How to create a view to perform the following

Question

I have a table as below:
Name Date           Amount
A     01.09.2011     100
B     01.08.2011     200
C     04.05.2011     300
I need to write a view in SQL to get the following:
Name Upto 30days Upto 30-60days     Upto 60-90days
A 100
B 200
C 300
Edited by: 883762 on Sep 7, 2011 5:59 AM

Answer 1

WITH src AS
(   SELECT 'A' name, to_date('01.09.2011','dd.mm.yyyy') dt, 100 amt FROM DUAL UNION ALL
    SELECT 'B'  ,to_date('01.08.2011','dd.mm.yyyy'), 200 FROM DUAL UNION ALL
    SELECT 'C'  ,to_date('04.05.2011','dd.mm.yyyy'), 300 FROM DUAL
SELECT
    name,
    CASE
        WHEN dt >= TRUNC(sysdate) - 30 THEN
            amt
    END upto_30_days,
    CASE
        WHEN dt >= TRUNC(sysdate) - 60 AND dt < TRUNC(sysdate) - 30 THEN
            amt
    END btn_30_and_60,
    CASE
        WHEN dt >= TRUNC(sysdate) - 90 AND dt < TRUNC(sysdate) - 60 THEN
            amt
    END btn_60_and_90
FROM
    srcHTH
David