Call Oracle package function using Odbc from C#

Question

I have a function defined inside an Oracle package:

CREATE OR REPLACE PACKAGE BODY TESTUSER.TESTPKG as
  FUNCTION testfunc(n IN NUMBER) RETURN NUMBER as
  begin
         


        

Answer 1

I think you should consider using the Oracle Client instead.

And if you choose ODBC to have just to create a DSN and then connect to it to be somehow database agnostic, consider using Enterprise Library Data Access Application Block.

Answer 2

try

OdbcCommand command = new OdbcCommand("begin ? := TESTUSER.TESTPKG.testfunc(?) end;", connection);

Answer 3

In the past I would use something like to following for the command string:

"{? = CALL JF_TESTUSER.TESTPKG.testFunc(?)}"

See the following article for more information

Answer 4

I managed to call the package function like this:

command.CommandText = @"begin
    :ret := ILMTEST.testpkg.testfunc(:n);
end;";
command.CommandType = System.Data.CommandType.Text;