Image file on link

Question

Tried to construct a customized query . Find the following example on prev. thread that will display conditional link on prod_id which is a primary key.
select case when prod_zone in (1, 2, 3) then '{a href="f?p=' || :APP_ID || ':11:' || :SESSION_ID ||
          '::::P11_PROD_ID:' || prod_id || '"}' || prod_id || '{a}' else prod_id end prod_id,
prod_name, prod_zone, prod_quantity
from table A
My need: when prod_zone in 1,2,3, display the link icon on prod_name column but use existing apex icon like <img src="/i/e.gif" alt="Edit" )
select
case when prod_zone in (1, 2, 3) then '{a href="f?p=' || :APP_ID || ':11:' || :SESSION_ID ||
          '::::P11_PROD_ID,P11_PROD_name:' || prod_name || '"}' || "< img src="/i/edit_big.gif" alt="> || '{a}'
else prod_name
end prod_name,
prod_id, prod_zone, prod_quantity
from table A
with the above query, I kept getting missing expression. Evidently the img syntax is wrong but could not figure out how, plus I am having trouble putting prod_id at proper place. Can you help ?
Wan

Answer 1

Hi,
Try
SELECT
  CASE
    WHEN prod_zone IN (1, 2, 3)
    THEN '<a href="f?p=&APP_ID.:11:&SESSION.::::P11_PROD_ID,P11_PROD_NAME:'|| prod_name || '">< img src="&IMAGE_PREFIX.edit_big.gif" alt="></a>'
    ELSE prod_name
  END prod_name,
  prod_id,
  prod_zone,
  prod_quantity
FROM TABLE A
{code}
Br,Jari
Edited by: jarola on Mar 8, 2010 3:43 PM
Edited by: jarola on Mar 8, 2010 3:47 PM
Hmm.
Some reason forum do not like my post.
Any way , is there substitution string :SESSION_ID ? I think it should be :SESSION or :APP_SESSION