How to compare values in collection.

Question

Hi,
I am using oracle 11g XE, I am doing a validation using bulk collect collection.
DECLARE
TYPE TEM IS TABLE OF VARCHAR2(1000);
EM TEM;
P_MAIL VARCHAR2(1000);
BEGIN
P_MAIL := UPPER('[email protected]');
SELECT EMAIL BULK COLLECT INTO EM FROM
SELECT UPPER(EMAIL_ID)   AS  EMAIL FROM SONARA_CONSULTANT_DETAILS
UNION
SELECT EMAIL_ID_2 AS  EMAIL FROM SONARA_CONSULTANT_DETAILS
) WHERE EMAIL IS NOT NULL;
  FOR I IN EM.FIRST..EM.LAST LOOP  
    IF  P_MAIL = EM(I) THEN    // Here i am comparing the mail id with collection but it always goes to INVALID
    DBMS_OUTPUT.PUT_LINE('VALID');       
     ELSE
     DBMS_OUTPUT.PUT_LINE('INVALID');       
    END IF;
  END LOOP;
END;
} Please suggest me how to do the comparison
Thanks
Sudhir

Answer 1

It seems that you don't compare everywhere in uppercase, so for me this is rather a letter case problem in your string addresses. The following works for me
DECLARE
    TYPE TEM IS TABLE OF VARCHAR2(1000);
    EM TEM;
    P_EMAIL VARCHAR2(1000) := '[email protected]';
BEGIN
    WITH SONARA_CONSULTANT_DETAILS AS
        SELECT '[email protected]' AS emailAddr FROM DUAL UNION
        SELECT '[email protected]' AS emailAddr FROM DUAL UNION
        SELECT '[email protected]'  AS emailAddr FROM DUAL UNION
        SELECT '[email protected]' AS emailAddr FROM DUAL UNION
        SELECT '[email protected]' AS emailAddr FROM DUAL UNION
        SELECT '[email protected]' AS emailAddr FROM DUAL UNION
        SELECT '[email protected]' AS emailAddr FROM DUAL UNION
        SELECT '[email protected]' AS emailAddr FROM DUAL
    SELECT emailAddr BULK COLLECT INTO EM
    FROM SONARA_CONSULTANT_DETAILS;
    FOR indx IN EM.FIRST .. EM.LAST
    LOOP
        IF UPPER(P_EMAIL) = UPPER(EM(indx))
        THEN
            DBMS_OUTPUT.PUT_LINE('VALID');
        ELSE
            DBMS_OUTPUT.PUT_LINE('INVALID');
        END IF;
    END LOOP;
END;
/Which gives me the following result
INVALID
INVALID
INVALID
INVALID
INVALID
INVALID
INVALID
VALID
PL/SQL procedure successfully completed.
SQL> Regards,
Dariyoosh