将两个SQL查询与多个表和左联接相结合

Question

有没有一种方法可以组合这两个查询：

第一查询

select top 100
WORK.pzInsKey,
WORK.pyID,
PARTY.MacID,
PARTY.OtherPartyID,
PARTY.CustomerEmail,
ACCOUNT.AccountNumber,
ACCOUNT.AccountName,
ACCOUNT.AdviserCode,
ACCOUNT.AdviserName,
ACCOUNT.DealerCode,
ACCOUNT.DealerName,
ACCOUNT.PrimaryAccount,
ACCOUNT.ProductCategory,
ACCOUNT.ProductCode,
ACCOUNT.ProductDescription,
ACCOUNT.RegisteredState,
DOCUMENT.UDOCID
from 
workTable WORK,
partyTable PARTY,
accountTable ACCOUNT,
documentTable DOCUMENT,
notesTable NOTES
where WORK.pzInsKey = PARTY.pxInsIndexedKey
and WORK.pzInsKey = ACCOUNT.pxInsIndexedKey
and WORK.pyID = DOCUMENT.CaseID

和第二查询

SELECT top 100 
BusinessAreaTbl.businessarea,
ProcessTbl.process,
SubProcessTbl.subprocess
FROM workTable WORK
LEFT OUTER JOIN (SELECT DISTINCT Product_ID businessarea_id, Product businessarea from CaseTypesTable) BusinessAreaTbl
ON WORK.RequestBusinessArea#1 = BusinessAreaTbl.businessarea_id

LEFT OUTER JOIN (SELECT DISTINCT Process_ID, Process, Product_ID businessarea_id from CaseTypesTable) ProcessTbl
ON WORK.RequestProcess#1 = ProcessTbl.process_id
AND ProcessTbl.businessarea_id = WORK.RequestBusinessArea#1

LEFT OUTER JOIN (SELECT DISTINCT SubProcess_ID, SubProcess, Product_ID businessarea_id, Process_ID from CaseTypesTable) SubProcessTbl
ON WORK.RequestSubProcess#1 = SubProcessTbl.subprocess_id
AND SubProcessTbl.businessarea_id = WORK.RequestBusinessArea#1
AND SubProcessTbl.process_id = WORK.RequestProcess#1

基本上是两个查询会产生不同的结果，但是每个查询都包含来自workTable的数据。 在第二个查询中，工作表数据是从CaseTypesTable派生的。

我实质上只是希望将业务区域，流程和子流程字段包含在第一个查询的结果中。

在此先感谢您的帮助。

Answer 1

这应该工作：

(SELECT top 100
w.pzInsKey,
w.pyID,
p.MacID,
p.OtherPartyID,
p.CustomerEmail,
a.AccountNumber,
a.AccountName,
a.AdviserCode,
a.AdviserName,
a.DealerCode,
a.DealerName,
a.PrimaryAccount,
a.ProductCategory,
a.ProductCode,
a.ProductDescription,
a.RegisteredState,
d.UDOCID
FROM workTable w
LEFT JOIN partyTable p
ON w.pzInsKey = p.pxInsIndexedKey
LEFT JOIN accountTable a
ON w.pzInsKey = a.pxInsIndexedKey
LEFT JOIN documentTable d
ON w.pyID = d.CaseID)
UNION 
(SELECT top 100 
ba.businessarea,
pr.process,
spr.subprocess
FROM workTable w

LEFT OUTER JOIN (SELECT DISTINCT Product_ID businessarea_id, Product businessarea from CaseTypesTable) BusinessAreaTbl ba
ON w.RequestBusinessArea#1 = ba.businessarea_id

LEFT OUTER JOIN (SELECT DISTINCT Process_ID, Process, Product_ID businessarea_id from CaseTypesTable) ProcessTbl pr
ON w.RequestProcess#1 = pr.process_id
AND pr.businessarea_id = w.RequestBusinessArea#1

LEFT OUTER JOIN (SELECT DISTINCT SubProcess_ID, SubProcess, Product_ID businessarea_id, Process_ID from CaseTypesTable) SubProcessTbl spr
ON w.RequestSubProcess#1 = spr.subprocess_id
AND spr.businessarea_id = w.RequestBusinessArea#1
AND spr.process_id = w.RequestProcess#1))

使用关键字UNION组合两个或多个单独的SELECT语句。