Create a Link using Dynamic Text and Capture Variable

Question

I am building a dynamic website using Dreamweaver CS5 with Coldfusion 9
Currently I have created a dynamic text table. The table is created by querying the Invoice table and displays the all the customers Invoices. The columns Include Invoice #, Date, Amount Paid, BalanceRemaining, Due Date. So basically lists all the invoices I have applied to the unique customer. It is pulled up using a session variable I created from the login page.
My question is this I want to make the "Invoice #" linked so when you click on it it goes to a new page and performs a new query which retrieves infro related to that specific invoice such as Services Rendered, Service Description, Date, Price, Total. I was able to create a link to the Invoice # but I am stuck trying to figure out how to capture the Unique Invoice # and apply it to the new query. Is this possible if so how?
Thanks for your help!

Answer 1

Now keep in mind I am speaking strictly from a web and SQL standpoint as I have no experience with coldfusion.
If you are able to create the link to the Invoice, I am perceiving this as the following:
Invoice
Links to
#123
page.php?invoice=123
#345
page.php?invoice=345
If your page is setup like that then you already have the data stored in the browser request with the GET method.  In PHP the equivalent is the $_GET array.  I am assuming ColdFusion has a similar array to work with forms.  Then on your following page you obviously need to check that the visitor came from the prior page with the proper permissions to ensure that someone doesn't get the address page.php?invoice=### and just guesses through and views all invoices if they are not supposed to.  Then your query would look something like the following:
SELECT * FROM invoice_table WHERE invoice_number = $_GET['invoice']
Remember this in written in PHP so yours should be a similar equivalent.
Hopefully this helps a little to get you going in the right direction.