How can I get null values for the later weeks

Question

Hi All,
When I execute this code I get the records till current week.
How can I display the output so that I get null values for the later weeks. (with the help of v_numOfWeeks variable in the code)
Thanks,
Vikram
DECLARE
   v_query VARCHAR2(4000);
   TYPE ref_cursor IS REF CURSOR;
   v_refcur ref_cursor;
   v_sum NUMBER;
   v_id NUMBER;
   v_name VARCHAR2(1000);
   v_weeknum NUMBER;
   v_pernum NUMBER;
   v_numOfWeeks NUMBER := 5;
BEGIN
v_query := ' SELECT SUM(product_bkg), postn_id, postn_tbl.postn_name, b.week_num, b.period_num
                          FROM ops_cv_extract b, (SELECT row_id, desc_text postn_name
                      FROM s_postn) postn_tbl
                      WHERE lvl_6_id = 5767
                      AND fiscal_year = 2008
                      AND b.week_num < 4
                      AND b.period_num = 3
                      AND b.postn_id = TO_NUMBER(postn_tbl.row_id)
                      GROUP BY postn_id, postn_tbl.postn_name, b.week_num, b.period_num
                      ORDER BY  postn_tbl.postn_name, b.week_num';
OPEN v_refcur FOR v_query;
LOOP
   FETCH v_refcur INTO v_sum, v_id, v_name, v_weeknum, v_pernum;
   EXIT WHEN v_refcur%notfound;
   dbms_output.put_line('P'|| v_pernum||'W'|| v_weeknum||' '||v_name||' '||v_sum);
END LOOP;
END;
This is the output when I execute this code.
P3W1 COMM CNTRL ISAM 213 26961.61
P3W2 COMM CNTRL ISAM 213 12870.4
P3W3 COMM CNTRL ISAM 213 245.88
P3W1 COMM CNTRL ISAM 273 72831.2
P3W2 COMM CNTRL ISAM 273 8739.38
P3W3 COMM CNTRL ISAM 273 3764.92
P3W1 COMM CNTRL TAM 213 49844
P3W2 COMM CNTRL TAM 213 20515.17
P3W3 COMM CNTRL TAM 213 16167.46
P3W2 COMM CNTRL TAM 216 12561.4
P3W3 COMM CNTRL TAM 216 2027.1
P3W1 COMM CNTRL TAM 273 -3336.71
P3W2 COMM CNTRL TAM 273 -1376.68
P3W3 COMM CNTRL TAM 273 19707.42
P3W1 Damon Walters -609.07
P3W2 Damon Walters 30030.24
P3W3 Damon Walters 37475.1
This is the output I'd like to get
P3W1 COMM CNTRL ISAM 213 26961.61
P3W2 COMM CNTRL ISAM 213 12870.4
P3W3 COMM CNTRL ISAM 213 245.88
P3W4 COMM CNTRL ISAM 213
P3W5 COMM CNTRL ISAM 213
P3W1 COMM CNTRL ISAM 273 72831.2
P3W2 COMM CNTRL ISAM 273 8739.38
P3W3 COMM CNTRL ISAM 273 3764.92
P3W4 COMM CNTRL ISAM 273
P3W5 COMM CNTRL ISAM 273
P3W1 COMM CNTRL TAM 213 49844
P3W2 COMM CNTRL TAM 213 20515.17
P3W3 COMM CNTRL TAM 213 16167.46
P3W4 COMM CNTRL TAM 213
P3W5 COMM CNTRL TAM 213
P3W1 COMM CNTRL TAM 273 -3336.71
P3W2 COMM CNTRL TAM 273 -1376.68
P3W3 COMM CNTRL TAM 273 19707.42
P3W4 COMM CNTRL TAM 273
P3W5 COMM CNTRL TAM 273
P3W1 Damon Walters -609.07
P3W2 Damon Walters 30030.24
P3W3 Damon Walters 37475.1
P3W4 Damon Walters
P3W5 Damon Walters Edited by: polasa on Oct 28, 2008 6:42 PM

Answer 1

Sure, in a Single SQL ->
satyaki>
satyaki>select * from v$version;
BANNER
Oracle Database 10g Enterprise Edition Release 10.2.0.3.0 - Prod
PL/SQL Release 10.2.0.3.0 - Production
CORE    10.2.0.3.0      Production
TNS for 32-bit Windows: Version 10.2.0.3.0 - Production
NLSRTL Version 10.2.0.3.0 - Production
Elapsed: 00:00:00.01
satyaki>
satyaki>
satyaki>-- Start Of Test Data --
satyaki>with week_tab
  2  as
  3    (
  4      select 1 period_num, 1 week_num, 10 bkg1 from dual
  5      union all
  6      select 1, 2, 40 from dual
  7      union all
  8      select 1, 3, 30 from dual
  9      union all
10      select 1, 2, 20 from dual
11      union all
12      select 1, 1, 10 from dual
13      union all
14      select 1, 1, 20 from dual
15      union all
16      select 1, 3, 10 from dual
17      union all
18      select 2, 1, 15 from dual
19      union all
20      select 2, 2, 20 from dual
21      union all
22      select 2, 3, 10 from dual
23      union all
24      select 2, 1, 15 from dual
25      union all
26      select 2, 2, 30 from dual
27      union all
28      select 2, 3, 20 from dual
29    )
30  -- End Of Test Data --
31  select period_num,
32         week_num,
33         (
34            select sum(week_tab.bkg1)
35            from week_tab
36            where period_num = m.period_num
37            and   week_num   = m.week_num
38            group by week_num, period_num
39         ) sum_bkg1
40  from (
41        select dum.week_num,
42              wk.period_num
43        from (
44                select 1 week_num from dual
45                union all
46                select 2 from dual
47                union all
48                select 3 from dual
49                union all
50                select 4 from dual
51                union all
52                select 5 from dual
53              ) dum ,
54              (
55                select distinct period_num
56                from week_tab
57          ) wk
58      ) m;
PERIOD_NUM   WEEK_NUM   SUM_BKG1
         1          1         40
         1          2         60
         1          3         40
         1          4
         1          5
         2          1         30
         2          2         50
         2          3         30
         2          4
         2          5
10 rows selected.
Elapsed: 00:00:00.48
satyaki>Regards.
Satyaki De.