uniqueidentifier (Transact

uniqueidentifier (Transact-SQL) Applies to: SQL Server Azure SQL Database Azure SQL Managed Instance Azure Synapse Analytics Analytics Platform System (PDW) SQL analytics endpoint in Microsoft Fabric Warehouse in Microsoft Fabric SQL database in Microsoft Fabric Is a 16-byte GUID.

In SQL server there is a type uniqueidentifier ? What is this? What does it do? What is the difference between this and using primary key
Key Details About Uniqueidentifier

Learn what the UNIQUEIDENTIFIER data type is and how it can help you create unique values across space and time in SQL Server. See examples of how to use the NEWID() and NEWSEQUENTIALID() functions to populate UNIQUEIDENTIFIER columns.
Learn how to create and compare GUID values in the .NET Framework Data Provider for SQL Server, which are represented by the uniqueidentifier data type.

UUIDs in SQL Server
UUIDs ( UNIQUEIDENTIFIER In SQL Server, provide a reliable way to ensure uniqueness across distributed databases. While they introduce some performance overhead, they are indispensable in scenarios ...
The UNIQUEIDENTIFIER data type in SQL Server holds 16-byte autogenerated GUID numbers. GUIDs are a globally unique identifiers that are commonly used as primary key values.







