📘 Package Overview: Advance SQL Concepts

This package is a comprehensive Advanced SQL revision and interview preparation guide that covers:

1. Analytical SQL
2. Query optimization
3. Performance tuning
4. Indexing strategies
5. CTEs & subqueries
6. Views & materialized views
7. Stored procedures
8. User Defined Functions (UDF)
9. SQL control flow
10. Dynamic SQL
11. Real-world healthcare use cases

The content is structured progressively from analytical concepts to advanced procedural SQL.