Advantages of Guid in SQL Server
- It helps to keep the information safe from public interfaces such as URLs. For instance, it is easy to discover that there will be authors with IDs 101, 102, and so on if you have the URL https://www.example.com/author/100/. However, that is not feasible with GUID, https://www.example.com/author/E4CD02B7-5D56-403D-9041-CC4F3851E751/.
- As it is globally unique it allows to merge data from different servers with ease.
What is a GUID in SQL Server?
Globally Unique Identifiers, or GUIDs, are 16-byte (128-bit) binary data types in SQL Server that contain values and are represented by unique identifiers. Each table modeling procedure starts with a business key, surrogate key, identity key, etc. An increasingly distinct identity is required when common business entities need to be joined for data storage and analytics.
GUIDs are utilized in these situations since they are distinct for all servers, databases, and tables. Furthermore, when compared to other data formats, GUIDs might be somewhat large.