SQL Query as Item Source/Oracle Reports w/ HTML DB?

Question

I have successfully used a SQL Query as an item source in the past on several occasions. However, in this instance, every time I try to do this, I get the following error:
Error ERR-1019 Error computing item default value: page=3 name=P3_TEST_ITEM.
ORA-01460: unimplemented or unreasonable conversion requested ORA-02063: preceding line from [database_name]
If I use the exact same query in creating a report region, the page displays fine and the query returns the correct data. Why might this be happening, and what can I do to fix it?
Also - off the subject - is there a way to use HTML DB to deploy reports that are created in Oracle Reports Builder? I have created several employee productivity reports for supervisors and managers in HTML DB, which is great for allowing them to run them live and have fields as parameters for varying employees, date ranges, etc... but formatting them to be browser and printer friendly is an absolute nightmare so far. If I could create and format the reports in Reports Builder and then deploy them using HTML DB, while still being able to offer parameters to the user, that would be perfect. Is this possible?

Answer 1

Here is my query:
SELECT
TO_CHAR((sum(decode(ef.production_function,'Y',ef.function_minutes+ef.function_ot_minutes))/60)/8, '9999999.99')
FROM
RLAPPLSG.EMPLOYEE_INFO@REMOTE_SERVER EI,
RLAPPLSG.SC_EMP_FUNCTIONS@REMOTE_SERVER EF,
RLAPPLSG.SC_EMP@REMOTE_SERVER E
WHERE
( e.SC_EMP_NBR=ef.SC_EMP_NBR )
AND ( ei.EMP_ID=e.EMP_ID )
AND (
( trunc(( e.SC_DATE )) BETWEEN :P2_BEGIN_DATE AND :P2_END_DATE )
AND (ei.EMP_MGRS_ID = :P2_SUPERVISOR_ID
OR ei.EMP_ID = :P2_SUPERVISOR_ID)
Every table and/or view that is referenced here is done so remotely. The column datatype breakdown is as follows:
production_function - BOOLEAN
function_minutes - NUMBER
function_ot_minutes - NUMBER