Here are a few sample SQL exercises with solutions:
SELECT e.name, o.order_date, o.order_total FROM employees e JOIN orders o ON e.id = o.employee_id; bai tap sql co loi giai pdf
Join the “employees” table with the “orders” table on the “employee_id” column. Retrieve the employee names, order dates, and order totals. Here are a few sample SQL exercises with
SQL Exercises with Solutions PDF: A Comprehensive Guide** One of the most effective ways to improve
CREATE TABLE employees ( id INT PRIMARY KEY, name VARCHAR(255), department VARCHAR(255), salary DECIMAL(10, 2) );
SELECT name, salary FROM employees WHERE department = 'Sales';
SQL (Structured Query Language) is a fundamental skill for anyone working with databases, and practice is key to mastering it. One of the most effective ways to improve your SQL skills is by working through exercises and problems. In this article, we’ll provide you with a comprehensive guide to SQL exercises with solutions in PDF format.