What is the role of an index in database management systems?

What is the role of an index in database management systems?

Hey Brett

An index in a database acts as a roadmap, enhancing query speed by establishing a distinct structure tailored for brisk data retrieval using specific columns or their combinations. While it accelerates search operations, it’s worth noting that creating and maintaining indices incurs overhead, especially during data insertion or modification. Thus, it’s essential to strike a balance between indexing needs and system performance.