Question

inserting a date into a Pervasive PSQL v9 database from .net

Asked by: adimit

I am insertin a date into a pervaisve table. I was told that I needed to send the date as a number. For example right now it is October 8th, 2009 at 7:55 AM which translates to a value of 40094 (I don't know the exact term for the numeric format of a date). But that didn't work

The database returns error code 5 (something about an invalid database connection state). Sorry for not having the exact error messages at my disposal..

The table field type is datetime.

Is there something special that I have to do to send a timestamp to a pervasive db from .net? Are three any examples out there?

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Asked On
2009-10-08 at 04:58:05ID24795560
Tags

Pervasive

,

visual studio.net 2008

,

vb.net

Topics

.NET

,

Databases Miscellaneous

Participating Experts
1
Points
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Comments
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Answers

 

by: mirtheilPosted on 2009-10-08 at 06:03:58ID: 25524863

If you're getting a Pervasive status 5, that means duplicate key value.  
A Pervasive Datetime is both a date and a time so a .NET Datetime data type should work correctly.  
Here's a sample that I just threw together..

using System;
using System.Collections.Generic;
using System.Text;
using Pervasive.Data.SqlClient;
 
 
namespace ConsoleApplication6
{
    class Program
    {
        static void Main(string[] args)
        {
            PsqlConnection conn = new PsqlConnection("ServerDSN=DEMODATA");
            conn.Open();
            PsqlCommand cmd = new PsqlCommand();
            cmd.Connection = conn;
 
            cmd.CommandText = "create table dtTest (f1 datetime)";
            //Create the table first
            cmd.ExecuteNonQuery();
 
            //Now we can insert data
            DateTime dtValue = DateTime.Now;
 
            cmd.CommandText = "insert into dtTest (f1) values ('2009-10-08 08:00:00')";
            int iRes = 0;
            iRes = cmd.ExecuteNonQuery();
            Console.WriteLine("Records inserted: " + iRes.ToString());
 
 
        }
    }
}

                                              
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by: adimitPosted on 2009-10-08 at 11:31:58ID: 25528544

The following syntax worked for some reason. The field just could not accept anything except a numeric field for a date.        

Dim aux As Decimal

            aux = Now.ToOADate
                cmd.CommandText = "insert into dtTest (f1) values (" + aux.tostring + ")";
               

20120131-EE-VQP-002

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