SQL-01403 error reported in a Report Region when there is data to display

Question

I have a report region populated by a PL/SQL function body returning a SQL Query. When the region is displayed, "ORA-01403: no data found" is output when there should be rows displayed on the report. I see a lot of postings related to ORA-01403, but none seem to describe why this problem occurs or how to solve it.
Here is the generated SQL query:
SELECT DISTINCT entry_type, active_time, expire_time, facility, via, output_remarks, p_reports.f_get_to_positions (entry_id, NULL) pos FROM (SELECT 'RSTN' entry_type, active_time, expire_time, facility, via, output_remarks, entry_id FROM v_restriction_daily_all WHERE (entry_type in ('RSTN', 'APREQ', 'GS')) UNION ALL SELECT 'RSTN' entry_type, active_time, expire_time, facility, via, output_remarks, entry_id FROM v_restriction_daily_all WHERE (entry_type in ('RSTN', 'APREQ', 'GS')) UNION ALL SELECT 'RSTN' entry_type, active_time, expire_time, facility, via, output_remarks, entry_id FROM v_restriction_daily_all WHERE (entry_type in ('RSTN', 'APREQ', 'GS')) UNION ALL SELECT 'APERQ' entry_type, active_time, expire_time, facility, via, output_remarks, entry_id FROM v_apreq_daily_all WHERE (entry_type IN ('APREQ', 'RSTN')) UNION ALL SELECT 'GS' entry_type, active_time, expire_time, facility, via, output_remarks, entry_id FROM v_apreq_daily_all WHERE (entry_type IN ('GS', 'RSTN')) UNION ALL SELECT entry_type, active_time, expire_time, facility, via, output_remarks, entry_id FROM v_edct_daily UNION ALL SELECT entry_type, active_time, expire_time, facility, via, output_remarks, entry_id FROM v_runway_daily UNION ALL SELECT entry_type, active_time, expire_time, facility, via, output_remarks, entry_id FROM v_deicing_daily UNION ALL SELECT entry_type, active_time, expire_time, facility, via, output_remarks, entry_id FROM v_delay_daily UNION ALL SELECT entry_type, active_time, expire_time, facility, via, output_remarks, entry_id FROM v_swap_daily UNION ALL SELECT entry_type, active_time, expire_time, facility, via, output_remarks, entry_id FROM v_sua_daily UNION ALL SELECT entry_type, active_time, expire_time, facility, via, output_remarks, entry_id FROM v_information_daily UNION ALL SELECT entry_type, active_time, expire_time, facility, via, output_remarks, entry_id FROM v_outage_daily ) WHERE (active_time BETWEEN TO_DATE (:G7_LOCAL_MIDNIGHT, 'YYYYMMDDHH24MI') AND TO_DATE (:G7_LOCAL_MIDNIGHT, 'YYYYMMDDHH24MI') + 1)
I am using version 1.6.0.00.87.
Please advise. Thanks.

Answer 1

Create a summary column (lets say "CS_TotalRecords") at report level, and set the following properties:
Function: Count
Source: column which can not be null (if report displays some data)
Reset At: Report
Create a format trigger at most outer frame (the frame you want to hide and all object within that), and write following code:
BEGIN
IF NVL(:CS_TotalRecords,0) = 0 THEN
RETURN (FALSE);
END IF;
RETURN (TRUE);
END;
Hope this helps.