ORA-01722: invalid number - select description from (SELECT NULL OBJECT_ID, ' -- Select Funding Body -- ' DESCRIPTION FROM DUAL UNION SELECT OBJECT_ID, BODY_NAME DESCRIPTION FROM VA_FUNDING_BODY WHERE SYSDATE BETWEEN START_DATE AND NVL(END_DATE, SYSDATE+1) ORDER BY 2) where object_id ='European Commission[EC NMP4-SL-2008-212533-BioElectricSurface]; Slovak Research and Development Agency[DO7RP-007-09]; ERDF[26240120012]' ORA-01722: invalid number