Writing to an operating system file using the SQL Server SQLCLR

The solution is to create a stored procedure that is implemented in the SQLCLR, which allows writing code in .Net languages and running them within SQL Server. Stored procedures can be written in C#, VB.Net or C++ and the compiler produces an assembly, which is the code compiled into .Net Intermediate Language (IL). The assembly is then loaded into SQL Server and a stored procedure is defined to call one of the static methods in the assembly. When the stored procedure is invoked by a T-SQL EXECUTE statement the .Net assembly is loaded, Just-in-Time (JIT) compiled into machine code and the machine code is loaded into SQL Server's memory. SQLCLR code is similar to extended stored procedures and it is intended to replace extended stored procedures when that feature is phased out of SQL Server in a future release.

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