What is the function of a Reader in a database?

The correct function of a Reader in a database context is to only view data that is shared with them. Readers typically have read-only access, meaning they cannot make any changes to the database or its structure. This role is important for maintaining data integrity because it allows users to access information without the risk of accidental modification or deletion of existing records.

This access level is crucial in collaborative environments where different users need to share data safely. It ensures that while important data can be disseminated among users for viewing and analysis, the underlying data remains secure from alterations. This is particularly important in situations where data accuracy and consistency are paramount, such as in fields like GIS, where analysis and reporting often rely on precise datasets.