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Pervasive SQL parameter Criteria "?" identifier

Posted on 2009-04-09
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Last Modified: 2012-05-06
I am connecting to a Pervaive 10 DB through VS 2008 (dataset)  All is working fine, but when I have more than 1 filter, all I can see is "?" for the paramater prompt.  Is there a way to Identify is like SQL server or Access like "@Param1" <-  does not work BTW.

Thanks.
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Question by:vwalla
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mirtheil earned 1000 total points
ID: 24109300
Nope. PSQL uses the "?" for it's parameter identifier.  
Attached is a code sample using C# and the PSQL ADO.NET provider.


using System;
using Pervasive.Data.SqlClient;
 
namespace PsqlParamTest
{
	class PsqlParamTest
	{
		[STAThread]
		static void Main(string[] args)
		{
			try
			{
				PsqlConnection con = new PsqlConnection("ServerDSN=demodata;ServerName=localhost");
				con.Open();
				PsqlCommand cmd = new PsqlCommand("CREATE TABLE PsqlParamDate ( f1 char(10), f2 LongVarChar)",con);
				int iRes = 0;
				iRes = cmd.ExecuteNonQuery();
				Console.WriteLine("Records affected: {0}",iRes);
				cmd.Dispose();
				PsqlCommand cmd1 = new PsqlCommand("INSERT INTO lvctest (f1,f2) values ( ?,?)",con);
				PsqlParameter param1 = new PsqlParameter("@param1", PsqlDbType.Char);
				param1.Value = "1234";
				cmd1.Parameters.Add(param1);
				PsqlParameter param2 = new PsqlParameter("@param2", PsqlDbType.LongVarChar);
				string sTemp = "";
				sTemp = "Test Value";
				
				param2.Value = sTemp; 
				cmd1.Parameters.Add(param2);
				iRes = cmd1.ExecuteNonQuery();
				Console.WriteLine("Records affected: {0}",iRes);
				cmd1.Dispose();
				con.Close();
				con.Dispose();
			}
			catch (Exception ex)
			{
				Console.WriteLine(ex.ToString());
			}
		}
	}
}

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Author Closing Comment

by:vwalla
ID: 31568610
That's what i thought.  Get's confusing sometimes what order I am putting it all in.
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