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What can you do with SQL?

Ever wondered what you can do when you master SQL? We explore five potential uses for this versatile programming language. Start your journey to mastery now.
Jul 2022  · 3 min read

What can you do with SQL

The exponential growth in data worldwide means that businesses and organizations must make sense of all this new information. Thankfully, with tools like SQL, organizing large amounts of data is made relatively easy. 

SQL is a powerful language that helps businesses communicate with relational databases. With its help, you can access, retrieve, sort, and update information quickly and easily. As we’ve outlined below, once you master SQL, you can work on an array of interesting projects.

What Can You Do When You Master SQL For Data Science?

1. Explore data in a database

data in a database

SQL is the programming language used to access data inside databases. Through a simple-yet-powerful syntax, you can "query" the database and extract or calculate on your data.

How to get started 

2. Join data from different places

Join data from different places

Databases let you manage all your data by storing it in different tables, and SQL lets you join those different tables back together to answer more complex questions. Mastering joins is the key to unlocking the power of SQL.

How to get started 

3. Make data-driven decisions

data-driven decisions.

Simply calculating things for the sake of it misses the point of data analysis. SQL lets you unlock value by allowing you to answer questions in a data-driven way. Once you are comfortable with SQL syntax, the next step is to use the language to solve real-world problems.

How to get started 

4. Create data reports that drive impact

data reports that drive impact

In order to best communicate the results of your analysis, you can structure your outputs in a report for others to read. This will help you drive impact with your analysis, and provide non-technical stakeholders with the information they need to make data-driven decisions. 

How to get started 

5. Create and manage databases

Create and manage databases

As well as providing a way to analyze data in databases, SQL also lets you create and manage new databases. Understanding how to design, create and administer databases is another step towards SQL mastery.

How to get started 

Intermediate SQL Queries

Beginner
4 hours
1,485,244
Master the basics of querying tables in relational databases such as MySQL, SQL Server, and PostgreSQL.
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SQL for Joining Data

Beginner
5 hours
353,518
Join two or three tables together into one, combine tables using set theory, and work with subqueries in PostgreSQL.

Exploratory Data Analysis in SQL

Beginner
4 hours
70,629
Learn how to explore what's available in a database: the tables, relationships between them, and data stored in them.
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