DatSet to DataTableReader in C#

I have fetched data from database as a complete dataset which has only one table in it.

Made a DataTableReader from it and it is working as same as DataReader.

Simple Example Below.

DataBase.cs

public static class DataBase

{

private static VerticaConnection vConnection = null;

private static VerticaCommand vCommand = null;

private static VerticaDataAdapter vAdapter = null;

string private static void GetConnection()

{

GetAppSettings(); //get connection string from config

vConnection = new VerticaConnection(<connectionstring>);

vCommand = new VerticaCommand();

vAdapter = new VerticaDataAdapter(vCommand);

}

public static System.Data.DataSet getData(string query)

{

try{

GetConnection();

vCommand.CommandText = query;

vCommand.Connection = vConnection;

vAdapter.SelectCommand = vCommand;

System.Data.DataSet ds = new System.Data.DataSet();