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Connect Oracle in ASP.NET Without Oracle drivers

Posted on 2008-10-07
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Last Modified: 2012-05-05
My boss asked me to change this class to connect to the oracle database without the oracle drivers.
I need to do the connection, i think this is possible
i attach the code so u can see and give me a hint
note. i don't know much about C# but i appreciate any help

TIA
using System;

using System.Collections.Generic;

using System.Collections;

using System.Linq;

using System.Text;

using OlapSaleManager.Entity.dba;

using System.Data.OleDb;
 

namespace OlapSaleManager.Services

{

    public class ProcessService

    {

        public static void startProcess(String connectionString)

        {

            List<Job> jobs = ProcessService.liveJobs(connectionString);
 

            // Si no tiene jobs levanto

            if (jobs.Count == 0)

            {

                // Crea conexion

                OleDbConnection remoteConnection = new OleDbConnection(connectionString);
 

                // Abre conexion

                remoteConnection.Open();
 

                // Crea Comando

                OleDbCommand cmdSelectJobs = remoteConnection.CreateCommand();

                cmdSelectJobs.CommandText = "BEGIN  proventacs.olap_sales.start_system;end;";
 

                // Ejecuta comando

                cmdSelectJobs.ExecuteNonQuery();

                

                // Finaliza

                remoteConnection.Close();

            }
 

        }
 

        public static void killJob(String connectionString,String jobNumber)

        {

            // Crea conexion

            OleDbConnection remoteConnection = new OleDbConnection(connectionString);
 

            // Abre conexion

            remoteConnection.Open();
 

            // Crea Comando

            OleDbCommand killJob = remoteConnection.CreateCommand();

            killJob.CommandText = "BEGIN dbms_job.broken(" + jobNumber + ", TRUE);dbms_job.remove(" + jobNumber + ");end;";
 

            // Ejecuta comando

            killJob.ExecuteNonQuery();
 

            // Finaliza

            remoteConnection.Close();

        }

        public static void stopProcess(String connectionString)

        {

            List<Job> jobs = ProcessService.liveJobs(connectionString);
 

            // Si no tiene jobs levanto

            if (jobs.Count > 0)

            {

                // Crea conexion

                OleDbConnection remoteConnection = new OleDbConnection(connectionString);
 

                // Abre conexion

                remoteConnection.Open();
 

                // Crea Comando

                OleDbCommand cmdSelectJobs = remoteConnection.CreateCommand();

                cmdSelectJobs.CommandText = "BEGIN proventacs.olap_sales.stop_system;end;";
 

                // Ejecuta comando

                cmdSelectJobs.ExecuteNonQuery();
 

                // Finaliza

                remoteConnection.Close();

            }

        }
 

        public static List<Job> liveJobs(String connectionString)

        {

            List<Job> jobs = new List<Job>();
 

            OleDbConnection remoteConnection = new OleDbConnection(connectionString);
 

            remoteConnection.Open();
 

            OleDbCommand cmdSelectJobs = remoteConnection.CreateCommand();

            cmdSelectJobs.CommandText = "SELECT * FROM DBA_JOBS";
 

            OleDbDataReader drJobs = cmdSelectJobs.ExecuteReader();
 

            while (drJobs.Read())

            {

                jobs.Add( new Job(

                    System.Convert.ToInt32( drJobs[0].ToString()),

                    drJobs[1].ToString(),

                    drJobs[3].ToString(),

                    drJobs[4].ToString(),

                    drJobs[5].ToString(),

                    drJobs[6].ToString(),

                    drJobs[7].ToString(),

                    drJobs[8].ToString(),

                    drJobs[9].ToString(),

                    System.Convert.ToInt32( drJobs[10]).ToString(),

                    drJobs[11].ToString(),

                    drJobs[12].ToString(),

                    drJobs[14].ToString()

                    ));
 
 

            }

            drJobs.Close();
 

            remoteConnection.Close();
 

            return jobs;

        }

    }

}

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Question by:ShinyDarkStone
  • 2
4 Comments
 
LVL 5

Accepted Solution

by:
gemailj earned 250 total points
ID: 22666043
i think that there is oracle .net driver that allow you to connect directly to the oracle DB

http://www.microsoft.com/downloads/details.aspx?FamilyID=4F55D429-17DC-45EA-BFB3-076D1C052524&displaylang=en
this is .NET Managed Provider for Oracle

http://www.4guysfromrolla.com/webtech/tips/t080902-1.shtml
this is User Tips: Using the .NET Framework Data Provider for Oracle
0
 
LVL 1

Author Comment

by:ShinyDarkStone
ID: 22666394
no, i was thinking something with odbc instead oledb
but like i said, i don't know much about c# neither how to port the oledb methods to odbc.
0
 
LVL 142

Assisted Solution

by:Guy Hengel [angelIII / a3]
Guy Hengel [angelIII / a3] earned 250 total points
ID: 22672794
>no, i was thinking something with odbc instead oledb
why go back in time? oledb is better than odbc, especially supporting the newer features and larger data types...

>My boss asked me to change this class to connect to the oracle database without the oracle drivers.
you CANNOT connect to oracle without the oracle drivers (ie the oracle client).
the oracle part can be very small though: instant client:
www.oracle.com/technology/tech/oci/instantclient/index.html

>using System.Data.OleDb;
this part is contained in the .net framework, so nothing more is needed. just the right connection string
0
 
LVL 1

Author Comment

by:ShinyDarkStone
ID: 22673235
tnx, i solved it, but now, im having trouble, when i try to send the method it hangs on the remoteconnection.open() says "ERROR [IM002] [Microsoft][ODBC Driver Manager] Data source name not found and no default driver specified" i set up the conection string, but it still shows that message.
i know there is something missing, but i cant figure out what
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