SQL
SQL, Structured Query Language, is a programming language designed to manage data stored in these relational databases. SQL operates through simple, declarative statements. This keeps data accurate and secure, and it helps maintain the integrity of databases, regardless of size.
We live in a data-informed world, and there are many businesses that store their information inside large, relational databases. This makes SQL a great skill not only for data scientists and engineers, but for anyone wanting to be data-literate.
SQL Concepts
- About SQL
- Aggregate Functions
- Commands
- Comments
- Constraints
- Data Types
- Date Formats
- Dates
- Errors
- Indexes
- Joins
- Loops
- Math Functions
- Operators
- Optimizing Queries
- Performance Tuning
- Primary Keys
- Procedures
- SQL Subqueries
- String Functions
- Wildcards
- Window Functions
SQL contributors
- BrandonDusch29 contributions
- Jens.G.R.16 contributions
- StevenSwiniarski10 contributions
- JeremyBarbosa9 contributions
- itispragativerma65608500808 contributions
- nikolaspoczekaj7 contributions
- Victoria-DR5 contributions
- CaupolicanDiaz5 contributions
- THE-Spellchecker3 contributions
- KyraThompson3 contributions
- juliaAB3 contributions
- NikhilRaikwar182 contributions
- rclarkeweb2 contributions
- kazumi_kerr2 contributions
- ThegenJackson1 contribution
- jubalclary1 contribution
- andersooi1 contribution
- andyguo02281 contribution
- DaMull1 contribution
- arisdelaCruz14136188571 contribution
- core72078777091 contribution
- Kenny_Coppinger1 contribution
- Fedoteh1 contribution
- haroon26atcc1 contribution
- sharkipelago1 contribution
- regantewksbury1 contribution
- cslylla1 contribution
- DevanshBhargava031 contribution
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Learn SQL on Codecademy
- Skill path
Analyze Data with SQL
Learn to analyze data with SQL and prepare for technical interviews.Includes 9 CoursesWith CertificateBeginner Friendly17 hours - Free course
Learn SQL
In this SQL course, you'll learn how to manage large datasets and analyze real data using the standard data management language.Beginner Friendly5 hours