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SQL courses

SQL is essential for efficient database management and data analysis. Build your SQL skills with interactive courses, tracks and projects curated by real-world experts.

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Recommended for SQL beginners

New to SQL and don't know where to start? Our introductory courses are designed for absolute beginners.

Traseu de învățare

Bazele SQL

4.7+
105 recenzii
26 h
Stăpânește fundamentele SQL necesare pentru business, învață cum să scrii interogări SQL și începe să-ți analizezi datele folosind acest limbaj puternic.

Curs

Introducere în SQL

De bazăNivel de competențe
4.8+
53.993 de recenzii
2 h
Învață să creezi și să interoghezi baze de date relaționale folosind SQL în doar două ore.
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Navighează cursurile și traseele SQL

Curs

Introducere în SQL

De bazăNivel de competențe
4.8+
53.993 de recenzii
2 h
Învață să creezi și să interoghezi baze de date relaționale folosind SQL în doar două ore.

Curs

SQL intermediar

De bazăNivel de competențe
4.8+
35.418 recenzii
4 h
Însoțit la fiecare pas de interogări practice, acest curs îți arată tot ce trebuie să știi pentru a analiza date cu propriul cod SQL chiar azi!

Curs

Joining Data in SQL

De bazăNivel de competențe
4.8+
21.818 recenzii
4 h
Îmbunătățește-ți cunoștințele de SQL și învață să unești tabele, să aplici teoria mulțimilor relaționale și să lucrezi cu subinterogări.

Curs

Manipularea datelor în SQL

De bazăNivel de competențe
4.8+
2.529 de recenzii
4 h
Master the complex SQL queries necessary to answer a wide variety of data science questions and prepare robust data sets for analysis in PostgreSQL.

Curs

Analiza Exploratorie a Datelor în SQL

IntermediarNivel de competențe
4.7+
4.520 de recenzii
4 h
Învață să explorezi ce este disponibil într-o bază de date: tabelele, relațiile dintre ele și datele stocate în ele.

Curs

Proiectarea bazelor de date

De bazăNivel de competențe
4.7+
7.335 de recenzii
4 h
Învață să proiectezi baze de date în SQL pentru a procesa, stoca și organiza datele mai eficient.

Curs

Introducere în SQL Server

De bazăNivel de competențe
4.8+
389 de recenzii
4 h
Learn to use SQL Server to perform common data manipulation tasks and master common data manipulation tasks using this database system.

Curs

Introduction to SQL Querying with AI

De bazăNivel de competențe
4.8+
540 de recenzii
3 h
Learn SQL Querying with AI by writing prompts, generating queries, and analyzing data to solve real-world problems.

Curs

Analyzing Business Data in SQL

IntermediarNivel de competențe
4.8+
240 de recenzii
4 h
Learn to write SQL queries to calculate key metrics that businesses use to measure performance.

Curs

Applying SQL to Real-World Problems

IntermediarNivel de competențe
4.8+
1.142 de recenzii
4 h
Find tables, store and manage new tables and views, and write maintainable SQL code to answer business questions.

Curs

Intermediate SQL Server

IntermediarNivel de competențe
4.8+
228 de recenzii
4 h
In this course, you will use T-SQL, the flavor of SQL used in Microsofts SQL Server for data analysis.

Curs

Introduction to NoSQL

De bazăNivel de competențe
4.8+
786 de recenzii
4 h
Conquer NoSQL and supercharge data workflows. Learn Snowflake to work with big data, Postgres JSON for handling document data, and Redis for key-value data.

Curs

Creating PostgreSQL Databases

De bazăNivel de competențe
4.8+
602 recenzii
4 h
Learn how to create a PostgreSQL database and explore the structure, data types, and how to normalize databases.

Curs

Reporting in SQL

IntermediarNivel de competențe
4.8+
778 de recenzii
4 h
Learn how to build your own SQL reports and dashboards, plus hone your data exploration, cleaning, and validation skills.

Curs

Introduction to Oracle SQL

De bazăNivel de competențe
4.8+
245 de recenzii
4 h
Sharpen your skills in Oracle SQL including SQL basics, aggregating, combining, and customizing data.

Curs

NoSQL Concepts

IntermediarNivel de competențe
4.8+
515 recenzii
2 h
In this conceptual course (no coding required), you will learn about the four major NoSQL databases and popular engines.

