Please Help: TO_NCLOB function giving error

Question

Hi,
I have HTML tags in one of database columns. As these tags were being displayed in my report, I used TO_NCLOB function to get rid of these tags.
[I do not need the formatting anyway] This was just working fine until today.
PROBLEM
I have this text in my field:
"<span style="font-size:10pt;font-family:&quot;;;Arial&quot;,&quot;sans-serif&quot">THE COMPANY HAS RECLASSIFIED xxx MILES OF
“DISTRIBUTION” STEEL MAIN FROM COATED/PROTECTED TO BARE/PROTECTED TO REFLECT
THE INFERIOR PROTECTIVE PROPERTIES ASSOCIATED WITH THE EARLIEST TYPES OF STEEL
PIPE COATINGS (BARE GREASE, ROSKOTE, NO OXIDE, ETC.).</span>"
The report threw an error, when I removed the TO_NCLOB Function in the sql the report is working fine, but is showing html tags in the output pdf.
I do not understand why the TO_NCLOB function is giving me error in this particular scenario, I am not even able to get the xml data.
I tried to use the same sql with the TO_NCLOB function in TOAD and it was working fine.
Your help is highly appreciated, It is a high priority issue.
Thanks,
Rakesh
Edited by: user13814009 on Mar 16, 2011 11:50 PM

Answer 1

Oh ..Ok..
Thanks for the answer. So , to get the distinct values , I need to change the query
like I shown below. .
select  ( cast(collect(t_tfo_sp_copy_evnt_dtl(event,       evnt.event_desc,
                    promo_month_desc,
                    .start_date,
                    end_date
                    start_date)) as
                    t_tfo_sp_event_table) from
                                                                              ( select distinct  evnt.event, evnt.event_desc,
                    mth.promo_month_desc,
                    TO_CHAR(evnt.start_date,
                    'DD/MM/YYYY'),
                    TO_CHAR(evnt.end_date,
                    'DD/MM/YYYY'),
                    TO_CHAR((evnt.start_date - 21),
                    'DD/MM/YYYY')
          FROM TFO_SP_RETEK_PROMO_EVENT_MST evnt
           INNER JOIN  .....
           WHERE ...
           ORDER BY evnt.event_desc,
                                   mth.promo_month_desc,
                                   dtl.promo_start_date,
                                   dtl.promo_end_date,
                                   dtl.promo_cost_start_date); But I guess, it will increase the performance overhead.Any other suggestion you have to rewrite the query so that it will perform better?
Edited by: Manjusha Muraleedas on २५ जनवरी, २०१३ ९:५५ पूर्वाह्न