In your projects, do you use clustered indexes or nonclustered indexes, and why?

I use both clustered and nonclustered indexes, depending on the situation. I typically use a clustered index on a table's primary key or another column where data is often retrieved in a specific order, as it determines the physical order of the data and speeds up range queries. For nonclustered indexes, I use them on columns frequently searched or filtered but not necessarily sorted. This allows for quick lookups and efficient data retrieval without altering the physical order of the table. The combination of both types of indexes helps optimize query performance based on the specific needs of the application