Quote in a concatenated query

Question

Hi ALL,
I am not thinking straight here. Is anyone out there to help ?. if I want to create a temp collection with the following query, with a character field ( :P_name) how do I get around this single quote issue ? If typed in KING the error is ORA-00904: "KING": invalid identifier
if I put quote around KING then it is OK.
Thanks
Zeng
l_query :='SELECT EMPNO, ENAME, JOB, MGR, HIREDATE, SAL, COMM, DEPTNO FROM EMP A WHERE A.ENAME = ';
r_query :=' ORDER BY A.EMPNO';
APEX_COLLECTION.CREATE_COLLECTION_FROM_QUERY_B
'TEST_EMP', l_query || :P_ENAME || r_query
end;

Answer 1

That won't work - you'll encounter a syntax error.
You could try this (although frankly, it's even uglier than my original suggestion):
l_query :='SELECT EMPNO, ENAME, JOB, MGR, HIREDATE, SAL, COMM, DEPTNO FROM EMP A WHERE A.ENAME = '''||:itemname||'''';
Yuck...
Alternatively, if you want to go completely crazy, you could try using the q function, like so:
l_query :=q'^SELECT EMPNO, ENAME, JOB, MGR, HIREDATE, SAL, COMM, DEPTNO FROM EMP A WHERE A.ENAME = '^'||:itemname||q'^'^';Yikes!