Default value for the text in a tabular presentation element

Hello

I creates a tabular form generated by using a SQL query.
I would like to first of all the value for a column of nextval deault a sequence when an empty row is added using the add a LINE button

my request currently for the sequence value column when you click on the ADD row button is:
apex_item.display_and_save (4, NULL) as trans_id,.

I want this column trans_id trans_seq.nextval where trans_seq is a default sequence.

I tried specifying the default value in the column attributes (expression of PL/SQL - trans_seq.nextval) which does not work.
If I give in the SQL query, it throws an error saying that the unauthorized sequence here...

My query is structured as follows:
SELECT
apex_item.display_and_save (4,c002) trans_id
FROM
apex_collections
WHERE collection_name = 'TRANSACTIONS'
UNION ALL
SELECT
apex_item.display_and_save (4,NULL)  as  trans_id
FROM DUAL
     WHERE :request = 'ADD_ROW_MANUAL'
Appreciate any help in this regard. I hope that my question is explained clearly

Thanks in advance,
Dippy

Published by: Fisher on February 16, 2010 12:41

Published by: Fisher on February 16, 2010 15:55

Hello.

1. create a function named next_value

create or replace function next_value
return number
is
ret_value number;
begin
select trans_seq.nextval into ret_value from dual;
return ret_value;
end;

2 display the query as below

 SELECT
apex_item.display_and_save (4,c002) trans_id
FROM
apex_collections
WHERE collection_name = 'TRANSACTIONS'
UNION ALL
SELECT
apex_item.display_and_save (4,next_value())  as  trans_id
FROM DUAL
     WHERE :request = 'ADD_ROW_MANUAL'

Kind regards
Shijesh

Tags: Database

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