sqlite3 3.45.1

Online SQL Editor & Code Runner

Name: myCompiler SQL
Author: myCompiler

myCompiler is a free online SQL editor and code runner that lets you write, run, and share SQL code directly in your browser. It works as your SQL playground, sandbox, fiddle, cloud compiler, and online REPL. No downloads, no installation needed. Just open the editor and start coding with syntax highlighting, autocomplete, and instant output.

Start coding in SQL How it works

27+ languages Used by 1M+ developers Free forever

main.sql

CREATE TABLE employees (
  id INTEGER PRIMARY KEY,
  name TEXT NOT NULL,
  department TEXT,
  salary REAL
);
INSERT INTO employees
  VALUES (1, 'Alice', 'Eng', 95000);
INSERT INTO employees
  VALUES (2, 'Bob', 'Mkt', 72000);
INSERT INTO employees
  VALUES (3, 'Charlie', 'Eng', 88000);
SELECT department, AVG(salary) as avg_salary
FROM employees GROUP BY department;

Output

Eng|91500.0 Mkt|72000.0

How to run SQL code online

Three steps to go from idea to running SQL code in this online playground. No account required.

Write your code

Open the SQL editor and start writing. The smart editor gives you syntax highlighting, autocomplete, and error detection as you type.

Click Run

Hit the Run button or press +Enter to run your SQL code on secure, sandboxed cloud servers.

See results

Output appears instantly in the integrated terminal. Errors and exceptions show up with clear, helpful messages.

Everything you need to code in SQL

A complete online SQL IDE and coding playground in your browser. Write, run, and share code without any setup.

Zero setup required

Start coding in seconds with this browser-based SQL interpreter. No downloads, no installations, no environment configuration. Open your browser, go to myCompiler, and start writing SQL code immediately.

Works on any device with a web browser. Desktop, laptop, tablet, phone, Chromebook. There is nothing to install and nothing to configure.

Feature-rich code editor

Write SQL with a professional-grade code editor built into your browser. Syntax highlighting colors your code for readability, making keywords, strings, and functions easy to distinguish at a glance.

Intelligent autocomplete suggests methods and properties as you type, and real-time error detection catches mistakes before you run your code.

Multi-file projects

Create and manage multiple files in a single project. Use the file sidebar to organize your code into modules, then import them across files just like in a desktop IDE.

Build modular applications with proper project structure. Each file is editable, and you can switch between them instantly.

Run code instantly

Click the Run button or press +Enter to execute your SQL code instantly. This online code runner displays output immediately in the integrated terminal panel. Your code runs on secure, sandboxed cloud servers and results appear in seconds.

Error messages and tracebacks are displayed clearly, making it easy to find and fix issues. The terminal supports ANSI colors for rich output formatting.

Ready to try it? Write and run your first SQL program in seconds.

Open SQL editor

SQL on myCompiler

myCompiler runs sqlite3 3.45.1, always up to date with the latest stable release. You get a full browser-based IDE with syntax highlighting, intelligent code completion, multi-file project support, a built-in terminal for real-time output, and standard input (stdin) for interactive programs. Write, compile, run, and debug SQL code on any device. Desktop, laptop, tablet, phone, Chromebook. Zero downloads, zero configuration, and no sign-up required. Save your programs with a unique URL and share them with anyone. You can also embed a working SQL editor on your own website.

Use this online SQL playground as a quick code executor for testing snippets, a coding sandbox for learning, or a cloud compiler for coding interview preparation. The editor includes dark mode for comfortable coding, keyboard shortcuts for faster workflows, and clear error messages with line numbers so you can debug quickly. Students use it for homework and practice. Teachers use it to share working examples. Developers use it to prototype ideas. myCompiler is beginner-friendly, fast, and completely free. It works in any modern web browser.

Start coding in SQL

SQL code examples

Common SQL patterns you can try in the online compiler. Each example is ready to run.

SELECT Query in SQL

main.sql

-- Basic SELECT query
SELECT 'Hello' AS greeting, 42 AS answer;

-- Select with WHERE
SELECT * FROM sqlite_master WHERE type = 'table';

CREATE TABLE in SQL

main.sql

CREATE TABLE students (
  id INTEGER PRIMARY KEY,
  name TEXT NOT NULL,
  age INTEGER,
  grade REAL
);

INSERT INTO students VALUES (1, 'Alice', 20, 3.8);
INSERT INTO students VALUES (2, 'Bob', 22, 3.5);
INSERT INTO students VALUES (3, 'Charlie', 21, 3.9);

SELECT * FROM students;

