Database query results

Question

I have made a database query:
try{
java.lang.Class.forName("oracle.jdbc.driver.OracleDriver");
Connection con=DriverManager.getConnection("jdbc:oracle:abc@abc","login","pwd");
HashMap params=new HashMap();
q=new Query("CORE_SYSTEM/TRN_SHORD_DESC",true);
dbr=q.executeQuery(params,con);
taQueryOut.setText(""+q);
taQueryOut.append(""+dbr);
}catch(Exception e){
e.printStackTrace();
} // end try-catch
The code is not important, it works.
What methods are there for me to use for printing out the number of results returned etc. A link to a reference material would be handy too. Note that the database used is Oracle, so if there are any ora-specific functions available, good.

Answer 1

This is the technique that I use to count rows:
Quick trick that I use is
1. make sure that your Statement is type_scroll_insensitive:
connection.createStatement(ResultSet.TYPE_SCROLL_INSENSITIVE,
ResultSet.CONCUR_READ_ONLY);2. move your cursor to the last row(after executing your query)
resultset.last();3. get the row number:
int numberOfRows = resultset.getRow(); /*returns the number of rows*/4. set the cursor back to the beginning:
resultset.beforeFirst();5. ready to process the rows as usual.
This technique has a drawback though:
a scrollable resultset has less performance than non-scrollable
hope this might help,
Jamie