SQL Basics Cheat Sheet 2

Last Updated: 22nd July, 2024

Fernando Auer IV

Central Interactions Consultant at almaBetter

With this SQL cheat sheet, you'll have a handy reference guide to basic querying tables, filtering data, and aggregating data

SQL, also known as Structured Query Language, is a powerful tool to search through large amounts of data and return specific information for analysis. Learning SQL is crucial for anyone aspiring to be a data analyst, data engineer, or data scientist, and helpful in many other fields such as web development or marketing.

In this cheat sheet, you'll find a handy list of functions covering querying data, filtering data, aggregation, and more—all collected from our SQL Fundamentals Skill Track.

To learn more about SQL basics, watch this video from our course. To easily run all the example code in this tutorial yourself, you can create a DataLab workbook for free that has the dataset, SQL, and the code samples preconfigured.

The Different Dialects of SQL

Although SQL languages all share a basic structure, some of the specific commands and styles can differ slightly. Popular dialects include MySQL, SQLite, SQL Server, Oracle SQL, and more. PostgreSQL is a good place to start —since it’s close to standard SQL syntax and is easily adapted to other dialects.