WHERE and Filtering in SQL

main.sql

CREATE TABLE products (id INT, name TEXT, price REAL, category TEXT);
INSERT INTO products VALUES
  (1, 'Laptop', 999.99, 'Electronics'),
  (2, 'Book', 19.99, 'Education'),
  (3, 'Phone', 699.99, 'Electronics'),
  (4, 'Pen', 2.99, 'Office');

SELECT name, price FROM products
WHERE price > 20 AND category = 'Electronics';

ORDER BY and GROUP BY in SQL

main.sql

CREATE TABLE sales (product TEXT, region TEXT, amount REAL);
INSERT INTO sales VALUES
  ('Widget', 'North', 100), ('Widget', 'South', 150),
  ('Gadget', 'North', 200), ('Gadget', 'South', 80);

SELECT product, SUM(amount) AS total
FROM sales
GROUP BY product
ORDER BY total DESC;

INSERT and UPDATE in SQL

main.sql

CREATE TABLE users (id INTEGER PRIMARY KEY, name TEXT, email TEXT);

-- Insert rows
INSERT INTO users VALUES (1, 'Alice', 'alice@example.com');
INSERT INTO users VALUES (2, 'Bob', 'bob@example.com');

-- Update a row
UPDATE users SET email = 'alice@newmail.com' WHERE id = 1;

SELECT * FROM users;

Aggregate Functions in SQL

main.sql

CREATE TABLE scores (student TEXT, subject TEXT, score INT);
INSERT INTO scores VALUES
  ('Alice', 'Math', 92), ('Alice', 'Science', 88),
  ('Bob', 'Math', 78), ('Bob', 'Science', 95);

SELECT student,
  AVG(score) AS average,
  MAX(score) AS best,
  MIN(score) AS worst
FROM scores GROUP BY student;

Subqueries in SQL

main.sql

CREATE TABLE employees (id INT, name TEXT, salary REAL, dept TEXT);
INSERT INTO employees VALUES
  (1, 'Alice', 90000, 'Eng'), (2, 'Bob', 75000, 'Mktg'),
  (3, 'Charlie', 95000, 'Eng'), (4, 'Diana', 80000, 'Mktg');

SELECT name, salary FROM employees
WHERE salary > (SELECT AVG(salary) FROM employees);

CASE WHEN in SQL

main.sql

CREATE TABLE orders (id INT, total REAL, status TEXT);
INSERT INTO orders VALUES
  (1, 250, 'shipped'), (2, 50, 'pending'), (3, 500, 'delivered');

SELECT id, total,
  CASE
    WHEN total >= 200 THEN 'Large'
    WHEN total >= 100 THEN 'Medium'
    ELSE 'Small'
  END AS size
FROM orders;

Indexes in SQL

main.sql

CREATE TABLE logs (id INTEGER PRIMARY KEY, ts TEXT, message TEXT, level TEXT);
INSERT INTO logs VALUES
  (1, '2024-01-01', 'App started', 'INFO'),
  (2, '2024-01-01', 'Error occurred', 'ERROR'),
  (3, '2024-01-02', 'Request received', 'INFO');

CREATE INDEX idx_level ON logs(level);

SELECT * FROM logs WHERE level = 'ERROR';

JOIN Queries in SQL

main.sql

CREATE TABLE depts (id INT, name TEXT);
INSERT INTO depts VALUES (1,'Engineering'),(2,'Marketing');

CREATE TABLE emps (id INT, name TEXT, dept_id INT, salary INT);
INSERT INTO emps VALUES (1,'Alice',1,90000),(2,'Bob',2,75000),(3,'Charlie',1,95000);

SELECT e.name, d.name AS department, e.salary
FROM emps e
INNER JOIN depts d ON e.dept_id = d.id
ORDER BY e.salary DESC;

Try these examples in the editor

How to take input in SQL online

myCompiler supports standard input (stdin) for SQL programs. Use SQL's standard input functions to read user input. Enter your input data in the stdin panel before running your program.

This works for both single-line and multi-line input. You can read strings and convert to numbers using the language's built-in I/O functions.

Try it yourself

main.sql stdin supported

-- SQL reads from tables, not stdin
CREATE TABLE greetings (
  name TEXT,
  age INTEGER
);
INSERT INTO greetings VALUES ('Alice', 25);
SELECT 'Hello ' || name || '!' AS greeting,
       'You''ll be ' || (age + 1) || ' next year.' AS message
FROM greetings;

Output

greeting|message
Hello Alice!|You'll be 26 next year.

No setup, no sign-up. Start writing SQL code right now.

Start coding now

Getting started with SQL online

You can start writing and running SQL code right now without installing anything. Type your code, and click Run. This free SQL code runner executes your program instantly and displays the output in the terminal panel below the editor. Open the SQL online editor, type your code, and click Run.

