please forget that one :-)
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Call .NET (2003) function from MS SQL 2000 User Defined Function (UDF)
It seems obvious that SQL-DMO comes into play. But before I bite off all that for the first time, is this a reasonable idea?
I have a VB.NET function that RC4-encrypts/decrypts values.
I want to call it from a SQL 2000 UDF as in:
Create Function dbo.udfDecodeSSN
(
@ID BigInt
)
Returns VarChar(9)
As
Return
(
Select
DoRC4 ( dbo.Employee.SSN ) as SSN /* Note the function call here */
From
dbo.Employees
Where
dbo.Employees.ID = @ID
)
/* Something like that */
DoRC4() is a VB.NET (2003) function. The password/encryption key is embedded in it and the .dll created from it is required to run the UDF.
So, is that going to work, and if so, could I get a clue as to calling my .NET function from the UDF?
THANKS!
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Answers
I thought that sp_OACreate was designed to allow us to call external DLL/ActiveX [functions/methods/classes
As in this example from the EE link below it:
EXEC @hr = sp_OACreate 'DynCrypto.Crypto', @object OUT
http://www.experts-exchang
Where 'DynCrypto.Crypto' is such and ActiveX component.
>> you cannot call a .NET function from a UDF in SQL Server 2000.
What am I missing here?
Thanks!
>I thought that sp_OACreate was designed to allow us to call external DLL/ActiveX [functions/methods/classes
yes, but you cannot call those procedures from within functions.
if you really want to use the external functions, you have to use a stored procedure instead of a stored function.
no way around that.
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by: angelIIIPosted on 2006-05-10 at 10:24:13ID: 16650720
udf cannot be called like stored procedures, but need to be used in queries:
select * from dbo.udfDecodeSSN(2389238)