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📌 sql-optimization – SQL Query Optimization Examples

# SQL Optimization Examples  

This repo contains examples of **SQL query optimization techniques** for better performance.  

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## 📂 Contents  
- Indexing strategies  
- JOIN optimization  
- Aggregation and grouping optimization  
- Execution plan analysis  

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## 💡 Example  

### ❌ Slow query  
```sql
SELECT * FROM Orders WHERE YEAR(OrderDate) = 2023;

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✅ Optimized query
CREATE INDEX IX_Orders_OrderDate ON Orders(OrderDate);
SELECT * FROM Orders WHERE OrderDate BETWEEN '2023-01-01' AND '2023-12-31';

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📫 About Me

Backend Developer with strong skills in C#, .NET, SQL optimization, and performance tuning.