合并三个查询的结果并在另一个查询中使用它们

Question

我想使用这三个查询：

第一个查询：

SELECT 
AMICOS.PNRREG.PN, Max(AMICOS.HISTORYSTOCKFLOAT.HISTORYDATE) AS lastissue 
FROM 
AMICOS.HISTORYSTOCKFLOAT 
INNER JOIN 
AMICOS.PNRREG ON AMICOS.HISTORYSTOCKFLOAT.PARTID = AMICOS.PNRREG.PARTID 
WHERE 
(((AMICOS.HISTORYSTOCKFLOAT.ACTION)='ISSUE') AND    
((AMICOS.HISTORYSTOCKFLOAT.HISTORYDATE)<to_date('31032019','DDMMYYYY')+1)) 
GROUP BY 
AMICOS.PNRREG.PN;

第二个查询：

SELECT 
AMICOS.PNRREG.PN, Max(AMICOS.HISTORY.HISTORYDATE) AS lastissuehistory
FROM
AMICOS.HISTORY 
INNER JOIN 
AMICOS.PNRREG ON AMICOS.HISTORY.PARTID = AMICOS.PNRREG.PARTID
WHERE 
(((AMICOS.HISTORY.HISTORYACTION)='ISSUE') AND 
((AMICOS.HISTORY.HISTORYDATE)<to_date('31032019','DDMMYYYY')+1))
GROUP BY 
AMICOS.PNRREG.PN;

第三个查询：

SELECT 
AMICOS.PNRREG.PN, Max(AMICOS.HISTORYSTOCKFLOAT.HISTORYDATE) AS lastpurchase
FROM
AMICOS.HISTORYSTOCKFLOAT 
INNER JOIN 
AMICOS.PNRREG ON AMICOS.HISTORYSTOCKFLOAT.PARTID = AMICOS.PNRREG.PARTID
WHERE 
(((AMICOS.HISTORYSTOCKFLOAT.HISTORYDATE)<to_date('31032019','DDMMYYYY')+1))
GROUP BY 
AMICOS.PNRREG.PN, AMICOS.HISTORYSTOCKFLOAT.ACTION
HAVING 
(((AMICOS.HISTORYSTOCKFLOAT.ACTION)='PURCHASE'));

最后一个查询将这些放在一起：

SELECT AMICOS.PNRREG.PN, AMICOS.IRCABCCAT.ABC_CATEGORY, AMICOS.IRC.PRIMUTILISATION, AMICOS.PNRREG.DESCRIPTION, AMICOS.HISTORYSTOCKFLOAT.ACCOUNTNO, AMICOS.HISTORYSTOCKFLOAT.HISTORYDATE, AMICOS.HISTORYSTOCKFLOAT.STOCK_FLOAT, AMICOS.HISTORYSTOCKFLOAT.STOCK_PRICE, AMICOS.HISTORYSTOCKFLOAT.STOCKVALUE, lastpurchase.lastpurchase, lastissue.lastissue, lastissuehistory.lastissuehistory
FROM ((AMICOS.PNRREG LEFT JOIN lastissuehistory ON AMICOS.PNRREG.PN = lastissuehistory.PN LEFT JOIN lastissue ON AMICOS.PNRREG.PN = lastissue.PN) 
LEFT JOIN lastpurchase ON AMICOS.PNRREG.PN = lastpurchase.PN);

我已经尝试了 UNION、JOIN 将这些查询放在一起，以从最后一个查询中获得一个结果，该结果取决于其他三个查询。

当我对前三个查询进行预定义查询时，它适用于 MS Access。但它不适用于Oracle SQL Developer查询工具。

我怎样才能做到这一点？

Answer 1

看起来CTE(公用表表达式，即WITH分解子句(可能会有所帮助。像这样：

with 
first  as (select pn, ... from ...),
second as (select pn, ... from ...),
third  as (select pn, ... from ...)
-- now, join them
select f.pn, s.some_column, t.some_other_column
from first f join second s on s.pn = f.pn
join third t on t.pn = f.pn

