you. It covers the most important concepts useful in data analysis: from foundational concepts of SQL, through manipulating data to writing complex SQL reports using advanced SQL constructions.

What is SQL

SQL, or Structured Query Language, is a programming language designed for managing and manipulating data in databases. In data analysis, SQL allows analysts to retrieve, filter, and analyze vast amounts of data stored in databases. By writing specific commands called queries, analysts can extract meaningful insights, generate reports, and make data-driven decisions.

If you’re new to SQL, check out our SQL Primer which provides a comprehensive introduction to the foundational concepts of SQL. We also recommend our article Best Way to Learn SQL which offers guidance on the most effective strategies and resources to accelerate your learning journey.

What is data analysis

Data analysis is the process of reviewing, cleaning, transforming, and manipulating data in order to discover meaningful insights, draw conclusions, and support decision-making. Using data analytical tools and techniques, you can find patterns, trends, and relationships in your data. Once this useful information is extracted, businesses and organizations can then make better decisions, streamline procedures, and address issues.

Why is SQL important for data analysis?

SQL is important for data analysis because it provides a standardized language for searching, manipulating, and combining data from databases and other data sources. It helps analysts to obtain, convert, and aggregate data in an efficient manner, allowing them to extract insights and make informed decisions based on the data.

Let's look at some of the reasons why SQL is useful for data analysis:

  • Data Retrieval – SQL lets people quickly get data from databases. It gives a neat way to ask for and get data using different rules, like filtering by certain criteria, sorting results, and choosing certain information. This makes it easy for people to get the data they need.
  • Data Manipulation – SQL offers advanced tools to work with data. People can use it to do computations, modify data, or combine data sets coming from different sources. SQL lets you do many things with data, like aggregation or grouping, joining tables, and doing sophisticated calculations. This helps data analysts prepare data for analysis.
  • Data Integration – SQL is essential for integrating data from various sources. To undertake complete analysis,analysts frequently need to merge data from multiple datasets. SQL has special tools to join data from different sources. This functionality makes complex datasets easier to analyze.
  • Data Aggregation and Summarization – SQL has many ways to aggregate and summarize data. People can use it to find things like totals, sums, averages, and maximum or minimum values.. They can use these tools to learn from the data and make summary reports that provide overview of data.
  • Data Cleaning and Transformation – Before doing data analysis, data is often cleaned and transformed to verify its quality. SQL has ways to help with cleaning tasks like removing duplicates, dealing with missing values, and data formatting. People can use SQL commands to modify data and make sure it's correct and consistent.
  • Standardization – SQL is popular, highly scalable, and supported by most data technologies. This means people can use SQL to work with many different data technologies. It helps when switching between systems and working with others.

SQL skills needed for data analysis

If you want to become a data analyst, you don’t need to know everything in SQL. There are some SQL features that you’ll need to know very well and you’ll use often. We have carefully crafted this SQL learning track to include topics relevant for data analysis and exclude topics that you’ll likely not need.

Learn SQL for data analysis with our learning track

The track contains four courses:

  1. SQL Basics: Get to know the foundations of SQL. Understand database structure, and learn to write SQL queries.
  2. How to INSERT, UPDATE, or DELETE Data in SQL: Learn SQL commands to add, remove, and modify data in a database. Ensure data integrity and understand the best practices for data updates.
  3. Creating Basic SQL Reports: Transform data into actionable insights. Learn to aggregate, filter, and present data in comprehensive reports.
  4. Window Functions: Window functions are a Swiss army knife of data analysis in SQL. Learn how to perform advanced calculations and analyses that bring out hidden patterns and trends with simple queries.

All courses in the track are interactive: in each exercise you get a little bit of reading and a task to solve to make sure you understand the topic. You learn SQL by writing SQL code and with each exercise solved you gain confidence in your SQL skills.

Here’s what users say about our courses:

  • "Excellent introduction to SQL. Nice job of working the learner from basics to intermediate to advanced topics. Great tool!"
  • "This is a great way to learn. I'm a beginner and feel capable of working with SQL. I would recommend this course to anyone looking to learn something new and challenging."
  • "Excellent learning tool for beginners. I would highly recommend it."
  • "Amazing way of delivering the information and concept."

What to do after you complete the “SQL for Data Analysis” learning track?

We have many resources that will help you in your data analysis journey. Start by downloading our SQL for Data Analysis Cheat Sheet, designed to include SQL commands most frequently used in data analysis.

Practice makes perfect and learning SQL is no exception. If you’re looking for opportunities to practice your SQL data analysis skills after completing this track, find out our practice courses for data analysis:

What's in it for me?

  • From Basic to Advanced SQL Concepts: Start with the basics and seamlessly transition into advanced data manipulation and analysis techniques.
  • Interactive Courses: Dive into 4 meticulously designed courses that ensure a holistic and hands-on learning experience.
  • Real-world Applications: Engage with real datasets, craft insightful reports, and understand the nuances of data manipulation.
  • Certification: Upon successful completion of each course, earn a certificate to showcase your expertise.
  • Community & Support: Access our vibrant learning community, engage in discussions, and receive mentor2student support whenever you hit a roadblock.

Objectives:

  • Learn to write SQL queries with precision.
  • Manipulate data using INSERT, UPDATE, and DELETE operations.
  • Generate insightful reports using aggregation and filtering techniques.
  • Master advanced analytical techniques using window functions.

Who should take this learning path?

  • Aspiring data analysts.
  • Professionals looking to enhance their data analysis skills.
  • SQL enthusiasts keen on diving deeper into data analytics.
  • Business strategists aiming to make data-driven decisions.

Requirements:

  • A web browser.
  • An internet connection.
  • A zeal for data and insights.

Embark on this journey with the "SQL for Data Analysis" track and become the data maestro you've always aspired to be. Dive deep, explore, and let data tell its story.

Track courses

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Basic

SQL Basics

Start here if you’re new to SQL. Learn the basics of SQL, retrieve data from an SQL database and build simple reports.

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52

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Basic

How to INSERT, UPDATE, and DELETE Data in SQL

Go beyond simple SELECT statements! Learn all about the SQL UPDATE, INSERT, and DELETE commands, and find out how to combine them with NULLs and JOINs.

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97

Coding challenges

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Advanced

Creating Basic SQL Reports

Teach yourself how to build basic SQL reports to track and analyze the performance of your metrics.

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218

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Advanced

Window Functions

Learn how to use analytic SQL functions to deeply understand data.

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