Problem with temporary table refresh

Question

Hi,
I running a process before validation on a page to populate a temporary table when I click a button.
On the following page I've built a shuttle on the temporary table. Not the most elegant solution, but the shuttle LOV box wouldn't process the oracle text commands in the SQL.
I'm not getting any error, but I have an unusual problem
It takes two passes for the data to be replaced. i.e I enter 'ABCD' in the filter and it returns data with 'ABCD'
If I return to the page and change the filter to 'EFGH' I still get 'ABCD'. I return to the page and click the button again and I get 'EFGH' results
I've checked the data in the temporay table and that is updating in line with the problem.
I've looked at the debug and that seems fine (i.e I can see the changed filter value), I've tried moving the truncate to a different process, that didn't help.
I've run it in SQL developer and it seems to work fine.
I've included the code below, but I can't see a problem with it.
Can anybody help?
begin
EXECUTE IMMEDIATE('TRUNCATE TABLE temp_cat');
commit;
if length(:P26_ADD_FILTER) > 0 then
insert into temp_cat (core_cat_id, core_cat_code, core_cat_desc)
select core_cat_id,core_cat_code,core_cat_desc from core_cat where CONTAINS (core_cat_desc, '
<query>
<textquery lang="ENGLISH" grammar="CONTEXT">&P26_ADD_FILTER.
<progression>
<seq><rewrite>transform((TOKENS, "{", "}", " "))</rewrite></seq>
<seq><rewrite>transform((TOKENS, "{", "}", " ; "))</rewrite></seq>
<seq><rewrite>transform((TOKENS, "{", "}", "AND"))</rewrite></seq>
<seq><rewrite>transform((TOKENS, "{", "}", "ACCUM"))</rewrite></seq>
</progression>
</textquery>
<score datatype="INTEGER" algorithm="COUNT"/>
</query>')>0 and core_cat_id not in (select pipe_project_cat.core_cat_id from pipe_project_cat where txtpamref = :p26_pamref);
else
insert into temp_cat (core_cat_id, core_cat_code, core_cat_desc)
select core_cat_id,core_cat_code,core_cat_desc from core_cat where
core_cat_id not in (select pipe_project_cat.core_cat_id from pipe_project_cat where txtpamref = :p26_pamref);
end if;
end;

Answer 1

Hi,
Apex does not work well with temporary tables as you cannot guarantee which session from the pool will be used to serve each page.
In your case, it looks like the second page is using temporary data from the wrong session.
Have you considered using Apex Collections instead?
Luis