Multiple Row in a Function

Hi Guys,
I have a function as below:
CREATE OR REPLACE FUNCTION BUSOBJ.pos_countrycode_lookup (
record_locator VARCHAR2,
pnr_creation_date DATE
RETURN VARCHAR2
IS
pnr_id NUMBER;
city_code VARCHAR2 (10 BYTE);
country_code VARCHAR2 (10 BYTE);
record_loc VARCHAR2 (10 BYTE);
pnr_create_dt DATE;
org_booking_city VARCHAR2 (10 BYTE);
org_booking_agent VARCHAR2 (10 BYTE);
org_booking_city_code VARCHAR2 (10 BYTE);
rec_iso_country_code VARCHAR2 (10 BYTE);
gds_country_code VARCHAR2 (10 BYTE);
is_country_code VARCHAR2 (10 BYTE);
BEGIN
BEGIN
SELECT ph.pnr_id_pk, ph.record_locator, ph.pnr_creation_date_time,
ph.original_booking_city, ph.original_booking_agent,
ph.original_booking_city_code, pd.rec_loc_iso_country_code,
pd.gds_location_country_iso, ph.iso_country_code
INTO pnr_id, record_loc, pnr_create_dt,
org_booking_city, org_booking_agent,
org_booking_city_code, rec_iso_country_code,
gds_country_code, is_country_code
FROM pnr_hdr ph, pos_details pd
WHERE ph.record_locator = record_locator
AND TRUNC (ph.pnr_creation_date_time) = pnr_creation_date
AND ph.pnr_id_pk = pd.pnr_id_fk
AND ph.delete_flag IS NULL
GROUP BY ph.pnr_id_pk,
ph.record_locator,
ph.pnr_creation_date_time,
ph.original_booking_city,
ph.original_booking_agent,
ph.original_booking_city_code,
pd.rec_loc_iso_country_code,
pd.gds_location_country_iso,
ph.iso_country_code;
END;
When I am giving an input in the function it terminates giving the error as
ORA-01422: exact fetch returns more than requested number of rows
ORA-06512: at "BUSOBJ.POS_COUNTRYCODE_LOOKUP", line 20
I executed the query using the parameters and it returns only single row if data. Please can you guys suggest what can be the issue.
Cheers,
Shazin
Edited by: Shaz on Feb 20, 2012 4:06 PM

Shaz,
Have a look at the individual tables. They both have only one record for your where statement?
You can also try to do this in a cursor and fetch only the first record if that suffices.
Regards,
Richard
blog: http://blog.warp11.nl
twitter: @rhjmartens
If this question is answered, please mark the thread as closed and assign points where earned..

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$tNG->getColumnValue("Item_1") is used to retrieve the value that was set by the form input field named Item_1. This field is named by the Custom Form Wizard when you create your form. You can see what all the input filed names are by looking in the code view for something like:
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