Answer 2

您可以使用With 或以下选项

SELECT 
AMICOS.PNRREG.PN, 
AMICOS.IRCABCCAT.ABC_CATEGORY, 
AMICOS.IRC.PRIMUTILISATION, 
AMICOS.PNRREG.DESCRIPTION, 
AMICOS.HISTORYSTOCKFLOAT.ACCOUNTNO, 
AMICOS.HISTORYSTOCKFLOAT.HISTORYDATE, 
AMICOS.HISTORYSTOCKFLOAT.STOCK_FLOAT, 
AMICOS.HISTORYSTOCKFLOAT.STOCK_PRICE, 
AMICOS.HISTORYSTOCKFLOAT.STOCKVALUE, 
lastpurchase.lastpurchase, 
lastissue.lastissue, 
lastissuehistory.lastissuehistory
FROM 
AMICOS.PNRREG
LEFT JOIN (SELECT 
AMICOS.PNRREG.PN, 
Max(AMICOS.HISTORY.HISTORYDATE) AS lastissuehistory
FROM 
AMICOS.HISTORY 
INNER JOIN AMICOS.PNRREG ON AMICOS.HISTORY.PARTID = AMICOS.PNRREG.PARTID
WHERE (((AMICOS.HISTORY.HISTORYACTION)='ISSUE') AND ((AMICOS.HISTORY.HISTORYDATE)<to_date('31032019','DDMMYYYY')+1))
GROUP BY AMICOS.PNRREG.PN) lastissuehistory ON AMICOS.PNRREG.PN = lastissuehistory.PN 
LEFT JOIN (SELECT 
AMICOS.PNRREG.PN, 
Max(AMICOS.HISTORYSTOCKFLOAT.HISTORYDATE) AS lastissue 
FROM 
AMICOS.HISTORYSTOCKFLOAT 
INNER JOIN AMICOS.PNRREG ON AMICOS.HISTORYSTOCKFLOAT.PARTID = AMICOS.PNRREG.PARTID 
WHERE 
(((AMICOS.HISTORYSTOCKFLOAT.ACTION)='ISSUE') AND ((AMICOS.HISTORYSTOCKFLOAT.HISTORYDATE)<to_date('31032019','DDMMYYYY')+1)) 
GROUP BY AMICOS.PNRREG.PN)lastissue ON AMICOS.PNRREG.PN = lastissue.PN
LEFT JOIN (SELECT 
AMICOS.PNRREG.PN, 
Max(AMICOS.HISTORYSTOCKFLOAT.HISTORYDATE) AS lastpurchase
FROM 
AMICOS.HISTORYSTOCKFLOAT 
INNER JOIN AMICOS.PNRREG ON AMICOS.HISTORYSTOCKFLOAT.PARTID = AMICOS.PNRREG.PARTID
WHERE (((AMICOS.HISTORYSTOCKFLOAT.HISTORYDATE)<to_date('31032019','DDMMYYYY')+1))
GROUP BY AMICOS.PNRREG.PN, AMICOS.HISTORYSTOCKFLOAT.ACTION
HAVING (((AMICOS.HISTORYSTOCKFLOAT.ACTION)='PURCHASE'))) lastpurchase ON AMICOS.PNRREG.PN = lastpurchase.PN

Answer 3

@Littlefoot 我尝试了这样的事情：

WITH
first as (SELECT AMICOS.PNRREG.PN, Max(AMICOS.HISTORYSTOCKFLOAT.HISTORYDATE) AS lastissue FROM AMICOS.HISTORYSTOCKFLOAT INNER JOIN AMICOS.PNRREG ON                   AMICOS.HISTORYSTOCKFLOAT.PARTID = AMICOS.PNRREG.PARTID WHERE (((AMICOS.HISTORYSTOCKFLOAT.ACTION)='ISSUE') AND                                           ((AMICOS.HISTORYSTOCKFLOAT.HISTORYDATE)<to_date('31032019','DDMMYYYY')+1)) GROUP BY AMICOS.PNRREG.PN),
second as (SELECT AMICOS.PNRREG.PN, Max(AMICOS.HISTORY.HISTORYDATE) AS lastissuehistory
FROM AMICOS.HISTORY INNER JOIN AMICOS.PNRREG ON AMICOS.HISTORY.PARTID = AMICOS.PNRREG.PARTID
WHERE (((AMICOS.HISTORY.HISTORYACTION)='ISSUE') AND ((AMICOS.HISTORY.HISTORYDATE)<to_date('31032019','DDMMYYYY')+1))
GROUP BY AMICOS.PNRREG.PN),
third as (SELECT AMICOS.PNRREG.PN, Max(AMICOS.HISTORYSTOCKFLOAT.HISTORYDATE) AS lastpurchase
FROM AMICOS.HISTORYSTOCKFLOAT INNER JOIN AMICOS.PNRREG ON AMICOS.HISTORYSTOCKFLOAT.PARTID = AMICOS.PNRREG.PARTID
WHERE (((AMICOS.HISTORYSTOCKFLOAT.HISTORYDATE)<to_date('31032019','DDMMYYYY')+1))
GROUP BY AMICOS.PNRREG.PN, AMICOS.HISTORYSTOCKFLOAT.ACTION
HAVING (((AMICOS.HISTORYSTOCKFLOAT.ACTION)='PURCHASE')))
SELECT AMICOS.PNRREG.PN, AMICOS.IRCABCCAT.ABC_CATEGORY, AMICOS.IRC.PRIMUTILISATION,
AMICOS.PNRREG.DESCRIPTION, AMICOS.HISTORYSTOCKFLOAT.ACCOUNTNO,
AMICOS.HISTORYSTOCKFLOAT.HISTORYDATE, AMICOS.HISTORYSTOCKFLOAT.STOCK_FLOAT,
AMICOS.HISTORYSTOCKFLOAT.STOCK_PRICE, AMICOS.HISTORYSTOCKFLOAT.STOCKVALUE,
lastpurchase.lastpurchase, lastissue.lastissue, lastissuehistory.lastissuehistory
FROM ((AMICOS.PNRREG LEFT JOIN lastpurchase ON AMICOS.PNRREG.PN = lastpurchase.PN
LEFT JOIN lastissue ON AMICOS.PNRREG.PN = lastissue.PN) LEFT JOIN lastissuehistory ON
AMICOS.PNRREG.PN = lastissuehistory.PN;

但它一直告诉我"选择列表与 GROUP BY 不一致;将分组依据条款修改为：AMICOS.PNRREG.PN，AMICOS。历史股票浮动。行动，马克斯(阿米科斯。历史股票浮动。历史日期(">

问候 埃内拉克

Answer 4

在本指南的帮助下，我设法完成了这项工作： 在 SSRS 中使用查找集函数

来自凯瑟琳熊的一句话。

问候

埃内拉克