If you're new to SQL, use this online SQL playground to start with the basics like variables, data types, conditionals, and loops. The code examples above cover all the fundamentals you need to get started. Each example can be copied into the sandbox and run immediately. No setup, no configuration.

As you progress, try creating multi-file projects, using libraries, and sharing your programs with others via URL. Sign up for a free account to save your work and build a personal library of programs. myCompiler works as a full online SQL IDE right in your browser.

Who uses myCompiler

Whether you're learning to code, preparing for interviews, or prototyping ideas, myCompiler is built for you.

Students & Learners

Practice exercises, complete homework assignments, and experiment with code without installing anything on school or personal computers.

Teachers & Educators

Share code examples with students via unique URLs. Embed the compiler in course materials so students can run examples directly in the browser.

Interview Candidates

Practice coding interview problems, test algorithms, and verify solutions quickly during preparation for technical interviews.

Professional Developers

Quickly prototype ideas, test code snippets, or try out a library without setting up a local environment. Great for quick experiments.

Content Creators & Bloggers

Embed interactive examples in blog posts, tutorials, and documentation so readers can run code without leaving the page.

Teams & Collaborators

Share code snippets with colleagues via URLs. Others can view, run, and fork your code to build on your work.

myCompiler vs. local IDE

Why use an online SQL compiler instead of installing one locally?

Feature	myCompiler	Local IDE
Setup time	Instant	Minutes to hours
Installation	None required	SQL + IDE required
Device support	Any browser	Desktop only
Sharing code	One-click URL	Manual (file, git, etc.)
Languages	27+ in one place	One at a time
Cost	Free forever	Free to $$$
Works on Chromebook	Yes	Limited

What is SQL?

SQL (Structured Query Language) is the standard language for managing and querying relational databases. Originally developed by Donald Chamberlin and Raymond Boyce at IBM in the early 1970s based on E.F. Codd's relational model, SQL became an ANSI/ISO standard in 1986 and is now supported by virtually every relational database system, SQLite, PostgreSQL, MySQL, Oracle, and SQL Server all use SQL as their primary query language.

SQL is a declarative language, you describe what data you want, not how to retrieve it. The database engine figures out the most efficient execution plan. Core SQL operations include SELECT for querying, INSERT, UPDATE, DELETE for modifying data, and CREATE TABLE, ALTER TABLE, DROP for schema management.

What is SQL used for?

SQL is used for data retrieval and analysis, filtering, aggregating, and joining data from relational databases, business intelligence and reporting via tools like Tableau, Power BI, and Redash that generate SQL, data engineering in pipelines using Spark SQL and dbt, application backend databases where every web app stores and retrieves data, and data science for extracting datasets from warehouses.

SQL for beginners

SQL is one of the most approachable technical skills to learn, the syntax reads like plain English. SELECT name FROM users WHERE age &gt. 18 is self-explanatory. SQL is also one of the most valuable technical skills you can have, as virtually every organization stores data in relational databases. Use myCompiler's online SQL editor (powered by SQLite) to practice queries, create tables, insert data, and write SELECT, JOIN, and GROUP BY queries immediately.

SQL vs other languages

Compared to NoSQL databases (MongoDB, DynamoDB), relational SQL databases enforce a fixed schema and ACID transactions, making them better for consistent, structured data. Compared to MySQL, SQLite (used on myCompiler) is serverless and file-based, perfect for learning and local development. Compared to PostgreSQL, MySQL and SQLite are simpler but PostgreSQL has more advanced features (JSON, full-text search, partitioning).

Why use an online SQL compiler?

An online SQL editor, also called a SQL sandbox or SQL playground, lets you write and run SQL queries directly in your browser without installing a database server. This is ideal for learning SQL from scratch, practicing JOIN queries, experimenting with aggregate functions, preparing for data analyst interviews, and testing database schemas without local setup.

myCompiler's online SQL IDE runs SQLite, supporting standard SQL including SELECT, JOIN, GROUP BY, HAVING, subqueries, CTEs, and window functions. Each session starts with a fresh database. Save and share your SQL scripts via URL, completely free.

Why is SQL so popular?

SQL has been in continuous use for over 50 years and remains one of the most in-demand technical skills in every industry. Data is the foundation of every business, and SQL is the language for accessing that data. From a junior analyst writing reports to a senior data engineer building pipelines, SQL is used daily. Stack Overflow surveys consistently show SQL as one of the most commonly used technologies across all developer types.

SQL career opportunities

SQL skills are required for data analyst, data engineer, data scientist, business analyst, backend developer, and database administrator roles. Almost every technical job touches data, and SQL is the universal language for working with it. It is one of the highest-ROI skills to learn, it can be picked up quickly and is immediately applicable in virtually any industry.

