How can I explain the importance of indexed fields in the context of Salesforce?

In the context of Salesforce, the indexed fields in Salesforce can play an important role in the improvement of the performance of queries and reports by enabling faster data retrieval. The indexes are the data structures that can help in smoothly locating and even retrieving records based on specific field values. When any field is indexed, Salesforce would create an index entry for every unique field value which would allow queries to quickly identify matching records. You can explain the following points to your new colleague:-

Indexed fields can certainly improve the significance of the performance of queries.

It can also impact positively the performance of reports which includes filters or groupings based on the indexed fields.

It is very essential to highlight that Salesforce can impose limits on the number of indexed fields per object.

The users should keep in mind which fields are to be indexed and which are not.

The users should emphasize the importance of regularly monitoring the performance of queries and reports and adjusting indexing strategies as needed.