Still..Fetching Problem..Please Help

Question

Hello! Below is the code snippets of my program to test the setFetchSize() method. When run, it still retrieves all the contents of the table. I just need to retrieve say 4 items per page. Please help. Thanks.
int skucd = 0;
String skudesc = "";
Class.forName("sun.jdbc.odbc.JdbcOdbcDriver");
Connection con = DriverManager.getConnection("jdbc:odbc:dsShopCart", "", "");
Statement stmt = con.createStatement();
stmt.setFetchSize(4);
ResultSet rs = stmt.executeQuery("SELECT * FROM tblProduce");
while (rs.next())
skucd = rs.getInt("sku_code");
skudesc = rs.getString("sku_desc");
System.out.println("Sku Code-"+skucd +"/Desc-"+skudesc);

Answer 1

Using Stqtement.setFetchSize() one can only provide the JDBC driver a hint as to how many records the driver code should actually fetch from the database whenever it has reason to fetch results physically from the database and the driver is free to ignore that hint as well.
However, the point to be noted in your case is that when a JDBC driver actually fetches results from the database depends on the specific driver implementation. For example, this may happen not only when one invokes Statement.executeQuery() etc but later on, for example when one invokes some method that performs some row operation on the result set. So, using setFetchSize() one can provide a hint to the driver as to how many records to physically fetch from the database whenever there is such a need to physically fetch from the databse.
As far as I know, one has to implement some kind of paging model over the results by onseself.
If you are involved with diaplaying results on an HTML page, tis might help http://jsptags.com/tags/navigation/pager