fetchsize in resultset set to 0 by default

Question

I have to query a database and result set is very big. I am using MySQL as data base. To avoid the \"OutOfMemoryError\" after a lot of search I got two options:

Answer 1

Besides all you should change your query like

SELECT * FROM RandomStones LIMIT 1000;

Or

PreparedStatement stmt = connection.prepareStatement(qry);
stmt.setFetchSize(1000);
stmt.executeQuery();

To set the fetch size for a query, call setFetchSize() on the statement object prior to executing the query. If you set the fetch size to N, then N rows are fetched with each trip to the database.