Indexes and Performance Tuning

Intermediate Updated March 20, 2025

⚡ Indexes and Performance Tuning

Indexes improve query speed by reducing data scans.

| Type         | Description                                      |
|--------------|--------------------------------------------------|
| Clustered    | Sorts and stores rows in table order             |
| Non-Clustered| Separate from table; contains pointers to data   |
| Full-Text    | Supports advanced search on text fields          |
| Columnstore  | Optimized for large, analytical workloads        |

-- Create a non-clustered index
CREATE INDEX idx_Author ON Books(Author);

🧠 Tip: Use SQL Server Profiler and Database Engine Tuning Advisor for analyzing performance bottlenecks.