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 ='Irish Health Research Board[HRB CSA 2007/3]; Irish Motor Neurone Disease Research Foundation[IMNDRF 07/01]; Muscular Dystrophy Association (United States of America)[2007/4252]' ORA-01722: invalid number