1
希望这是简单的东西,我只是缺少它,但是考虑下面的例子:检索节点值(甲骨文11gR2的)
with et as(
SELECT
xmlType('<Invoice>
<InvoiceInformation>
<Number>123456</Number>
</InvoiceInformation>
<InvoiceLines>
<InvoiceLine>
<Detail>
<Amount>100</Amount>
<Line>1</Line>
</Detail>
<Type>
<CheesyPotato>
<Instructions>
<CookTime>120</CookTime>
<CookTimeUnits>Minutes</CookTimeUnits>
<CookTemperature>450</CookTemperature>
</Instructions>
</CheesyPotato>
</Type>
</InvoiceLine>
<InvoiceLine>
<Detail>
<Amount>10000</Amount>
<Line>2</Line>
</Detail>
<Type>
<DeathStar>
<Instructions>
<CookTime>4</CookTime>
<CookTimeUnits>5 "parsecs"</CookTimeUnits>
<CookTemperature>1000000</CookTemperature>
</Instructions>
</DeathStar>
</Type>
</InvoiceLine>
<InvoiceLine>
<Detail>
<Amount>250</Amount>
<Line>3</Line>
</Detail>
<Type>
<Quiche>
<Instructions>
<CookTime>75</CookTime>
<CookTimeUnits>Minutes</CookTimeUnits>
<CookTemperature>350</CookTemperature>
</Instructions>
</Quiche>
</Type>
</InvoiceLine>
</InvoiceLines>
</Invoice>
') xt
from dual
)
SELECT
ext.*
FROM
et,
XMLTABLE(
'for $Invoice in $INV/Invoice
for $InvoiceItem in $Invoice/InvoiceLines/InvoiceLine
return <row>
{
$Invoice
,$InvoiceItem
}
</row>'
PASSING et.xt as INV
COLUMNS
INVOICENUMBER VARCHAR2 (6) PATH 'Invoice/InvoiceInformation/Number'
,InvoiceLineNumber VARCHAR2 (5) PATH 'InvoiceLine/Detail/Line'
,Amount VARCHAR2 (5) PATH 'InvoiceLine/Detail/Amount'
,CookTime VARCHAR2 (5) PATH 'InvoiceLine/Type//Instructions/CookTime'
,CookTimeUnits VARCHAR2 (15) PATH 'InvoiceLine/Type//Instructions/CookTimeUnits'
,CookTemperature VARCHAR2 (10) PATH 'InvoiceLine/Type//Instructions/CookTemperature'
) ext
/
--Give我这些结果
INVOICENUMBER INVOICELINENUMBER AMOUNT COOKTIME COOKTIMEUNITS COOKTEMPERATURE
------------- ----------------- ------ -------- --------------- ---------------
123456 1 100 120 Minutes 450
123456 2 10000 4 5 "parsecs" 1000000
123456 3 250 75 Minutes 350
但是我想在这个查询中获取Type值。因此,我如何获得类型的“名称”的子节点,所以我的结果是这样的?
TypeChild INVOICENUMBER INVOICELINENUMBER AMOUNT COOKTIME COOKTIMEUNITS COOKTEMPERATURE
------------------- ------------- ----------------- ------ -------- --------------- ---------------
CheesyPotato 123456 1 100 120 Minutes 450
DeathStar 123456 2 10000 4 5 "parsecs" 1000000
Quiche 123456 3 250 75 Minutes 350
我尝试了各种方法;沿着“ $ InvoiceItem /类型/孩子/名”的无果行,任何帮助,将不胜感激,谢谢
或者,我只是要在这个不正确的方法是什么? (但不能改变的是,我需要能够将这个XML用于查询!)
完美地工作,令人尴尬的多么简单! (只是无法理解我的头)! – Harrison 2012-01-07 13:56:03