You can use the SELECT INTO statement to export formatted data to a file.

Data Export with an SQL Query

The following query exports data into a file formatted in comma-separated values (CSV):

boolean ret = stat.execute("SELECT Id, Color INTO [csv://c:/Tags.txt] FROM [Tags] WHERE CustomerId = '1368175'");
System.out.println(stat.getUpdateCount()+" rows affected");

You can specify other file formats in the URI. The following example exports tab-separated values:

Statement stat = conn.createStatement();
boolean ret = stat.execute("SELECT * INTO [Tags] IN 'csv://filename=c:/Tags.csv;delimiter=tab' FROM [Tags] WHERE CustomerId = '1368175'");
System.out.println(stat.getUpdateCount()+" rows affected");