I need help on This SQL problem ASAP :)

Question

Hi All,
I need help on this....
I have a table...
Say table name: one
with these values
premnum status
1234 C
1234 F
1234 P
1234 F
5678 C
5678 F
5678 P
9112 C
9112 F
9112 P
9112 F
3456 C
3456 F
3456 P
7890 C
7890 P
7890 F
Now, I want to output only those premnum with status = 'C' and those premnum with Status 'F' having a count > 1 (with two status = 'F')
So the output would be something like this
premnum status
1234 C
1234 F
1234 F
5678 C
9112 C
9112 F
9112 F
3456 C
7890 C
I really need help on this asap...
I need the SQL statement on this....
Thank you in advance. :)
Edited by: 804697 on Oct 23, 2010 9:45 PM

Answer 1

Hi,
you can use the following query.
CREATE TABLE PREM_TEST ( premnum NUMBER , STATUS VARCHAR2(1));
INSERT INTO PREM_TEST VALUES(1234 ,'C');
INSERT INTO PREM_TEST VALUES(1234 ,'F');
INSERT INTO PREM_TEST VALUES(1234 ,'P');
INSERT INTO PREM_TEST VALUES(1234 ,'F');
INSERT INTO PREM_TEST VALUES(5678 ,'C');
INSERT INTO PREM_TEST VALUES(5678 ,'F');
INSERT INTO PREM_TEST VALUES(5678 ,'P');
INSERT INTO PREM_TEST VALUES(9112 ,'C');
INSERT INTO PREM_TEST VALUES(9112 ,'F');
INSERT INTO PREM_TEST VALUES(9112 ,'P');
INSERT INTO PREM_TEST VALUES(9112 ,'F');
INSERT INTO PREM_TEST VALUES(3456 ,'C');
INSERT INTO PREM_TEST VALUES(3456 ,'F');
INSERT INTO PREM_TEST VALUES(3456 ,'P');
INSERT INTO PREM_TEST VALUES(7890 ,'C');
INSERT INTO PREM_TEST VALUES(7890 ,'P');
INSERT INTO PREM_TEST VALUES(7890 ,'F');
SELECT     PREMNUM , STATUS
FROM     PREM_TEST
WHERE     STATUS = 'C'
OR          (PREMNUM , STATUS ) IN (     SELECT PREMNUM , STATUS
                                             FROM     PREM_TEST
                                             WHERE     STATUS = 'F'
                                             GROUP BY PREMNUM , STATUS
                                             HAVING COUNT(*) > 1
PREMNUM S
1234 C
1234 F
1234 F
5678 C
9112 C
9112 F
9112 F
3456 C
7890 C
9 rows selected.