Error: ORA-00907: missing right parenthesis - can you help figure out issue

Question

select regexp_substr((replace(replace(replace((\'CA\',\'CO\',\'IL\',\'KS\'),chr(40)),chr(41)), chr(39))), \'[^,]+\', 1, level) as division from dual
                             


        

Answer 1

You have a quotation problem(quote the whole term ('CA','CO','IL','KS') after adding extra quotes per each single quote), try this rather :

 SELECT regexp_substr((replace(replace(replace('(''CA'',''CO'',''IL'',''KS'')',
                      chr(40)),
                      chr(41)), 
                      chr(39))), '[^,]+', 1, level) AS division 
   FROM dual
CONNECT BY level <= regexp_count('(''CA'',''CO'',''IL'',''KS'')', ',') + 1;

DIVISION
--------
CA
CO
IL
KS

Demo