Performance issue - Result set

Question

Hi,
I am facing performance problem with query execution. The code almost looks like this
Statement stmt = con.createStatement(ResultSet.TYPE_FORWARD_ONLY, ResultSet.CONCUR_READ_ONLY);
stmt.setFetchSize(0);
result = stmt.executeQuery("SELECT  name, phoneNumber from tbluser inner join tblUserDetails ON  tbluser.userid =tblUserDetails.userid WHERE ([phoneNumber] like'%123456789%')  ORDER BY [name], [userID]");This query is taking too much time from the code.The same code is taking only few seconds for execution from the query analyzer.
when I changed the result set type to TYPE_SCROLL_SENSITIVE its performance improved significantly.
Please help me to find out y why a scroll sensitive result set performs better than a forward only result set?
CAn anybody help me how to use client side\server side cursors?
I have created indexes in tables. Is there any other way to improve the performance? Thanks in advance. Any help will be greatly appreciated.
Edited by: Aryan.s on Sep 16, 2008 7:49 PM

Answer 1

Ok, if you wait many rows in the select you change
stmt.setFetchSize(0);
to
stmt.setFetchSize(50);
Then, if you use "[phoneNumber] like" the database never used the index, you need tu use "=", ">" or "<", etc, if you want the database use the index, you never use "in", "exist", "like" or function "function(column) == variable", my suggestion is:
result = stmt.executeQuery(
"SELECT name, phoneNumber " +
"from tbluser inner join tblUserDetails ON tbluser.userid =tblUserDetails.userid " +
"WHERE ([phoneNumber] = '123456789') ORDER BY [name], [userID]");
And use a mask in the input of your application (JFormattedText)