How I can take .dmp file using orcle expdp.exe using C#?

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Hi All,

How i can take backup of a specific table via expdp.exe utility using c# code?

What I have tried:

C#

string binary = System.IO.Path.Combine(AppDomain.CurrentDomain.BaseDirectory + @"ExportUtility", "expdp.exe");
            string arguments = @"UUU/PPP@orlc file=D:\testdmp\123.dmp tables=XYZ";
            ProcessStartInfo PSI = new System.Diagnostics.ProcessStartInfo(binary, arguments);
            PSI.RedirectStandardInput = true;
            PSI.RedirectStandardOutput = true;
            PSI.RedirectStandardError = true;
            PSI.UseShellExecute = false;
            Process myProcess = System.Diagnostics.Process.Start(PSI);

But im not sure about this code that is working or not.

Posted 4-Sep-16 6:28am

Indukanth

Updated 5-Sep-16 23:35pm

Nelek

v2

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Afzaal Ahmad Zeeshan 4-Sep-16 14:45pm

Why is it not working? What is it generating as the output?

1 solution

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pparya27 · Answer 1 · 2016-09-05T23:35:00

You can use the below code to create dump using "exp" and c#.
The same may work with "expdp" :

C#

protected void btnExport_Click(object sender, EventArgs e)
    {
        string batchfile = "Docs/batchfile.bat";
        string exportfile = Server.MapPath("Docs/myexport.dmp");
        string exp_cmd = "exp user/pwd@db file='" + exportfile + "' log=a.log tables=(mytable)";

        StreamWriter sw = File.CreateText(Server.MapPath(batchfile));
        sw.WriteLine("@echo off");
        sw.WriteLine(exp_cmd);
        sw.WriteLine("exit");
        sw.Close();

        System.Diagnostics.Process p = System.Diagnostics.Process.Start(Server.MapPath(batchfile));
        p.WaitForExit();
        p.Close();

        Label2.Text = "Exported to : "+exportfile;

    }