1. As all the table rows are taken into memory, care should be taken with the query which retrieves the number of rows, as it will be very resourceful if huge set of rows is taken and the application will get very slow.

2. As rowsets will keep a connection to itself , hence the connection object will be kept at the client which make the client heavy.As it can modify data at the client side inconsistancy may arise with the server containing actual data.