Question

以下数据库视图将截止日期截至会计年度（4月1日）：

CREATE OR REPLACE VIEW FISCAL_YEAR_VW AS
SELECT
  CASE
    WHEN to_number(to_char(SYSDATE, 'MM')) < 4 THEN    
      to_date('1-APR-'||to_char(add_months(SYSDATE, -12), 'YYYY'), 'dd-MON-yyyy')
    ELSE
      to_date('1-APR-'||to_char(SYSDATE, 'YYYY'), 'dd-MON-yyyy')
  END AS fiscal_year
FROM
  dual;

这允许我们根据今天的日期计算当前会计年度。

如何简化或优化此计算？

Answer 1

ADD_MONTHS(TRUNC(ADD_MONTHS(SYSDATE,-3),'YYYY'),3)

Answer 2

也许这......

SELECT to_date('01/04/' ||
to_char(extract(YEAR FROM SYSDATE)
- CASE WHEN extract(MONTH FROM SYSDATE) BETWEEN 1 AND 4 THEN 1 ELSE 0 END),
'DD/MM/YYYY') FROM dual;

我想这是另一种选择......

SELECT add_months(trunc(SYSDATE) - extract(DAY FROM SYSDATE) + 1,
- (extract(MONTH FROM SYSDATE) + CASE
WHEN extract(MONTH FROM SYSDATE) <= 4 THEN 12 ELSE 0 END) + 4)
FROM dual;

其他选项是作为返回日期的函数重写，或者如果您只需返回当前会计年度的年份数，则可以简化逻辑，因为您只需要to_char中的逻辑。

Answer 3

TRUNC（）可以有效地应用于具有不同格式掩码的日期。最有针对性的是，trunc(sysdate, 'yyyy')为我们提供了一年中的第一天。所以这将给我们当年的01-APR ......

add_months(trunc(sysdate, 'yyyy'), 3)

这是前一年的日期......

add_months(trunc(add_months(sysdate, -12), 'yyyy'), 3)

所以：

CREATE OR REPLACE VIEW FISCAL_YEAR_VW AS
WITH cte as 
    ( select add_months(trunc(sysdate, 'yyyy'), 3) as this_year
             , add_months(trunc(add_months(sysdate, -12), 'yyyy'), 3) as last_year
      from dual )
SELECT
  CASE
    WHEN SYSDATE >= cte.this_year THEN    
      cte.this_year
    ELSE
      cte.last_year
  END AS fiscal_year
FROM
  cte;

警告：我还没有机会测试这段代码，所以它可能包含错别字。我将在稍后测试并在必要时进行更正。

Answer 4

我发现oracle的TO_CHAR（日期，'Q'）功能对计算财务日历非常有用。下面的查询使用'with'子句来构建两件事

示例数据 - test_dates表。
fiscal_map - 日历季度到会计日历的简单映射。在这个例子中，第4个日历季度是第1个财政季度（10月1日）。

示例：

with test_dates as (
 select sysdate + level * 80 test_date from dual connect by level < 11
),
fiscal_map as (
 select 1 cal, 2 fiscal from dual
 union
 select 2 cal, 3 fiscal from dual
 union
 select 3 cal, 4 fiscal from dual
 union
 select 4 cal, 1 fiscal from dual
)
select 
 test_date, 
 TO_CHAR(test_date, 'Q') cal_quarter, 
 fiscal_map.fiscal,
 (case when CAL < fiscal then 
     TO_CHAR(test_date, 'yyyy') + 0
     else TO_CHAR(test_date, 'yyyy') + 1
 end) FISCAL_YEAR
from test_dates, fiscal_map
where fiscal_map.cal = TO_CHAR(test_date, 'Q')
order by test_date

输出：

TEST_DT CAL_Q   FISCAL Q    FISCAL_YR
22-Jul-10   3   4   2010
10-Oct-10   4   1   2011
29-Dec-10   4   1   2011
19-Mar-11   1   2   2011
07-Jun-11   2   3   2011
26-Aug-11   3   4   2011
14-Nov-11   4   1   2012
02-Feb-12   1   2   2012
22-Apr-12   2   3   2012
11-Jul-12   3   4   2012

Answer 5

select T.USERNAME,T.CREATED,

CASE WHEN EXTRACT (MONTH FROM T.CREATED)>=4 AND EXTRACT (MONTH FROM T.CREATED)<=12 THEN 
TO_CHAR(EXTRACT (YEAR FROM T.CREATED))||'-'||TO_CHAR(EXTRACT (YEAR FROM T.CREATED)+1)
  WHEN EXTRACT (MONTH FROM T.CREATED)<4 THEN 
TO_CHAR(EXTRACT (YEAR FROM T.CREATED)-1)||'-'||TO_CHAR(EXTRACT (YEAR FROM T.CREATED)) ELSE NULL END FY
from sys.dba_users t WHERE T.USERNAME in ('101655','100149')

输出将是：

1   101655  14/01/2014 12:21:53 2013-2014
2   100149  05/05/2012 16:55:00 2012-2013

截断日期到会计年度

5 个答案: