Transact-SQL (T-SQL) is a set of programming extensions from Sybase and Microsoft that add several features to the Structured Query Language (SQL), including transaction control, exception and error handling, row versioning, and extensions for stored procedures and triggers.
There is not a lot of information available on "write t sql services." However, from what can be gathered, it seems that T SQL is a type of database programming language used by Microsoft. Services that use T SQL include: SQL Server, Azure SQL Database, and Azure SQL Data Warehouse.
This article has provided an overview of how to write T-SQL Services. While there is no one-size-fits-all answer to this question, the tips and tricks provided in this article should help you get started on writing your own T-SQL Services.