主题：[求助]

老师，我这是操作别人的sql 数据库出现的错误提示，用我们的foxtable 向别人的数据库添加数据，别人的系统自己增加保存数据时出现的，并且覆盖了我的数据。有时候有，有时候没有。不明白是什么意思，请您帮忙。谢谢！

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************** Exception Text **************
System.Exception: data exists error
   at CYYFCheckupMgr.DBUtility.SqlHelper.ExecuteOraclCmd(String connectionString, String cmdText)
   at CYYFCheckupMgr.DBUtility.SqlHelper.SaveData(DataSet dsdata, String connectionString)
   at CYYFCheckupMgr.DBUtility.SqlHelper.SaveData(DataSet dsdata, String connectionString)
   at CYYFCheckupMgr.SqlDAL.DALPersonToRegister.SaveData(DataSet ds)
   at CYYFCheckupMgr.BLL.BLLPersonToRegister.SaveData(DataSet ds)
   at CYYFCheckupMgr.CustomerServiceMgr.frmItemCommend.SaveData()
   at CYYFCheckupMgr.CustomerServiceMgr.frmItemCommend.button2_Click(Object sender, EventArgs e)
   at System.Windows.Forms.Control.OnClick(EventArgs e)
   at DevExpress.XtraEditors.BaseButton.OnClick(EventArgs e)
   at DevExpress.XtraEditors.BaseButton.OnMouseUp(MouseEventArgs e)
   at System.Windows.Forms.Control.WmMouseUp(Message& m, MouseButtons button, Int32 clicks)
   at System.Windows.Forms.Control.WndProc(Message& m)
   at DevExpress.Utils.Controls.ControlBase.WndProc(Message& m)
   at System.Windows.Forms.Control.ControlNativeWindow.OnMessage(Message& m)
   at System.Windows.Forms.Control.ControlNativeWindow.WndProc(Message& m)
   at System.Windows.Forms.NativeWindow.Callback(IntPtr hWnd, Int32 msg, IntPtr wparam, IntPtr lparam)