How to backup oracle XE database using C# application

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Hi, I want to know how to backup oracle XE database using c# application. I've been searching and trying examples from google but didnt worked. Like this one. I dont understand some of the lines. Please give me some example of codes and its explanation. Please. Thank you very muchhhhhhhh!

C#

private void btnBackupDB_Click(object sender, EventArgs e)
    {

        DateTime Time = DateTime.Now;
        int year = Time.Year;
        int month = Time.Month;
        int day = Time.Day;
        int hour = Time.Hour;
        int min = Time.Minute;
        int second = Time.Second;
        int millisecond = Time.Millisecond;

        string path = "C:/gams_off/backup";
       // path = path + day + "-" + month + "-" + year + "-" + hour + "-" + min + "-" + second + "-" + millisecond;

        ProcessStartInfo psi = new ProcessStartInfo();
        psi.FileName = "C:/gams_off/bin/Debug/Backup/back_up.bat";
        psi.RedirectStandardInput = false;
        psi.RedirectStandardOutput = true;
        psi.Arguments = string.Format("exp USERID=gams/gams  FULL=y FILE=" + path + ".dmp CONSISTENT=y GRANTS=y BUFFER=100000 rows = Yes");
        //psi.Arguments = string.Format("exp USERID=gams/gams@XE  FILE=" + path + ".dmp TABLES=(t)");
        psi.UseShellExecute = false;

        Process process = Process.Start(psi);
        process.WaitForExit();
        process.Close();
        MessageBox.Show("Database Backup Completed Successfully");
        this.Close();
        //string sql = "BACKUP DATABASE gams to disk='C:/orabackup'";
        //db.show(sql);




    }

[Edit]Code block added[/Edit]

Posted 15-Nov-12 5:45am

Member 9372112

Updated 15-Nov-12 5:46am

Thomas Daniels

v2

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Edgar R. C. · Answer 1 · 2012-11-16T13:53:00

Try this, the code below is commented

C#

private void btnBackupDB_Click(object sender, EventArgs e)
{
    //## Settings
    //Path to store the oracle dump
    string path = @"C:\backup";
    string backupFileName = "mybackup.dmp";
    //your ORACLE_HOME enviroment variable must be setted or you need to set the path here:
    string oracleHome = Environment.GetEnvironmentVariable("ORACLE_HOME");
    string oracleUser = "sys";
    string oraclePassword = "abc";
    string oracleSID = "xe";
    //###

    ProcessStartInfo psi = new ProcessStartInfo();

    //Exp is the tool used to export data.
    //this tool is inside $ORACLE_HOME\bin directory
    psi.FileName = Path.Combine(oracleHome, "bin", "exp");
    psi.RedirectStandardInput = false;
    psi.RedirectStandardOutput = true;
    string dumpFile = Path.Combine(path, backupFileName);
    //The command line is: exp user/password@database file=backupname.dmp [OPTIONS....]
    psi.Arguments = string.Format(oracleUser + "/" + oraclePassword + "@" + oracleSID + " FULL=y FILE=" + dumpFile);
    psi.UseShellExecute = false;

    Process process = Process.Start(psi);
    process.WaitForExit();
    process.Close();
    MessageBox.Show("Database Backup Completed Successfully");
    this.Close();

}

Edgar Rocha Carvalho