9. Data Validation Using SQL for Testing | Ensuring Data Accuracy & Integrity

YouTube Excerpt: Welcome to the ninth video in our SQL for Testers & Developers | Beginner-Friendly Guide playlist! 🚀 In this video, you'll learn how to validate data using SQL to ensure accuracy, integrity, and consistency in databases. We’ll cover: ✅ How to verify inserted, updated, and deleted data ✅ Writing queries to check constraints, duplicates, and missing values ✅ Using COUNT, GROUP BY, HAVING, DISTINCT for validation ✅ Common SQL techniques for test case creation 📌 Data validation is a crucial skill for software testers, helping to catch defects early and improve application reliability. 💡 Don't forget to like, share, and subscribe for more SQL tutorials! Have questions? Drop them in the comments below! ⬇️ #SQL #DataValidation #SoftwareTesting #DatabaseTesting #QA #SQLForBeginners #AutomationTesting #DataIntegrity #gntcreator ========================================================= SQL QUERIES from this video: CREATE TABLE orders ( order_id INT PRIMARY KEY, customer_name VARCHAR(50), order_date DATE, total_amount DECIMAL(10,2), status VARCHAR(20) ); INSERT INTO orders (order_id, customer_name, order_date, total_amount, status) VALUES (1, 'John Doe', '2025-02-15', 100.50, 'Completed'), (2, 'Alice Smith', '2025-02-16', 200.75, 'Pending'), (3, 'Bob Johnson', '2025-02-17', NULL, 'Completed'), (4, 'Emma Brown', '2025-02-18', 150.00, 'Shipped'), (5, 'John Lawson', '2025-02-19', -10.00, 'Completed'), (6, 'Eric Brown', '2025-01-20', 100.00, 'UNKNOWN'); =========================================================

Welcome to the ninth video in our SQL for Testers & Developers | Beginner-Friendly Guide playlist! 🚀 In this video, you'll learn how to validate...

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