ODP.NET Oracle.DataAccess ArrayBindCount OUT Array parameters exception handling - arrays

Question

my scenario:
helper = new OracleHelper();
helper.CreateAndOpenConnection();
//cmd = new OracleCommand("PCK_JOBS.ARRAY_INSERT", helper.OracleHelperConnection);
cmd = new OracleCommand("PCK_JOBS.SCALAR_INSERT", helper.OracleHelperConnection);
cmd.CommandType = CommandType.StoredProcedure;
cmd.BindByName = true;
cmd.ArrayBindCount = 3;
var paramNames = new OracleParameter();
paramNames.ParameterName = "P_JOB_TITLE";
paramNames.Size = 3;
paramNames.OracleDbType = OracleDbType.Varchar2;
paramNames.Value = new string[3] { "1", "2", "3" };
cmd.Parameters.Add(paramNames);
paramNames = new OracleParameter();
paramNames.ParameterName = "O_JOB_ID";
paramNames.Size = 3;
paramNames.Direction = ParameterDirection.Output;
paramNames.OracleDbType = OracleDbType.Int32;
paramNames.Value = new int[3] { 0, 0, 0 };
cmd.Parameters.Add(paramNames);
try
{
cmd.ExecuteNonQuery();
}
catch (Exception exc)
{
}
var outParams = cmd.Parameters[1];
when PL-SQL procedure fails for example inserting row 2, and consequently ExecuteNonQuery catch, my output parameters (outParams) are all set to 0 (init value), also for rows correctly processed by procedure.
Is there a way to handle correctly this? so having the partial OUT array parameters correctly filled?

Answer 1

This is what I was referring to in the other thread; handle the exception in the pl/sql:
create or replace
PROCEDURE TESTDATA(myArrayNo in number , myOutputArray out varchar2)
is
customException EXCEPTION;
PRAGMA EXCEPTION_INIT( customException, - 20101 );
begin
myOutputArray := chr( myArrayNo );
if mod( myArrayNo, 2 ) = 0 then
raise customException;
end if;
exception
when customException then
myOutputArray := 'I am invalid';
end TESTDATA;
but only capture expected errors here, ones that you don't want to stop the progression, if you put in a when others... then things may get hairy and hide bugs and allow bulk updates/inserts that you don't want to allow.
c# code:
...
int[] myArrayNo = new int[3]{65, 66, 67};
String[] myOutputArray ;
OracleConnection connection = new OracleConnection(connectStr);
OracleCommand command = new OracleCommand (
"TESTDATA", connection);
//insert into dept values (:deptno, :deptname, :loc)
// Set the Array Size to 3. This applied to all the parameter in
// associated with this command
command.ArrayBindCount = 3;
command.CommandType = CommandType.StoredProcedure ;
command.BindByName = true;
// deptno parameter
OracleParameter arrayNoParam = new OracleParameter("myArrayNo",OracleDbType.Int32);
arrayNoParam.Direction = ParameterDirection.Input;
arrayNoParam.Value = myArrayNo;
command.Parameters.Add(arrayNoParam);
OracleParameter arrayOutParam = new OracleParameter();
arrayOutParam.ParameterName = "myOutputArray" ;
arrayOutParam.Direction = ParameterDirection.Output ;
arrayOutParam.ArrayBindSize = new int[3] { 50, 50, 50 };
arrayOutParam.OracleDbTypeEx = OracleDbType.Varchar2 ;
command.Parameters.Add(arrayOutParam);
try
{
connection.Open();
command.ExecuteNonQuery();
myOutputArray = (String[])command.Parameters["myOutputArray"].Value ;
for (int i = 0; i < 3; i++){
Console.WriteLine("myOutputArray{0} = {1}",
i, myOutputArray[i]);
}
}
catch (OracleException e)
{
Console.WriteLine("OracleException {0} occured", e.Message);
if (e.Number == 24381)
for (int i = 0; i < e.Errors.Count; i++){
Console.WriteLine("Array Bind Error {0} occured at Row Number {1}",
e.Errors[i].Message, e.Errors[i].ArrayBindIndex);
}
}
and outputs
myOutputArray0 = A
myOutputArray1 = I am invalid
myOutputArray2 = C

Answer 2

You can also use this
cmd.ArrayBindCount = length;
Oracle.DataAccess.Client.OracleParameter P_FinVslCd = new Oracle.DataAccess.Client.OracleParameter("ic_fin_vsl_code", Oracle.DataAccess.Client.OracleDbType.Varchar2);
P_FinVslCd.Direction = ParameterDirection.Input;
P_FinVslCd.Value = ArrFinVslCd;
cmd.Parameters.Add(P_FinVslCd);