Re: SELECT A CLOB - GROUP BY

On Apr 4, 9:21 am, "Shakespeare" <what..._at_xs4all.nl> wrote:
> <trp..._at_gmail.com> schreef in berichtnews:132260f0-7ad9-4fe6-b9b1-e4c4904f366e_at_24g2000hsh.googlegroups.com...
> On Apr 3, 3:56 pm, trp..._at_gmail.com wrote:
>
>
>
>
>
> > Hi,
>
> > I am having trouble selecting a CLOB (CASE_LIST), here is what
> > happens:
>
> > SELECT PRODUCT_NAME AS "Product Name", SUM(CASES_CREATED) AS "Cases
> > Created",
> > CASE_LIST
> > FROM PEOPLESOFTBUCUSTPROD
> > GROUP BY PRODUCT_NAME, CASE_LIST
> > ORDER BY PRODUCT_NAME
>
> > I get this error: ORA-00932: inconsistent datatypes: expected - got
> > CLOB
>
> > Then I did this, using TO_CHAR:
>
> > SELECT PRODUCT_NAME AS "Product Name", SUM(CASES_CREATED) AS "Cases
> > Created",
> > TO_CHAR(CASE_LIST)
> > FROM PEOPLESOFTBUCUSTPROD
> > GROUP BY PRODUCT_NAME, TO_CHAR(CASE_LIST)
> > ORDER BY PRODUCT_NAME
>
> > I get this error: ORA-22835: Buffer too small for CLOB to CHAR or BLOB
> > to RAW conversion (actual: 4997, maximum: 4000)
>
> > So lastly I did this, using DBMS_LOB.SUBSTR:
>
> > SELECT PRODUCT_NAME AS "Product Name", SUM(CASES_CREATED) AS "Cases
> > Created",
> > DBMS_LOB.SUBSTR(CASE_LIST, 4000, 1) CASE_LIST
> > FROM PEOPLESOFTBUCUSTPROD
> > GROUP BY PRODUCT_NAME, DBMS_LOB.SUBSTR(CASE_LIST, 4000, 1)
> > ORDER BY PRODUCT_NAME
>
> > I am now able to get results, but my data is truncated at 4000
> > characters, which will not work
>
> > Any ideas on how to get the full clob results in one query?
> > Is it possible to Select a CLOB in a GROUP BY? Is there a work around
> > for when TO_CHAR exceeds 4000 characters?
>
> Don't put your CLOB in the group by clause, just in the select and only
> group by product_name. I don't expect you really want to group by a CLOB, do
> you?
>
> Shakespeare- Hide quoted text -
>
> - Show quoted text -

If I do that I get an error:

SELECT PRODUCT_NAME AS "Product Name", SUM(CASES_CREATED) AS "Cases Created",
CASE_LIST
FROM PEOPLESOFTBUCUSTPROD
GROUP BY PRODUCT_NAME
ORDER BY PRODUCT_NAME ORA-00979: not a GROUP BY expression Received on Fri Apr 04 2008 - 10:49:42 CDT