The vector data type in Azure SQL Database has now gone into Public Preview.
With the ever increasing integration with AI and Machine Learning (ML) it’s important to be able to consume and handle vector data. More information is available in this announcement.
And the reference for the T-SQL and data type is available here.
Vector functions (Transact-SQL) – SQL Server | Microsoft Learn
Vector data type (preview) – SQL Server | Microsoft Learn
VECTOR public preview Azure SQL Database