Exact fetch returns more than requested number of rows oracle error ; unable to find where exactly throwing error in the below code.

Question

hi i am receiving "exact fetch returns more than requested number of rows oracle error". but i am not able to locate the error in the below code. Any help would be appreciated!!!
CREATE OR REPLACE PROCEDURE load_scene_collection_item (
--pdname                                  VARCHAR2,
-- LOCATION TO ADD/CHANGE below!!!
pITEM_TYPE_ID                      INTEGER,
pSCENE_COLLECTION_ID        INTEGER,
pCOLLECTION_ITEM_NAME     VARCHAR2,
pCOLLECTION_ITEM_DESC      VARCHAR2,
pDEFAULT_COORD_X      NUMBER,
pDEFAULT_COORD_Y      NUMBER,
pDEFAULT_COORD_Z      NUMBER,
pDEFAULT_WIDTH            NUMBER,
pDEFAULT_HEIGHT            NUMBER,
pDEFAULT_ROTATION      INTEGER,
pDEFAULT_ALPHA            INTEGER,
pfname                                 VARCHAR2)    IS
src_file BFILE;
dst_file BLOB;
lgh_file BINARY_INTEGER;
BEGIN
src_file := bfilename('BUSINESSBLOBSIMAGES', pfname);
-- insert a NULL record to lock
Insert into SCENE_COLLECTION_ITEM
   ( ITEM_TYPE_ID,
   SCENE_COLLECTION_ID,
   COLLECTION_ITEM_NAME,
   COLLECTION_ITEM_DESC,
    COLLECTION_ITEM_IMAGE,
   DEFAULT_COORD_X,
   DEFAULT_COORD_Y,
   DEFAULT_COORD_Z,
   DEFAULT_WIDTH,
   DEFAULT_HEIGHT,
   DEFAULT_ROTATION,
   DEFAULT_ALPHA,
    CREATE_USER,
    CREATE_DATE)
Values    ( pITEM_TYPE_ID, pSCENE_COLLECTION_ID, pCOLLECTION_ITEM_NAME, pCOLLECTION_ITEM_DESC, EMPTY_BLOB(),   
   pDEFAULT_COORD_X,
   pDEFAULT_COORD_Y,
   pDEFAULT_COORD_Z,
   pDEFAULT_WIDTH,
   pDEFAULT_HEIGHT,
   pDEFAULT_ROTATION,
   pDEFAULT_ALPHA,  
sys_context('USERENV', 'OS_USER'), 
sys_extract_utc(systimestamp))
RETURNING COLLECTION_ITEM_IMAGE INTO dst_file;
-- LOCATIONs(2) TO ADD/CHANGE above!!!
-- lock record
SELECT COLLECTION_ITEM_IMAGE
INTO dst_file
FROM SCENE_COLLECTION_ITEM
WHERE ITEM_TYPE_ID     = pITEM_TYPE_ID
AND SCENE_COLLECTION_ID = pSCENE_COLLECTION_ID
AND COLLECTION_ITEM_NAME= pCOLLECTION_ITEM_NAME
AND COLLECTION_ITEM_DESC= pCOLLECTION_ITEM_DESC
AND    pDEFAULT_COORD_X = DEFAULT_COORD_X
AND   pDEFAULT_COORD_Y  = DEFAULT_COORD_Y
AND   pDEFAULT_COORD_Z  = DEFAULT_COORD_Z
AND   pDEFAULT_WIDTH    = DEFAULT_WIDTH
AND   pDEFAULT_HEIGHT   = DEFAULT_HEIGHT
AND   pDEFAULT_ROTATION = DEFAULT_ROTATION
AND   pDEFAULT_ALPHA    = DEFAULT_ALPHA
FOR UPDATE;
-- LOCATION TO ADD/CHANGE above!!!
-- open the file
dbms_lob.fileopen(src_file, dbms_lob.file_readonly);
-- determine length
lgh_file := dbms_lob.getlength(src_file);
-- read the file
dbms_lob.loadfromfile(dst_file, src_file, lgh_file);
-- update the blob field
UPDATE SCENE_COLLECTION_ITEM
SET COLLECTION_ITEM_IMAGE = dst_file
WHERE ITEM_TYPE_ID     = pITEM_TYPE_ID
AND SCENE_COLLECTION_ID = pSCENE_COLLECTION_ID
AND COLLECTION_ITEM_NAME= pCOLLECTION_ITEM_NAME
AND COLLECTION_ITEM_DESC= pCOLLECTION_ITEM_DESC
AND    pDEFAULT_COORD_X = DEFAULT_COORD_X
AND   pDEFAULT_COORD_Y  = DEFAULT_COORD_Y
AND   pDEFAULT_COORD_Z  = DEFAULT_COORD_Z
AND   pDEFAULT_WIDTH    = DEFAULT_WIDTH
AND   pDEFAULT_HEIGHT   = DEFAULT_HEIGHT
AND   pDEFAULT_ROTATION = DEFAULT_ROTATION
AND   pDEFAULT_ALPHA    = DEFAULT_ALPHA
-- LOCATION TO ADD/CHANGE above!!!
-- close file
dbms_lob.fileclose(src_file);
END load_scene_collection_item;
Thanks in advance!!!!

Answer 1

Hi PaulHorth,
Thanks for the quick reply.
Actually, i am getting  error while updating the records.
below is the error message:
Error starting at line 1 in command:
exec load_scene_collection_item(3,15,'2 Lane 4way Stop','4 Way Stop Intersection with 2 lanes in each direction',0,0,0,400,517,0,1,'2 Lane 4way Stop.PNG');
Error report:
ORA-01422: exact fetch returns more than requested number of rows
ORA-06512: at "DP_OWNER.LOAD_SCENE_COLLECTION_ITEM", line 55
ORA-06512: at line 1
01422. 00000 - "exact fetch returns more than requested number of rows"
*Cause:    The number specified in exact fetch is less than the rows returned.
*Action:   Rewrite the query or change number of rows requested