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Don Burleson Blog 







Oracle Application Express (APEX): Passing values between screens

Oracle Tips by Burleson Consulting

It's easy to understand the contents of a APEX URL.  The APEX documentation shows an example of passing values between screens:

Passing a single item in APEX

It clears existing information and sets the item's value (typically a primary key).


Specifically this example:

  • Runs page 6003 of application 6000 and use the current session ID

  • Indicates to not show debug information (NO)

  • Clears all values maintained by the current session's cache for items on page 6003

  • Sets the session state of an item called MY_ITEM to the value 1234

Passing multiple screen values in APEX

This example is similar to the previous one except it passes values to multiple items.


Specifically this example:

  • Runs page 6004 of application 6000 and use the current session ID

  • Clears the current session's cache for items on page 6003

  • Indicates debug information should be hidden (NO)

  • Sets the value of MY_ITEM1 to 1234, sets the value of MY_ITEM2 to null (indicated by the commas used as placeholder), and set the value of MY_ITEM3 to 5678

The Oracle APEX Users guide shows how APEX passes literal literal values, a potential security threat unless you implement proper APEX security policies.

Our example of passing variables between screens

Now let's try this with other examples of passing screen values in APEX.  In our example we pass a flight_key value to a new screen numbered 666:


We can also specify the values in the APEX link atribute screen, in this case we pass two values, flight_sched and flight_nbr to the destination screen, page 66:

Displaying values on the destination APEX screen

To verify that the values have been passed we go to the destination screen and create a display item to confirm that the values have been properly passed from the sending APEX screen:

APEX book and code samples:

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APEX developer support:

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