Free Coupon Code SQL & Database Design Practice Test 100% OFF

Udemy Free coupon code for SQL & Database Design Practice Test course taught by Aqib Chaudhary, which has 2,711 students and is rated 4.2 out of 8 votes. This course is about in English and was updated on February 06, 2026. You can use this Udemy course with a free certificate and find the coupon at the bottom of this page.

C++ OOP Mastery: Practice Tests on Inheritance, Polymorphism, Abstraction, and Encapsulation deep dives.

Are you ready to truly test your knowledge of SQL and Relational Database Design?

This comprehensive practice test course is designed to solidify your understanding and prepare you for certification exams or technical interviews.

Course Overview

This course provides multiple full-length practice exams simulating real-world technical assessments. You will be challenged on both theoretical concepts of database design and practical application of complex SQL syntax. We cover everything from basic SELECT statements to advanced topics like transaction isolation levels and optimization strategies.Each practice test is timed to mimic exam conditions, ensuring you build both speed and accuracy. Crucially, every question comes with a detailed explanation, clarifying why the correct answer is right and why the incorrect options are wrong. This process transforms taking tests into a powerful learning experience.

Key Topics Covered

• Data Manipulation Language (DML): Complex Joins (INNER, LEFT, RIGHT, FULL), Subqueries, Aggregate functions, GROUP BY, HAVING.

• Data Definition Language (DDL): Creating tables, defining Constraints (PRIMARY KEY, FOREIGN KEY, CHECK, UNIQUE), and managing indexes.

• Normalization: Identifying and correcting design flaws up to 3rd Normal Form (3NF).

• Advanced Concepts: Transactions, ACID properties, views, stored procedures, and basic performance tuning.

Unique Value Proposition

Unlike simple quiz apps, these exams are meticulously crafted by industry experts to reflect the difficulty and scope of professional assessments. By the end of this course, you won't just know SQL; you'll be confident in your ability to apply robust database design principles under pressure.