Parsing data from a text file and storing it in a database

internal class Program
    {
       //Put your database connection string here
       private static string SqlDBConnectionString="";

        private static void SaveDataToDB(DataTable DT)
        {
            using (var bulkCopy = new SqlBulkCopy(SqlDBConnectionString, SqlBulkCopyOptions.KeepIdentity))
            {
                foreach (DataColumn col in DT.Columns)
                {
                    //Here i assume that your Sql table column names matches with the DataTable column names.
                    bulkCopy.ColumnMappings.Add(col.ColumnName, col.ColumnName);//(DT.ColumnName,SQLTableColumnName)
                }

                bulkCopy.BulkCopyTimeout = 600;
                bulkCopy.DestinationTableName = "SqlTableName";
                bulkCopy.WriteToServer(DT);
            }
        }


        static void Main()
        {
            var filename = @"D:\PERSONAL\RawData" + DateTime.Now.ToString("ddMMyyyy") + ".txt";

            if (File.Exists(filename))
            {
                var DT = new DataTable();

                IEnumerable<string> TextLines = File.ReadLines(filename);

                if (TextLines != null)
                {
                    var headers = TextLines.First().Split(',');
                    foreach (var header in headers)
                    {
                        DT.Columns.Add(header);
                    }

                    var records = TextLines.Skip(1); //Skip first line as it column names
                    foreach (var record in records)
                    {
                        DT.Rows.Add(record.Split(','));
                    }

                    if (DT.Rows.Count > 0)
                    {
                        SaveDataToDB(DT);
                    }
                }
                else
                {
                    Console.WriteLine("File is empty.");
                }
            }
        }
    }