Curs

Intermediate SQL Querying with AI

De bazăNivel de competențe
4.8+
220 de recenzii
3 h
Build SQL skills by writing AI prompts that generate queries for sorting, grouping, filtering, and categorizing data.

Curs

Improving Query Performance in SQL Server

IntermediarNivel de competențe
4.8+
394 de recenzii
4 h
In this course, students will learn to write queries that are both efficient and easy to read and understand.

Curs

Cleaning Data in PostgreSQL Databases

IntermediarNivel de competențe
4.8+
443 de recenzii
4 h
Learn to tame your raw, messy data stored in a PostgreSQL database to extract accurate insights.

Curs

Time Series Analysis in SQL Server

IntermediarNivel de competențe
4.7+
361 de recenzii
5 h
Explore ways to work with date and time data in SQL Server for time series analysis

Resurse conexe despre SQL

articol de blog

Top 99 SQL Interview Questions and Answers for 2026

Get interview-ready with this comprehensive overview of essential SQL interview questions and answers for job hunters, hiring managers, and recruiters.
Elena Kosourova's photo

Elena Kosourova

15 min.

articol de blog

10 Portfolio-Ready SQL Projects for All Levels

Select your first—or next—SQL project to practice your current SQL skills, develop new ones, and create an outstanding professional portfolio.
Elena Kosourova's photo

Elena Kosourova

11 min.

cheat sheet

SQL Basics Cheat Sheet

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

Richie Cotton

5 min.


Ready to apply your skills?

Projects allow you to apply your knowledge to a wide range of datasets
to solve real-world problems in your browser

Frequently asked questions

Which SQL course is best for beginners?

The best SQL course for beginners is Introduction to SQL. It covers the basics of relational databases, creating SQL queries and an introduction to the most popular SQL favors (PostgreSQL and SQL Server).

What is SQL and what is it used for?

SQL, or Structured Query Language, is a programming language designed for managing and manipulating data in relational databases. It is used extensively for data retrieval, insertion, updating, and deleting. This makes it a fundamental tool for data analysis, database management, and in various applications where data storage and query are essential. Alongside, SQL's standardized language enables efficient and effective interaction with large and complex databases across diverse systems.

What is a SQL database?

A SQL database is a structured collection of data that can be accessed and managed using SQL (Structured Query Language). It uses tables to organize data into rows and columns, allowing for efficient data retrieval, manipulation, and relational database management.

Do I need to know programming to learn SQL?

No, you do not need to know programming to learn SQL, but familiarity with basic programming concepts can be beneficial.

How does SQL relate to databases like PostgreSQL and MySQL?

SQL, is the standard language used for interacting with databases, including popular systems like PostgreSQL and MySQL. These databases use SQL as the interface for accessing and manipulating stored data. While SQL is the language, PostgreSQL and MySQL are types of database management systems that use SQL to manage and organize data efficiently, each with its own additional features and capabilities. This relationship means that by learning SQL, you can effectively work with a variety of database systems, including PostgreSQL and MySQL.

What types of jobs use SQL?

SQL skills are directly relevant in roles such as database administrators, data analysts, and software engineers, where managing and analyzing large data sets are central tasks. Additionally, professionals in fields like business intelligence, marketing, finance, and healthcare management also benefit greatly from SQL skills, as they often require data querying and reporting to make informed decisions and understand trends. Essentially, any job that involves working with data—whether for analyzing, reporting, or managing—can benefit from proficiency in SQL.

Is it worth learning SQL in 2025?

Absolutely, learning SQL in 2025 is valuable, even with the rise of generative AI. While AI can assist in building and interpreting SQL queries, a deep understanding of SQL syntax and database structure is crucial for designing efficient databases, troubleshooting, and ensuring the accuracy and relevance of data retrieved—a skill set that AI tools cannot fully replicate.

Does DataCamp offer SQL Certification?

Yes, our SQL Associate Certification enables you to prove your SQL skills to employers.

Our Data Analyst Certification is also an excellent option to prove your data analysis knowledge with SQL and either Python or R.

What are the benefits on an online SQL course?

The benefits of an online SQL course include flexibility, allowing you to learn at your own pace and schedule. Our SQL courses are taught by industry experts and enable learning by doing, with interative exercises and practical projects to get you job-ready.

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