public void StoredProcedureExample(TdCommand command)
{
     // The procedure will have an output parameter that is an interval
     command.CommandText = "StoredProcedureExample";
     command.CommandType = CommandType.StoredProcedure;

     // StoredProcedureExample listing
     // replace procedure dotnetvs.StoredProcedureExample (out p1 Interval Year(4) To Month)
     // begin
     // declare Today Date;
     // declare StartDate Date;
     // select Date into Today;
     // set StartDate = Date '2008-09-21';
     // set p1 = (Today - StartDate) Year(4) To Month;
     // end;

     // The parameter is a IntervalYearToMonth TdType
     command.Parameters.Add(null, TdType.IntervalYearToMonth 0, ParameterDirection.Output,
         true, 0, 0, null, DataRowVersion.Default, null);

     command.ExecuteNonQuery();

     // GETTING THE DATA FOR THE PARAMETER USING THE CONNECTION STRING
     // ATTRIBUTE EnableTdIntervals

     // Connection String Attribute set before opening connection -
     // EnableTdIntervals=true

     // ProviderSpecificValue is accessed to retrieve the data being
     // returned for the output parameter as a provider specific type.

     TdIntervalYearToMonth resultAsInterval = command.Parameters[0].ProviderSpecificValue;

     // The Value property always returns the data as the .NET System type
     // regardless of the EnableTdIntervals attribute setting.

     String resultAsString = command.Parameters[0].Value;

     // Connection String Attribute set before opening connection -
     // EnableTdIntervals=false

     // ProviderSpecificValue is accessed to retrieve the data being
     // returned for the output parameter as a .NET System type for backward compatibility.

     String resultAsString = command.Parameters[0].ProviderSpecificValue;

     //The Value property always returns the data as the .NET System type
     //regardless of the EnableTdIntervals attribute setting.

     resultAsString = command.Parameters[0].Value;

}