Display Specific Values, Suppress others In SQL Query

Question

Hi Everyone,
I am processing a donor report that displays certain status_codes
and suppresses those that do not meet the specified criteria.
mgt wants the specified codes to standout from the others especially with 100,000 donor records.
the specified codes are : 'UDAD' and 'DECD'.
CREATE TABLE DONOR(donor_id number(4), first varchar2(20),last Varchar2(20));
INSERT INTO DONOR(donor_id,first,last) VALUES(1111, 'John', 'Smith');
INSERT INTO DONOR(donor_id,first,last) VALUES(2222, 'Mary', 'Jane');
INSERT INTO DONOR(donor_id,first,last) VALUES(3333, 'Tom', 'Harris');
INSERT INTO DONOR(donor_id,first,last) VALUES(4444, 'Sandy', 'Lee');
CREATE TABLE DONOR_STATUS(donor_id number(4), status_code varchar2(4));
INSERT INTO DONOR_STATUS(donor_id,status_code) VALUES(1111, 'UDAD');
INSERT INTO DONOR_STATUS(donor_id,status_code) VALUES(2222, '998');
INSERT INTO DONOR_STATUS(donor_id,status_code) VALUES(3333,'STMP');
INSERT INTO DONOR_STATUS(donor_id,status_code) VALUES(1111, 'SSS');
INSERT INTO DONOR_STATUS(donor_id,status_code) VALUES(2222, 'ECON');
INSERT INTO DONOR_STATUS(donor_id,status_code) VALUES(3333,'NFEX');
INSERT INTO DONOR_STATUS(donor_id,status_code) VALUES(1111, 'NCOA');
INSERT INTO DONOR_STATUS(donor_id,status_code) VALUES(2222, '995');
INSERT INTO DONOR_STATUS(donor_id,status_code) VALUES(3333,'DECD');
INSERT INTO DONOR_STATUS(donor_id,status_code) VALUES(4444,'UNEM');
INSERT INTO DONOR_STATUS(donor_id,status_code) VALUES(4444,'801');
the output should look like this :
STAT   DONOR_ID FIRST                LAST
UDAD       1111 John                 Smith
           2222 Mary                 Jane
DECD       3333 Tom                  Harris
           4444 Sandy                Leethis is the query I've written so far:
select distinct decode(s.status_code,'UDAD','UDAD','DECD','DECD',null) Statcode,d.donor_Id, first,last
from donor d, donor_status s
where s.donor_id(+)=d.donor_id order by d.donor_idwith this ouput:
STAT   DONOR_ID FIRST                LAST
UDAD       1111 John                 Smith
           1111 John                 Smith
           2222 Mary                 Jane
DECD       3333 Tom                  Harris
           3333 Tom                  Harris
           4444 Sandy                Lee
6 rows selected.it rolls up the non-criteria codes into one row with null value, then outputs the desired row with 'UDAD' or 'DECD' duplicating the output for those donors with the matching criteria code but who also have other non-criteria codes.
any tips/help greatly appreciated.

Answer 1

Hi,
Here's one way:
SELECT    STRAGG (s.status_code)     AS Statcode
,       d.donor_Id
,       d.first
,       d.last
FROM          donor          d
LEFT OUTER JOIN donor_status      s  ON   s.donor_id     = d.donor_id
                               AND     s.status_code     IN ('DECD', 'UDAD')
GROUP BY   d.donor_id, d.first, d.last
ORDER BY   d.donor_id
;You can't use OR or IN in an old-style outer join; that's why I used ANSI syntax.
Is it possible that the same donor would be both 'DECD' and 'UDAD'? What output would you want in that case?
If you have the user-defined aggregate funtion STRAGG, available from AskTom:
http://asktom.oracle.com/pls/asktom/f?p=100:11:0::::P11_QUESTION_ID:2196162600402
you could use STRAGG (s.status_code) instead of MIN (s.status_code), and get 'DECD,UDAD' when applicable.
Edited by: Frank Kulash on Jan 19, 2011 5:08 PM
Added STRAGG option