How to stop the selection of an empty table?

Hello , everyone.
I created a JTable : tableView :
tableView.setSelectionMode(ListSelectionModel.MULTIPLE_INTERVAL_SELECTION);
tableView.getSelectionModel().addListSelectionListener(this);
tableView is a empty table , that is to say , tableView.getRowCount() returns 0 .
When the table has focus, I press ENTER key , it will invoke the table's ListSelectionEvent event.
So , in the ListSelectionEvent interface:
public void valueChanged(ListSelectionEvent _e)
I call :
int selectedRow = tableView.getSelectionModel().getMinSelectionIndex();
selectedRow value will increase with ENTER key pressed each time .
My question is how to prevent from ENTER key event when a table is empty ?
Thanks in advance .

There is no table, unless you have a mapping table or an overflow segment, so the size is the bytes for the index segment. So yes, your query is probably correct. NB you will only have multiple segments with the same name, if you have partitioning, so you might not need the SUM .. GROUP BY

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