Oracle 計算 YTD、PYTD、QTD、PQTD、MTD、PMTD

Question

我的查詢是

select 
ENTRIES,
SUM( CASE WHEN to_char(to_date(record_date, 'yyyy/mm/dd'),'YYYY') =2020
                 THEN ENTRIES END )         AS "Curr Yr ENTRIES" ,
SUM( CASE WHEN to_char(to_date(record_date, 'yyyy/mm/dd'),'YYYY') =2019
                 THEN ENTRIES END )         AS "PREV Yr ENTRIES" ,
SUM( CASE WHEN to_char(to_date(record_date, 'yyyy/mm/dd'),'MM') =11
                 THEN ENTRIES END ) AS "Current Month ENTRIES" ,
SUM( CASE WHEN to_char(to_date(record_date, 'yyyy/mm/dd'),'MM') =10
                 THEN ENTRIES END ) AS "PREV Month ENTRIES" ,
SUM( CASE WHEN to_char(to_date(record_date, 'yyyy/mm/dd'),'MM') =09
                 THEN ENTRIES END ) AS "PREV TO PREV Month ENTRIES" ,
SUM( CASE WHEN to_char(to_date(record_date,'yyyy/mm/dd'), 'Q')=4
                 THEN ENTRIES END ) AS "Curr Qtr ENTRIES"  ,
SUM( CASE WHEN to_char(to_date(record_date,'yyyy/mm/dd'), 'Q')=3
                 THEN ENTRIES END ) AS "PREV Qtr ENTRIES" 
from market
group by ENTRIES

我是 oracle 的新手，在我的查詢中，我對年、月和季度的值進行了硬編碼。 但我希望我的查詢在不提供任何值的情況下工作，以便它自動選擇值讓我知道如何完成。

Answer 1

您可以使用：

SELECT ENTRIES,
       SUM(
         CASE
         WHEN record_date >= TRUNC( SYSDATE, 'YYYY' )
         AND  record_date <  ADD_MONTHS( TRUNC( SYSDATE, 'YYYY' ), 12 )
         THEN ENTRIES
         END
       ) AS "Curr Yr ENTRIES",
       SUM(
         CASE
         WHEN record_date >= ADD_MONTHS( TRUNC( SYSDATE, 'YYYY' ), -12 )
         AND  record_date <  TRUNC( SYSDATE, 'YYYY' )
         THEN ENTRIES
         END
       ) AS "Prev Yr ENTRIES",
       SUM(
         CASE
         WHEN record_date >= TRUNC( SYSDATE, 'MM' )
         AND  record_date <  ADD_MONTHS( TRUNC( SYSDATE, 'MM' ), 1 )
         THEN ENTRIES
         END
       ) AS "Curr Month ENTRIES",
       SUM(
         CASE
         WHEN record_date >= ADD_MONTHS( TRUNC( SYSDATE, 'MM' ), -1 )
         AND  record_date <  TRUNC( SYSDATE, 'MM' )
         THEN ENTRIES
         END
       ) AS "Prev Month ENTRIES",
       SUM(
         CASE
         WHEN record_date >= TRUNC( SYSDATE, 'Q' )
         AND  record_date <  ADD_MONTHS( TRUNC( SYSDATE, 'Q' ), 3 )
         THEN ENTRIES
         END
       ) AS "Curr Qtr ENTRIES",
       SUM(
         CASE
         WHEN record_date >= ADD_MONTHS( TRUNC( SYSDATE, 'Q' ), -3 )
         AND  record_date <  TRUNC( SYSDATE, 'Q' )
         THEN ENTRIES
         END
       ) AS "Prev Qtr ENTRIES"
from market
group by ENTRIES

（雖然我不相信你想要初始ENTRIES,在SELECT子句或最后的GROUP BY ，相反，可以在整個時期內SUM 。）