MYSQL-如何取消数据透视表获取以下输出？

Question

从未使用过太多的MYSQL，这是一个复杂的示例，所以在此先感谢。 我希望通过COD_DUE_DATE取消以下查询。因此，我希望CASE_ID在该列的下方，并沿着该列我需要4个部分：-不到一周的时间，一个星期，两个星期的时间，三个星期等。 然后中间的值将是CASE_ID的计数

    SELECT DISTINCT a.CASE_ID, b.BUCKET, a.CUSTOMER_OCCUPATION_DATE,
    CASE 
        WHEN a.CUSTOMER_OCCUPATION_DATE BETWEEN SYSDATE-10000 AND SYSDATE+7 THEN 'LESS THAN 1 WEEK'
        WHEN a.CUSTOMER_OCCUPATION_DATE BETWEEN SYSDATE+8 AND SYSDATE+14 THEN 'DUE IN 1 WEEK'  
        WHEN a.CUSTOMER_OCCUPATION_DATE BETWEEN SYSDATE+15 AND SYSDATE+21 THEN 'DUE IN 2 WEEKS'  
        WHEN a.CUSTOMER_OCCUPATION_DATE BETWEEN SYSDATE+22 AND SYSDATE+28 THEN 'DUE IN 3 WEEKS'
        ELSE 'DUE IN 4+ WEEKS'
    END as COD_DUE_DATE
FROM FND_COMPLAINTS a, FTTP_NEWSITES_DWELL_DETAIL b,
unpivot 
( 
a.CUSTOMER_OCCUPATION_DATE
for  COD_DUE_DATE in (LESS THAN 1 WEEK)
)
WHERE a.NAD_KEY = b.NAD(+) AND a.CUSTOMER_OCCUPATION_DATE IS NOT NULL
ORDER BY a.CUSTOMER_OCCUPATION_DATE ASC