Add to Multiple Tables from One Page

Question

Hello,
I am building an application that handles hardware inventory (APEX 4.0). I have an input page that adds data to two or more tables all at once. The page has two forms on it that point to two separate tables. However when I try to run the page, it fails and returns an error:
ORA-06550: line 1, column 437: PL/SQL: ORA-00904: "ORH_LAST_UPDATE_DATE": invalid identifier ORA-06550: line 1, column 7: PL/SQL: SQL Statement ignored
     Error      Unable to process row of table IDD_ID_DATA.
So far as i can see within the App, that column is not at issue (I am not even doing anything to it and it is nullable). I have looked into the App itself as well as doing some online research but have found nothing helpful...
So my question is this: Is it possible to add to multiple tables from one page? If so how do I do it?
I am new to APEX so any help would be greatly appreciated!

Answer 1

UPDATE:
I received an email from the APEX Support Team:
"The simple answer is that you will need to manually code the DML (and query) processes if you wish to maintain multiple tables from one page (There is a limit of one table when using the built-in processes).
In order to do this I suggest you delete the processes generated by the wizards and create PL/SQL processes with insert, update, delete statements as necessary. Such coding is not difficult but is more time consuming than when you can use built-in processes."
I have been playing around with PL/SQL code and the end result is this:
begin
     INSERT INTO table1
     VALUES(
          :P2_Item_Field1,
          :P2_Item_Field2);
     INSERT INTO table2
     VALUES(
          :P2_Item_Field1,
          :P2_Item_Field2);
end;
I used this code in a custom PL/SQL Process in the Processing>Processes section of Page Processing and it seems to work fine now. The only downside to this method is if the name of a Page Item is changed the code will also have to be changed. Other than that i have had no problems.