Using Visual Basic 6.0 and ADO, how can I call Oracle FUNCTIONS (not "procedures") within a package? I can either use a Microsoft or Oracle ODBC driver, but I cannot use OO4O.
Versions:
Database
-------------
Oracle Version: 9i
(with 8.1.6 driver version)
Workstation
-------------
Oracle ODBC Driver: 8.1.6
Microsoft ODBC Driver: 2.573.9030
VB: 6.0 SP3
ADO: 2.5 - 2.7
No matter what information I've found on this and other forums, I've had no success in formulating the correct ADO call. With each permutation I try, I seem to get a different error message, so I can't remember which ones I've gotten under which configurations. The end result is always an error when I call the Execute method on the command object.
Even though I have successfully connected to the database and retrieved data using dynamic SQL ("SELECT * FROM ..."), please include specific examples from connection to the execution of the Oracle function in your answer.
The Oracle functions I'm calling have return values of type INTEGER and varying input parameters. Here's an example of one:
FUNCTION fnAEOutcomeTypeAdd(
p_sTypeName IN char)
RETURN INTEGER IS
nTypeId ae_outcome_type.ae_outcome
sProcName ERROR_LOG.PROC_NAME%TYPE := 'pkgSpxLookups.fnAEOutcome
nProcLocation ERROR_LOG.ERR_LOC_ID%TYPE := 0;
BEGIN
SAVEPOINT BeginningOfFunction;
nProcLocation := 1;
select SEQ_AE_OUTCOME_TYPE.nextva
nProcLocation := 2;
insert into AE_OUTCOME_TYPE ( ae_outcome_code, ae_outcome_name)
values (nTypeId, p_sTypeName);
RETURN( nTypeId );
EXCEPTION
WHEN OTHERS THEN
--Log the error
pkgError.logError(sProcNam
nProcLocation,
null,
'Type Name='||p_sTypeName);
--Undo the effects of this function when an exception occurs
ROLLBACK TO BeginningOfFunction;
RETURN (-1);
END fnAEOutcomeTypeAdd;
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by: piomicePosted on 2003-02-11 at 16:08:54ID: 7930076
Try this code:
dim cn as new ADODB.Connection
dim cmd as new ADODB.Command
dim prm as ADODB.Parameter
cn.ConnectionString = "Driver={Microsoft ODBC for Oracle};Server=<YourServer
cn.Open
cmd.ActiveConnection = cn
cmd.CommandType = adCmdStoredProc
cmd.CommandText = "pkgSpxLookups.fnAEOutcome
Set prm = cmd.CreateParameter("Retur
cmd.Parameters.Append prm
Set prm = cmd.CreateParameter("prm1"
cmd.Parameters.Append prm
cmd.Execute , , adExecuteNoRecords