Try SQL online Free · No sign-up needed

Keyboard shortcuts

Code faster with these keyboard shortcuts in the myCompiler editor.

Run code

+ Enter

Save program

+ S

Toggle comment

+ /

Indent line

Tab

Unindent line

Shift + Tab

Undo

+ Z

Select next occurrence

+ D

Find & replace

+ H

Embed the SQL compiler on your website

Add an interactive SQL compiler to your website, blog, or learning platform. Readers can write and run SQL code directly on your page without leaving it.

Perfect for technical tutorials, coding courses, documentation, and educational content. Save a program on myCompiler and use the embed link to add it to any webpage.

Embedded SQL editor and code runner

HTML

<iframe
src="https://www.mycompiler.io
    /embed/sql"
width="100%"
height="400"
frameborder="0">
</iframe>

Why developers choose myCompiler

A full-featured online IDE for SQL and 27+ other programming languages.

27+ Languages

Python, JavaScript, Java, C++, Rust, Go, TypeScript, C#, and many more. All compilers and interpreters in one place. Switch languages instantly.

Dark & Light Mode

Switch between light and dark themes with one click. Code comfortably in any lighting condition, day or night.

Mobile Friendly

Fully responsive editor optimized for phones, tablets, and Chromebooks. Code on any device with a web browser. No app download needed.

Save & Share Code

Save programs to your account, share via unique URLs, and let others view, fork, and run your code. Great for collaboration and code reviews.

Tags & Organization

Organize your saved programs with tags and find them quickly with search and filters. Build a personal library of code snippets and solutions.

No Account Required

Start writing and running code immediately. No sign-up, no email, no credit card. Create a free account later only if you want to save your work.

Explore more programming languages

myCompiler supports 27+ languages. Switch between them anytime. All free, all in one place.

View all 27+ languages

Frequently asked questions

Common questions about using the online SQL compiler, playground, and code runner.

Yes! myCompiler is completely free for all supported languages including SQL. There are no subscriptions, no premium tiers, and no hidden costs. Every feature is available at no charge.

myCompiler keeps its SQL environment up to date. You can see the exact version on the language details section of this page. We regularly update all language runtimes to their latest stable versions.

myCompiler runs SQLite, which supports standard SQL operations including CREATE TABLE, INSERT, SELECT with JOINs, UPDATE, DELETE, and more. Each session starts with a fresh database.

Simply open the SQL editor, write or paste your code, and click the Run button. Your code will be executed on our servers and the output will appear in the terminal panel within seconds.

Yes. Click Save to store your program. You will receive a unique URL that you can share with anyone. Recipients can view, fork, and run your code.

Yes. myCompiler supports multi-file projects. You can create, rename, and delete files in the sidebar. This lets you organize your SQL code just like in a local IDE.

Yes. All code runs in isolated containers on our servers. Each execution gets its own sandboxed environment that is destroyed after completion. Your code cannot affect other users or our infrastructure.

Yes. myCompiler has a responsive design optimized for phones and tablets. You can write and run SQL code on the go. The mobile interface uses tabs for switching between the editor, output, and file panels.

Yes. Click the Input tab in the bottom panel, type or paste your input data, then click Run. Your program will read from the input you provided.

Execution is fast. Code runs on our optimized cloud infrastructure and output typically appears within seconds. Execution time depends on the complexity of your program.

Yes. myCompiler provides an embed feature. You can copy an iframe snippet and paste it into your website, blog, or documentation. Visitors can edit and run code directly on your page.

myCompiler supports common editor shortcuts including Run (Ctrl/Cmd+Enter), Save (Ctrl/Cmd+S), Find (Ctrl/Cmd+F), and more. See the keyboard shortcuts section on this page for the full list.

No. myCompiler requires an internet connection because code is compiled and executed on our cloud servers. The editor itself loads in your browser, but running code requires connectivity.

myCompiler offers a fast, free, zero-setup environment with a modern code editor, multi-file support, dark mode, and instant sharing. It is ideal for learning, prototyping, interviews, and sharing code examples.

Yes. myCompiler is great for practicing algorithms and coding problems. You can write SQL code, provide custom input, and test your solutions instantly. Save your work and come back to it anytime.

Use print statements or console output to trace your program's behavior. myCompiler shows all standard output and error messages in the terminal panel. Error messages include line numbers to help you locate issues.

Ready to write SQL code?

Open the free SQL playground and start coding immediately. No downloads, no account required.

Start coding in SQL

Free · No sign-up required · sqlite3 3.45.1