All database operations—like creating tables or inserting data—are performed by executing SQL statements through the .
To retrieve data, use a SELECT statement. After executing the query, you can use fetchone() to get one row or fetchall() to get a list of all rows.
Epilogue: Leo eventually taught a lunch-and-learn called "SQLite for the Spreadsheet-Weary." Margaret attended. She now has her own company.db on her laptop. And she no longer uses the word "FINAL" in file names. sqlite3 tutorial
SQLite is a lightweight, self-contained, serverless, zero-configuration, transactional SQL database engine. It's a popular choice for many applications, including mobile apps, web browsers, and embedded systems, due to its reliability, ease of use, and small footprint. In this SQLite3 tutorial, we'll cover the basics of SQLite, its features, and provide a step-by-step guide on how to get started with SQLite.
SELECT c.name, SUM(s.quantity) as total_quantity FROM sales s JOIN customers c ON s.customer_id = c.id WHERE s.product_id = 7 AND s.sale_date BETWEEN '2024-07-01' AND '2024-09-30' GROUP BY c.name ORDER BY total_quantity DESC LIMIT 1; name TEXT NOT NULL
CREATE TABLE users ( id INTEGER PRIMARY KEY, name TEXT NOT NULL, email TEXT NOT NULL );
CREATE INDEX idx_users_email ON users (email); email TEXT NOT NULL )
Before we dive into the tutorial, let's cover some basic SQLite concepts:
