Introduction
Part of the Fundamentals section of Coddy's SQL journey — lesson 1 of 72.
SQL (Structured Query Language) is a standard language for managing and manipulating relational databases. It allows users to store, retrieve, and analyze data efficiently, making it essential for businesses and organizations worldwide.
Challenge
EasyPress the run code button to run your first code in SQL
Cheat sheet
SQL (Structured Query Language) is a standard language for managing and manipulating relational databases. It allows users to store, retrieve, and analyze data efficiently.
Try it yourself
SELECT user_id FROM usersAll lessons in Fundamentals
4More Keywords
The IN keywordThe BETWEEN keywordThe LIKE keywordThe AS keywordRecap - Cellphone Models
2Conditions
Conditions BasicsThe AND keywordThe OR keywordThe NOT keywordMultiple Conditions CombinedParenthesisBooleans5Arithmetic Operations
Mathematical OperatorsMathematical ColumnsThe Modulo OperationThe ROUND() Function3Specific Return Format
Null valuesSort Results Part 1Sort Results Part 2Recap - Cyber Security FirmLimit number of recordsRecap - Vehicle Factory6Intro Challenges
Recap - Parliamentary ElectionRecap - Police Criminal ArrestRecap - Bar Beverage ContainerRecap - Engineer new columns