GUID>IfcGuid and back in TransactSQL

The lack of conversion functions for this in databases has been a frustration for a while, for me at least. The following is my own work, leans heavily on the published C# examples and is offered free for personal or commercial use without warranty of any kind. The functions are completely analogous to the C# examples.

IfcGuidTSQL.pdf (149.1 KB)

Would be grateful for any suggestions on improvement or news that anyone finds it useful.