如何将 sysdate 列添加到包含左外连接的查询中

Question

我需要一点帮助来向我的查询添加一个列，该列将用作 'date extracted' 列。我的原始查询如下所示：

SELECT 
PR.PARENT_ID,
PR.ID as Record_ID,   
PROJECT.NAME as Project_Name,
PR_STATUS_TYPE.NAME  as RECORD_State, 
PERSON_RELATION.NAME as ORIGINATOR,
PR.DATE_OPENED, 
TW_V_AUDIT.S_VALUE as aud,
PR.NAME TITLE
FROM (PR PR 
LEFT OUTER JOIN PROJECT PROJECT ON PR.PROJECT_ID=PROJECT.ID) 
LEFT OUTER JOIN PERSON_RELATION ON PERSON_RELATION.ID = PR.ORIGINATOR_REL_ID
LEFT OUTER JOIN PR_STATUS_TYPE PR_STATUS_TYPE ON PR.STATUS_TYPE=PR_STATUS_TYPE.ID
LEFT OUTER JOIN TW_V_AUDIT ON TW_V_AUDIT.PR_ID = PR.ID
WHERE  
PROJECT.NAME='Audit' 
GROUP BY
PERSON_RELATION.NAME,
PR.ID, 
PR.PARENT_ID,
PROJECT.NAME,
PR_STATUS_TYPE.NAME,
PR.DATE_OPENED,
TW_V_AUDIT.S_VALUE,
PR.NAME
ORDER BY
RECORD_ID;

我想添加一个显示系统日期的列，它是以下查询：

Select TO_CHAR(SYSDATE, 'MM-DD-YYYY HH24:MI:SS') from dual

我该怎么做？我正在使用 sql 开发人员。如果我需要更多信息，请告诉我。再次感谢大家。

桑尼

Answer 1

只需添加这部分：

TO_CHAR(SYSDATE, 'MM-DD-YYYY HH24:MI:SS') as System_Date

添加到您的 SELECT 列表

Answer 2

只需将日期列添加到您的 Select 声明中：

SELECT 
PR.PARENT_ID,
PR.ID as Record_ID,   
PROJECT.NAME as Project_Name,
PR_STATUS_TYPE.NAME  as RECORD_State, 
PERSON_RELATION.NAME as ORIGINATOR,
PR.DATE_OPENED, 
TW_V_AUDIT.S_VALUE as aud,
PR.NAME TITLE,
TO_CHAR(SYSDATE, 'MM-DD-YYYY HH24:MI:SS') as date
FROM (PR PR 
LEFT OUTER JOIN PROJECT PROJECT ON PR.PROJECT_ID=PROJECT.ID) 
LEFT OUTER JOIN PERSON_RELATION ON PERSON_RELATION.ID = PR.ORIGINATOR_REL_ID
LEFT OUTER JOIN PR_STATUS_TYPE PR_STATUS_TYPE ON PR.STATUS_TYPE=PR_STATUS_TYPE.ID
LEFT OUTER JOIN TW_V_AUDIT ON TW_V_AUDIT.PR_ID = PR.ID
WHERE  
PROJECT.NAME='Audit' 
GROUP BY
PERSON_RELATION.NAME,
PR.ID, 
PR.PARENT_ID,
PROJECT.NAME,
PR_STATUS_TYPE.NAME,
PR.DATE_OPENED,
TW_V_AUDIT.S_VALUE,
PR.NAME
ORDER BY
RECORD_ID;

如何将 sysdate 列添加到包含左外连接的查询中

How to add a sysdate column to a query containing left outer joins

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