Query not returing the Data

Question

All / Experts,
Can we use a.invoices in the IN clause of the below query:
select a.user_id, count(*) Download
from (
select '''' || to_char(replace ( substr(details, 26 , instr( details , '<' , 1,3)-26 ) , ',', ''',''' ) || '''') as invoices , actinguserid as user_id
from bchistevent where bucket = 201301
and upper(type) = 'COM.AVOLENT.PRESENTATION.EVENT.INVOICEDOWNLOADEVENT'
--and    bchistevent.bucket = to_char (add_months (sysdate, -1),'YYYYMM')
) a,
bcbillsumm b
where b.stmtnum in (a.invoices)
group by a.user_id;
I am not getting the result.
However, by placing the values such as '395452997-000-20130103' in the IN clause is working fine.
Any help here will be appreciated.
Regards
Oracle User

Answer 1

oracle user wrote:
This is working for the a.invoices where value is coming as 395453127-000-20130103 or 300000590-000-20090723, but the query is not working where the a.invoices vale is coming as 300084670-000-20120906, 300084671-000-20120906 or 300084670-000-20120906, 300084671-000-20120906, 300084679-000-20120906.XML was supposed to kill off the CSV file. XML allows us to specify data structures on the fly, like this:
<invoices>
  <invoice_no>300084670-000-20120906</invoice_no>
  <invoice_no>300084671-000-20120906</invoice_no>
</invoices>So why oh why do you have comma separated values in an XML data structure? It's just insane. In fact, it's almost a Daily WTF CodeSOD. It's definitely a sidebar.
Anyway, as you were. You will need to write a string tokenizer to split the {font:courier new}DETAILS{font} string into a nested table of invoice tokens.
Cheers, APC