💾 Sql-Server-Tutorials

Welcome to Sql-Server-Tutorials — a practical and hands-on SQL Server learning repository!
This project is designed for students, developers, and anyone who wants to strengthen their SQL Server knowledge with clear examples and real-world scenarios.

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🚀 About This Project

This repository contains a collection of carefully organized examples for various SQL Server topics.
Each topic is structured into separate folders with .sql scripts to help you understand, practice, and master the concepts in an efficient and straightforward way.

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📚 Topics Covered

Here’s a breakdown of the concepts and techniques included in this tutorial repository:

• 🔢 Aggregate Functions — Learn how to summarize your data using SUM(), AVG(), COUNT(), MAX(), and MIN().
• 🎯 Case, NullIF & Coalesce — Master conditional expressions and null handling.
• 🏗️ Data Definition — Understand table creation, alteration, and deletion.
• 🔀 EXCEPT, UNION, INTERSECT — Practice combining and filtering datasets.
• 🧮 Group By — Group and summarize your query results.
• ⚡ Indexes — Improve query performance using indexing techniques.
• 🔗 Join Tables — Learn how to combine data from multiple tables.
• 🔍 LIKE & DISTINCT — Perform pattern matching and remove duplicates.
• 🧠 Logical Operators — Use AND, OR, NOT for logical control.
• ✍️ Modifying Data — Insert, update, and delete data effectively.
• 📄 OFFSET & FETCH — Implement pagination in SQL Server.
• 🧹 Order By — Sort your query results.
• 🔄 Pivot & Unpivot — Reshape your data by rotating rows and columns.
• 🔎 Search Operators — Apply IN, BETWEEN, LIKE for advanced filtering.
• ⏰ SQL Server Date and Time Functions — Manipulate dates and times.
• ➗ SQL Server Mathematical Functions — Perform mathematical operations.
• 🧵 SQL Server String Functions — Process and manipulate string data.
• ⚙️ SQL Server System Functions — Access metadata and system info.
• 🪟 SQL Server Window Functions — Perform advanced data analysis.
• 💾 Stored Procedures — Encapsulate business logic for reuse.
• 🔍 Sub Query — Use nested queries for dynamic filtering.
• 💳 Transactions — Ensure data integrity using transaction control.
• 💣 Triggers — Automate actions on table events.
• 🧠 User-Defined Functions — Create custom reusable SQL logic.
• 👓 Views — Simplify complex queries using virtual tables.
• 🛡️ TRY...CATCH — Handle errors in SQL Server gracefully.

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💡 How to Use This Repository

1. Clone this repository to your local machine.
2. Open the .sql files with SQL Server Management Studio (SSMS).
3. Connect to your test database (for example: dbshop__DjiKala).
4. Run, analyze, and modify the scripts to enhance your understanding.

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🌟 Why This Repository?

• Practical, real-world query examples.
• Structured and organized learning path.
• Great for interviews and revision.
• Beginner to intermediate level friendly.

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🤝 Contribution

Pull requests are welcome!
If you have ideas for new examples or better solutions, feel free to contribute.

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⭐ Support

If this project helped you, please consider giving it a ⭐ on GitHub!
If you have questions or suggestions, open an issue — I’ll be happy to help!

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Thanks for checking out Sql-Server-Tutorials —
Keep practicing, and happy learning! 🎯

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👨‍💻 Author

Created by mehranmohammadiii • GitHub • LinkedIn