APEX4: Populating fields from database based on the SelectList value

Question

Hi,
I've a Select List and 4 Text Fields on a form. On selecting a value on the Select List, I've to populate the Text Fields by fetching its values from the database by using the Select List value as the primary key.
How can I do this in APEX 4?
Thanks for the help.
--Hozy                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                           

Answer 1

Thank you so much for helping me out.
Yes, it comes from the same table account.
These are the sqls to fetch the 4 values in each dynamic action:
select a.address1 from account a where a.account_id = :P14_ACCOUNT
select a.address2 from account a where account_id = :P14_ACCOUNT
select a.city from account a where a.account_id = :P14_ACCOUNT
select a.postal_code from account a where a.account_id = :P14_ACCOUNT
Right now, I only have one dynamic action for text field P14_BILLING_ADDRESS_1, and even for just one the value is not showing up in it. Please note that when I added for dynamic actions, the the values were showing up in all the 4 text fields before.
Then when I added 4 more dynamic actions for a different Select List (P14_CUSTOMER), but for the same text fields, it all stopped working. And now even a single dynamic action is not working. This is how the sql for next 4 dynamic actions looked like:
select c.address1 from customer c where c.customer_id = :P14_CUSTOMER
select c.address2 from customer c where c.customer_id = :P14_CUSTOMER
select c.city from customer c where c.customer_id= :P14_CUSTOMER
select c.postal_code from customer c where c.customer_id= :P14_CUSTOMER
}