Calling Database Functions

Question

Hi All,
Just wondering whether anyone has experienced problems in calling a database function. We have Forte 3.0.L.2 and Oracle 8.1.7. Here's how the function is being called:
l_tdCurrentStatus = (SQL EXECUTE PROCEDURE me_status.get_status(input I_MCR_ID = theMember.CurMCR.MCR_ID) ON SESSION self.DefaultDBSession);
We are using SQL EXECUTE PROCEDURE syntax to call the function since there is no specific way to call functions.
We have tried calling the function in a SELECT clause and didn't face any issues so far. But I'd like to know the right way to call a function.
Any help is greatly appreciated.
Thanks,
Madhu
Fri Feb 13 15:40:21 : Database Error: Procedure me_status.get_status was invoked with a parameter named I_MCR_ID which
h is unknown.
Fri Feb 13 15:40:21 :
Fri Feb 13 15:40:21 : USER ERROR: Procedure me_status.get_status was invoked with a parameter named
  I_MCR_ID which is unknown.
    Class: qqdb_UsageException with ReasonCode: DB_ER_PARAMETERERROR
    Error #: [801, 166]
    Detected at: qqdb_OracleData::VendorInitProcedure
    Last TOOL statement: method MemberPOM.GetMemStatusDyn
    Error Time: Fri Feb 13 15:40:21
    Server: @taz2rr, UserName: ecuser
    Database Statement: begin
      me_status.get_status(I_MCR_ID=>:I_MCR_ID);
      end;
    Exception occurred (locally) on partition "MWRouting_cl1_Part3",
      (partitionId = DD242BB0-B4AC-11D7-989B-C2D07EBCAA77:0x10435:0x1, taskId =
      [DD242BB0-B4AC-11D7-989B-C2D07EBCAA77:0x1042b:0x1.53094]) in application
      "MWRouting_cl1", pid 1036484 on node ServerNode in environment frt1ec.
    USER ERROR: Procedure me_status.get_status was invoked with a parameter
      named I_MCR_ID which is unknown.
        Class: qqdb_UsageException with ReasonCode: DB_ER_PARAMETERERROR
        Error #: [801, 166]
        Detected at: qqdb_OracleData::VendorInitProcedure
        Last TOOL statement: method MemberPOM.GetMemberStatus
        Error Time: Fri Feb 13 15:40:21
        Server: @taz2rr, UserName: ecuser
        Database Statement: begin
          me_status.get_status(I_MCR_ID=>:I_MCR_ID);
          end;
        Exception occurred (locally) on partition "MWRouting_cl1_Part3",
          (partitionId = DD242BB0-B4AC-11D7-989B-C2D07EBCAA77:0x10435:0x1,
          taskId = [DD242BB0-B4AC-11D7-989B-C2D07EBCAA77:0x1042b:0x1.53094]) in
          application "MWRouting_cl1", pid 1036484 on node ServerNode in
          environment frt1ec.

Answer 1

Hello Madhu,
     The best to do this is:
l_intmcrid : integer;
l_intmcrid = theMember.CurMCR.MCR_ID;
l_tdCurrentStatus : TextData;
SQL EXECUTE PROCEDURE me_status.get_status(l_intmcrid) ON SESSION self.DefaultDBSession);
If you want to get some kind of information out from the procedure then you will need to make a output variable on the procedure:
SQL EXECUTE PROCEDURE me_status.get_status(l_intmcrid, output l_tdCurrentStatus) ON SESSION self.DefaultDBSession);
This is the only way I know to call Oracle procedure. There are many examples in the CSAPOM project.
ka