Conditional URL ( CASE ) within a Dynamic Query

Question

I need extra eyes or help in RE-FORMATTING the following SELECT STMT. My approach was to formulate the following query to get a functioning URL to the page that displayed the corrections made on that record (if it was corrected)...which I did. So now I'm trying to move the CASE portion into a dynamic query report. I'm having difficulties rewriting the CASE into the dynamic query due to placement of single-quotes. Is there an easy way to do this...or do I still need to find the correct placement of quotes? HELP!
select "ID",
"EMP_ID",
"ENTRY_DATE",
"JOB_TITLE",
"START_DATE",
"END_DATE",
"MODIFIED_DATE",
"lkup_1"."DESCRIPTION" as "Status",
CASE
WHEN rec_status = 'CR' -- corrected record
THEN '<a href="'
                  || 'f?p=&APP_ID.:90:&SESSION.::&DEBUG.::'
                  || 'P90_RID,P90_TIMESTAMP:'
                  || rid ||',' || TO_CHAR(modified_date,'MM/DD/YYYY')
                  || ">'
|| 'See Update(s)'
|| '</a>'
|| '</a>'
ELSE NULL
END LINK,
"lkup_2"."DESCRIPTION" as "Action",
"CATEGORY",
apex_item.checkbox(1,rid) as "Confirm"
from "JOB_SUMMARIES",
"LOOKUPS" "lkup_1",
"LOOKUPS" "lkup_2"
where "REC_STATUS" <> 'CF'
and "REC_STATUS" = "lkup_1"."CODE"
and "ACTION" = "lkup_2"."CODE"(+)
Here is what I sort of come up with, but I'm getting dizzy looking at it so many times!
' CASE '||
' WHEN rec_status = ' || '''' || '''CR''' || '''' ||
' THEN ' || '''' || '<a href="' || '''' ||
         '            ||' || '''' || 'f?p=&APP_ID.:90:&SESSION.::&DEBUG.::' || '''' ||
         '            ||' || '''' || 'P90_RID,P90_TIMESTAMP:' || '''' ||
         '            ||' || ' id ||' || '''' || ''',''' || '''' || '|| TO_CHAR(modified_date,' || '''' || 'MM/DD/YYYY' || '''' || ')' || '''' ||
         '            ||' || '''' || ">' || '''' ||
' ||' || '''' || 'See Update(s)' || '''' ||
' ||' || '''' || '</a>' || '''' ||
' ||' || '''' || '</a>' || '''' ||
' ELSE NULL '||
' END LINK, '||
I'm still getting an error which is:
1 error has occurred
* Query cannot be parsed within the Builder. If you believe your query is syntactically correct,
check the ''generic columns'' checkbox below the region source to proceed without parsing.
ORA-00905: missing keyword

Answer 1

I still cannot get the insertion of the CASE to compile...I keep getting MISSING EXPRESSION error.
1 error has occurred
* Query cannot be parsed within the Builder. If you believe your query is syntactically correct,
check the ''generic columns'' checkbox below the region source to proceed without parsing.
ORA-00936: missing expression
Here is my dynamic query and I want to place the CASE as indicated. The numerous quotes or the Q syntax is really messing up my attempts to get this page working. I have a dynamic query because I am allowing search parameters. And I thought it would be nice to have a LINK to another page that displayed changed column values if a user CORRECTED one of their records. All changes must be verified and accepted by a REVIEWER.
declare
q varchar2(32767); -- query
w varchar2(4000) ; -- where clause
we varchar2(1) := 'N'; -- identifies if where clause exists
begin
q := 'select "ID", '||
' "EMP_ID", '||
' "ENTRY_DATE", '||
' "JOB_TITLE", '||
' "START_DATE", '||
' "END_DATE", '||
' "lkup_1"."DESCRIPTION" as "Status", '||
>WANT TO PLACE CASE RIGHT HERE
' "lk_up2"."DESCRIPTION" as "Action", '||
' "CATEGORY", '||
' apex_item.checkbox(1,rid) as "Confirm" '||
' from "#OWNER#"."JOB_SUMMARIES", '||
' "#OWNER#"."LOOKUPS" "lkup_1", '||
' "#OWNER#"."LOOKUPS" "lkup_2" '||
' where "REC_STATUS" <> ' || '''' || 'CF' || '''' ||
' and "REC_STATUS" = "lkup_1"."CODE" '||
' and "ACTION" = "lkup_2"."CODE"(+) ';
if :P16_EMP_ID != '-1'
then
w := ' AND EMP_ID = :P16_EMP_ID ';
we := 'Y';
end if;
if :P16_RECORD_STATUS != '-1'
then
w := w || ' AND REC_STATUS = :P16_RECORD_STATUS ';
we := 'Y';
end if;
if :P16_CATEGORY != '-1'
then
w := w || ' AND CATEGORY = :P16_CATEGORY ';
we := 'Y';
end if;
if we = 'Y'
then q := q || w;
end if;
return q;
end;
Edited by: JSandoval on Aug 10, 2009 3:42 PM