What's inside an APEX URL?

As a review, an APEX URL has this form, in three general sections, separated by the URL's last-slash (/), "a f?p=" tag and a dot (.):

domain_address / f?p= screen . values

After the f?p= clause we have these subparts:

page_to_invoke : data_values

(The URL page variable data can also be protected by using page computations in lieu of passing them in the URL. See the book "Easy Oracle HTML-DB Application Express " discussing creating Page Processing Computations.)

Here is a simple page invocation, simply specifying the APEX screen to invoke by passing the application_nbr and page_nbr:

www.ciaa.org/pls/f?p=2400:1000

After the page and session information we see more colon-delimited values, as show below:

www.ciaa.org/pls/f?p=303:999:663553::NO::F660

So, the whole call now looks like:

domain_address / page_to_invoke . data_values

Within the page_to_invoke construct we have these three values:

application_nbr : page_nbr : session_nbr

Hence, the whole URL is now in the form:

address /
application_nbr :
page_nbr :
session_nbr .
data_values

Finally, example data values are shown in the Oracle APEX user guide shows this:

.::NO:6003:MY_ITEM1,MY_ITEM2,MY_ITEM3:1234,,5678

This colon-delimited format suggests six areas in the data values section:

1. . (dot)       = start of passed values

2. :             = unused positional parm #1

3. :             = unused positional parm #2

4. :NO           = third positional indicating
                   nodebug (hide debug messages)

5. {1-n}varnames = Repeating char names
                   of variables

6. {1-n}values   = repeating groups of values,
                   one for each varname

APEX support:

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APEX book and code samples:

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