خرید و دانلود نسخه کامل کتاب Master SQL in 15 Days: The Friendly, No-Nonsense Guide to Databases and Queries

Learn SQL from scratch in just 15 days—no technical background required.Whether you’re a complete beginner curious about databases, a professional looking to add SQL to your skillset, or a student preparing for a data-focused career, this book will take you from zero to confident SQL user in just two weeks.What Makes This Book Different?Unlike dry technical manuals, Master SQL in 15 Days uses a practical, hands-on approach centered around a realistic database for “Beans & Pages”—a cozy bookshop café. Every concept is taught through real scenarios you’ll actually encounter in the workplace, from finding which books are running low on stock to analyzing customer purchase patterns.What You’ll Learn:• Days 1-5 (Foundations): Database basics, SELECT queries, filtering with WHERE, sorting with ORDER BY, and limiting results• Days 6-10 (Expanding Your Skills): Aggregate functions (COUNT, SUM, AVG), GROUP BY, HAVING, and all types of JOINs• Days 11-15 (Real-World Skills): String functions, date/time operations, subqueries, and data modification (INSERT, UPDATE, DELETE)Each Day Includes:✓ Clear learning objectives✓ Step-by-step explanations with examples✓ Memory tricks and analogies that make concepts stick✓ Common mistakes to avoid✓ Practice exercises with full solutions✓ A summary to reinforce key conceptsBy the End of This Book, You’ll Be Able To:• Write queries to extract exactly the data you need• Combine data from multiple tables using JOINs• Summarize and analyze data with aggregate functions• Modify database records safely and effectively• Read and understand SQL code in any workplace environmentPerfect For:• Complete beginners with no programming experience• Business professionals who want to query their own data• Students preparing for data science or analytics careers• Anyone who’s tried to learn SQL before and gotten stuckThe book includes a complete database setup script so you can practice every example yourself. No expensive software required—works with free database tools.Stop relying on others to pull data for you. Start your SQL journey today.