public void DoImport(string tableName, string [] mappingColumns)
{
string sourceConnectionString = _source.GetConnectionString(_source.FileName);
string sql = _source.GetSql(_source.sheetName);
DbDataReader dataReader = _dataStorage.GetExcelData(sourceConnectionString, sql);
string destinationConnectionString = _destination.GetDestinationConnectionString();
_dataStorage.WriteToServer(destinationConnectionString, tableName, dataReader, mappingColumns);
}
