What are Global ID and GUID types used for in databases?

Global ID and GUID (Globally Unique Identifier) types are specifically designed to store unique identifiers in a format that ensures their exclusivity across systems and databases. This makes them ideal for scenarios where distinct identification is required, such as tracking records in databases, which is essential for database management and maintaining data integrity.

Using a registry-style string format allows these identifiers to be unique not just within a single project or database but across multiple databases and applications globally. Their uniqueness minimizes the chances of duplication and conflicts, especially in distributed systems where different databases may be integrated. This capability is crucial for effective data management in enterprise environments.

The other options focus on storage for different types of data, such as numeric values, images, and general registry strings, which do not align with the purpose of Global ID and GUID types. Their primary function is to provide a robust and reliable method of identification rather than to serve as storage containers for those specific data forms.