1. Drilling down Restrictions on data interaction between browser and server a new connection has to be made for each interaction Solution: break up the data so that only what is needed on a single page is retrieved the details are presented by selecting an item in that page--drill-down approach Dynamic SQL statements: the master-detail approach Create the detail template Pass a parameter to the template from the master template

2. Source code for the master < CFQUERY DATASOURCE="oracle" Name="customers" > select custid, first, last from customer order by custid Customer list Customers #custid# #first# #last# Parameter syntax: ? =

3. Source code for the detail < CFQUERY DATASOURCE="oracle" Name="orders" > select first, last,orderid, orderdate, methpmt, ordersource from customer c, cust_order_v o where c.custid=#custid# and c.custid=o.custid order by orderid #first# #last# #First# #last# Order number: #orderid# Date: #orderdate# Method of payment: #methpmt# Order source: #ordersource# Parameter passed from master

4. Creating frames View both master and detail at the same time Split the window into two or more windows and control what is displayed in each Customers Step 1: Create the frame template Creates two columns, each taking up 50% of the browser’s window Creates the left frame Creates the right frame Create the initial frame Include a TARGET attribute to designate the window in which to display the result <A HREF="example4.cfm?custid=#custid#" TARGET= "details">

5. Frame example