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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 250 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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