Dynamically change the report column name.

Question

Hi All,
I have a report where i am showing data for greater than current week and year and the code of same is below
SELECT
    item_number,
    SUM
    (   CASE
            WHEN year_week_num = to_number(to_char(sysdate,'IW'))+1 THEN
                quantity
        END
    ) plus_1,
    SUM
    (   CASE
            WHEN year_week_num = to_number(to_char(sysdate,'IW'))+2 THEN
                quantity
        END
    ) plus_2,
    SUM
    (   CASE
            WHEN year_week_num = to_number(to_char(sysdate,'IW'))+3 THEN
                quantity
        END
    ) plus_3,
    SUM
    (   CASE
            WHEN year_week_num = to_number(to_char(sysdate,'IW'))+4 THEN
                quantity
        END
    ) plus_4,
    SUM
    (   CASE
            WHEN year_week_num = to_number(to_char(sysdate,'IW'))+5 THEN
                quantity
        END
    ) plus_5,
    SUM
    (   CASE
            WHEN year_week_num = to_number(to_char(sysdate,'IW'))+6 THEN
                quantity
        END
    ) plus_6,
    SUM
    (   CASE
            WHEN year_week_num = to_number(to_char(sysdate,'IW'))+7 THEN
                quantity
        END
    ) plus_7,
    SUM
    (   CASE
            WHEN year_week_num = to_number(to_char(sysdate,'IW'))+8 THEN
                quantity
        END
    ) plus_8,
    SUM
    (   CASE
            WHEN year_week_num = to_number(to_char(sysdate,'IW'))+9 THEN
                quantity
        END
    ) plus_9,
    SUM
    (   CASE
            WHEN year_week_num = to_number(to_char(sysdate,'IW'))+10 THEN
                quantity
        END
    ) plus_10,
    SUM
    (   CASE
            WHEN year_week_num = to_number(to_char(sysdate,'IW'))+11 THEN
                quantity
        END
    ) plus_11,
    SUM
    (   CASE
            WHEN year_week_num = to_number(to_char(sysdate,'IW'))+12 THEN
                quantity
        END
    ) plus_12,
    SUM
    (   CASE
            WHEN year_week_num = to_number(to_char(sysdate,'IW'))+13 THEN
                quantity
        END
    ) plus_13     
FROM
    (   select
            re.item_number,
            row_gen.year_week_num,
            SUM(NVL(re.quantity,0)) OVER(PARTITION BY re.item_number ORDER BY row_gen.year_week_num) quantity,
            ROW_NUMBER() OVER(PARTITION BY re.item_number, row_gen.year_week_num ORDER BY NULL) rn
        from
            (   SELECT
                    to_number(to_char(sysdate,'IW')) + ROWNUM year_week_num
                FROM
                    DUAL
                CONNECT BY LEVEL <= 13
            ) row_gen LEFT OUTER JOIN
                    (   SELECT
                            le.item_number,
                            le.quantity,
                            to_number(to_char(sysdate,'IW'))+1 year_week_num
                        FROM
                            BACKLOG_WEEK_WH_AFTR_ATP le
                        UNION ALL
                        SELECT
                            re.item_number,
                            -re.quantity,
                            to_number(substr(re.year_week,-2,2)) year_week_num
                        FROM
                            BACKLOG_ATP_GT_CW re
                     ) re
                PARTITION BY (re.item_number)
                ON ( row_gen.year_week_num = re.year_week_num)
WHERE
    rn = 1
GROUP BY
    item_numberI have a item in the report page from which i am displaying which week this year holds and the code of same is below
In the item source, i have selected source type as sql query return single value. and the current week is returning as "2011-WK30"
select to_char(sysdate,'YYYY"-WK"IW') from dual;Please suggest how i can change the display of column dynamically. I want PLUS_1 to show as 2011-WK31, PLUS_2 to show as 2011-WK32 and so on for this week. When next week will come then the plus_1 should show as 2011-WK32, plus_2 to show as 2011-WK33.
Any help how to do this?
Thanks in advance
Regards

Answer 1

Hi,
Go to the Report Attributes, in the Column Attributes section:
1) Use Headings Type as PL/SQL.
2) In the text area Function returning colon delimited headings write a PL/SQL anonymous block returning colon delimited headings.
Hope it helps!
Regards,
Kiran