Learn about SQL and database management.
SQL (Structured Query Language) is used to manage and manipulate databases.
Exercise: Write a SQL query to select all records from a table named "users".
SELECT * FROM users;
Learn about SQL CRUD operations: Create, Read, Update, and Delete.
Exercise: Write a SQL query to insert a new record into a table named "products".
INSERT INTO products (name, price, category)
VALUES ('Product A', 50.00, 'Electronics');
Understand SQL joins to retrieve data from multiple tables.
Exercise: Write a SQL query to join "orders" and "customers" tables.
SELECT *
FROM orders
JOIN customers ON orders.customer_id = customers.id;