[英]Oracle XMLTYPE extract root prolog value
SELECT * FROM v$version;
*Oracle Database 12c Enterprise Edition Release 12.1.0.2.0 - 64bit Production
PL/SQL Release 12.1.0.2.0 - Production
"CORE 12.1.0.2.0 Production"
TNS for Linux: Version 12.1.0.2.0 - Production
NLSRTL Version 12.1.0.2.0 - Production*
I have sample Query with XML like below:我有 XML 的示例查询,如下所示:
with t(xml) as
(
select xmltype(
'<SSO_XML
xmlns:xsd="http://www.w3.org/2001/XMLSchema"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
TimeStamp="2020-08-05T21:57:23Z"
Target="Production"
Version="1.0"
TransactionIdentifier="PLAN_A"
SequenceNmbr="123456"
xmlns="http://www.w3.org/2001/XMLSchema">
<PlanCode PlanCodeCode="CHOICE">
<S_DAYS FARE="10" Start="2020-08-07" End="2020-10-30" Mon="true" Tue="true" Weds="true" Thur="true" Fri="true" Sat="true" Sun="true">
<STUDENT>
<DIVISION ORIGINAL="150.05" Code="Flat" S_CODE="1" />
<DIVISION ORIGINAL="150.05" Code="Flat" S_CODE="2" />
</STUDENT>
</S_DAYS>
</PlanCode>
</SSO_XML>')
from dual
)
select h.PlanCodeCode
,b.Original
,b.code
,b.s_code
from t
cross join
xmltable(xmlnamespaces(default 'http://www.w3.org/2001/XMLSchema'),
'/SSO_XML'
passing t.xml
columns PlanCodeCode varchar2(100) path './PlanCode/@PlanCodeCode',
attributes xmltype path './PlanCode'
) h
cross join xmltable(xmlnamespaces(default 'http://www.w3.org/2001/XMLSchema'),
'PlanCode/S_DAYS/STUDENT/DIVISION'
passing h.attributes
columns
ORIGINAL number path '@ORIGINAL',
Code varchar2(100) path '@Code',
S_CODE number path '@S_CODE'
) b;
Output: Output:
I am trying to fetch the values below within the query or a new query: Is there any way to do that?我正在尝试在查询或新查询中获取以下值:有什么办法吗? Any help / direction appreciated.
任何帮助/方向表示赞赏。
You just have to complete your first XMLTABLE query (h) in this way:您只需以这种方式完成您的第一个 XMLTABLE 查询 (h):
target varchar2(100) path '/SSO_XML/@Target',
transactionId varchar2(100) path '/SSO_XML/@TransactionIdentifier'
You are trying to include two attributes, which are accessed with a @
prefix;您正在尝试包含两个属性,它们使用
@
前缀访问; so your query can be modified to:因此您的查询可以修改为:
select h.PlanCodeCode
,h.target
,h.transactionIdentifier
,b.Original
,b.code
,b.s_code
from t
cross join
xmltable(xmlnamespaces(default 'http://www.w3.org/2001/XMLSchema'),
'/SSO_XML'
passing t.xml
columns PlanCodeCode varchar2(100) path './PlanCode/@PlanCodeCode',
target varchar2(100) path '@Target',
transactionIdentifier varchar2(100) path '@TransactionIdentifier',
attributes xmltype path './PlanCode'
) h
...
In this case you could also do this in a single XMLTable call, which is shorter but possibly harder to read and maintain:在这种情况下,您也可以在单个 XMLTable 调用中执行此操作,该调用更短,但可能更难阅读和维护:
select b.PlanCodeCode
,b.target
,b.transactionIdentifier
,b.Original
,b.code
,b.s_code
from t
cross join
xmltable(xmlnamespaces(default 'http://www.w3.org/2001/XMLSchema'),
'/SSO_XML/PlanCode/S_DAYS/STUDENT/DIVISION'
passing t.xml
columns PlanCodeCode varchar2(100) path './../../../@PlanCodeCode',
target varchar2(100) path './../../../../@Target',
transactionIdentifier varchar2(100) path './../../../../@TransactionIdentifier',
ORIGINAL number path '@ORIGINAL',
Code varchar2(100) path '@Code',
S_CODE number path '@S_CODE'
) b;
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