What is the main advantage of using a database view?

The main advantage of using a database view is that it can improve query performance by simplifying complex queries. Views are essentially stored queries that encapsulate one or more tables. They provide a way to present data in a specific format without requiring users to write complex SQL commands every time they want to access that data.

By creating a view, you can combine several tables or aggregate data in a user-friendly way, which can streamline operations. When users query a view instead of the underlying tables, it can also reduce the complexity of the SQL they need to write, thereby making data access more efficient and less error-prone. This can be especially beneficial when dealing with complicated joins or calculations, allowing users to focus on the results rather than the underlying complexity of the queries.

While securing sensitive information and temporary storage are important features of views, the primary function that enhances performance is the simplification of these queries. Thus, using views effectively can lead to more efficient data retrieval and analysis.