Oracle Apex 中财政年度的 SQL 触发器

Posted 2023-03-28

【中文标题】Oracle Apex 中财政年度的 SQL 触发器

【英文标题】：SQL trigger for fiscal year in Oracle Apex

【发布时间】：2021-03-05 14:48:40

【问题描述】：

我有这个代码来获取财政年度。

from
(SELECT

CASE EXTRACT (MONTH FROM SYSDATE)WHEN 1 THEN EXTRACT(YEAR FROM SYSDATE)-1 
WHEN 2 THEN EXTRACT(YEAR FROM SYSDATE)-1
WHEN 3 THEN EXTRACT(YEAR FROM SYSDATE)-1
ELSE EXTRACT(YEAR FROM SYSDATE)
END
AS PR_YEAR  , 


CASE EXTRACT (MONTH FROM SYSDATE)
    WHEN 04 THEN 1
    WHEN 05 THEN 1
    WHEN 06 THEN 1
    WHEN 07 THEN 1
    WHEN 08 THEN 1
    WHEN 09 THEN 1
    WHEN 10 THEN 2
    WHEN 11 THEN 2
    WHEN 12 THEN 2
    WHEN 01 THEN 2
    WHEN 02 THEN 2
    WHEN 03 THEN 2
END AS  PR_MONTH
 FROM dual)

我想使用触发器将之前的代码在 Apex 的 Oracle 数据库表名称 MM_Inventory 的列名称 Fiscaly 中插入的数据插入，我有它是这样的：

create or replace TRIGGER add_fiscaly
BEFORE INSERT ON MM_Inventory
FOR EACH ROW
BEGIN
    SELECT PR_YEAR||PR_MONTH
from
(SELECT

CASE EXTRACT (MONTH FROM SYSDATE)WHEN 1 THEN EXTRACT(YEAR FROM SYSDATE)-1 
WHEN 2 THEN EXTRACT(YEAR FROM SYSDATE)-1
WHEN 3 THEN EXTRACT(YEAR FROM SYSDATE)-1
ELSE EXTRACT(YEAR FROM SYSDATE)
END
AS PR_YEAR  , 


CASE EXTRACT (MONTH FROM SYSDATE)
    WHEN 04 THEN 1
    WHEN 05 THEN 1
    WHEN 06 THEN 1
    WHEN 07 THEN 1
    WHEN 08 THEN 1
    WHEN 09 THEN 1
    WHEN 10 THEN 2
    WHEN 11 THEN 2
    WHEN 12 THEN 2
    WHEN 01 THEN 2
    WHEN 02 THEN 2
    WHEN 03 THEN 2
END AS  PR_MONTH
 FROM dual)
END;

但我不知道它有什么问题或遗漏，我会很感激你的帮助。

【参考方案1】：

这里的触发器中需要一个 INTO 子句：

SELECT PR_YEAR||PR_MONTH
  INTO :NEW.Fiscaly
from ...

我相信这个简化的代码可以达到同样的效果：

create or replace TRIGGER add_fiscaly
BEFORE INSERT ON MM_Inventory
FOR EACH ROW
BEGIN
   :NEW.Fiscaly :=  CASE WHEN EXTRACT (MONTH FROM SYSDATE) < 4
                       THEN EXTRACT(YEAR FROM SYSDATE)-1 
                       ELSE EXTRACT(YEAR FROM SYSDATE)
                    END
                    || CASE WHEN EXTRACT (MONTH FROM SYSDATE) BETWEEN 4 AND 9
                          THEN 1
                          ELSE 2
                       END;
END;
/

【讨论】：

谢谢，但现在我收到此消息：“第 31 行错误：PLS-00103：在预期以下情况之一时遇到符号“文件结尾”：”。该行是END AS PR_MONTH FROM dual)

您在FROM dual) 后面缺少一个分号来结束语句。

成功了，非常感谢。感谢您的帮助