Functions in Functions

Ok..

Here you can't achive it from the function directly.

If you use SQL Server 2000,

You have to use extended stored procedure

      - a com program which will evaluate the given fromula and return back the value

      - need to register that com dll on the db server

If you use SQL Server 2005,

You have to use the CLR function

      - a simple C#/VB.NET code which will evulate the expression.

Let me know the version of SQL Server.. I will try to help you on this.