connect an 'ODBC' database,and eventually leaves it open for further queries,
the connection may send message in the native language if 'stacomiR' package is in use
signature(object = "RequeteODBC")
connect an 'ODBC' database,performs an sql request
signature(object = "RequeteODBCwhere")
connect an 'ODBC' database,performs an sql request with where clause
signature(object = "RequeteODBCwheredate")
connect an 'ODBC' database,performs an sql request with where clause for an interval