扁平化的XML數據

我有一個XML列（沒有輸入）呼籲xml_response扁平化的XML數據

<SEIContent>  
<Request> 
<eq:Charge> 
    <v:Type>MaintCharge</v:Type> 
    <v:Term>0</v:Term> 
    <v:StartMonth>0</v:StartMonth> 
    <v:EndMonth>0</v:EndMonth> 
    <v:Rate>0</v:Rate> 
    <v:RebateRatio>0</v:RebateRatio> 
    <v:MaxRebate>0</v:MaxRebate> 
    <v:TieredCharge> 
    <v:Term>0</v:Term> 
    <v:Rate>0.75</v:Rate> 
    <v:LowerBand>0</v:LowerBand> 
    <v:UpperBand>249999.99</v:UpperBand> 
    <v:BandCurrency>GBP</v:BandCurrency> 
    </v:TieredCharge> 
    <v:TieredCharge> 
    <v:Term>0</v:Term> 
    <v:Rate>0.7</v:Rate> 
    <v:LowerBand>250000</v:LowerBand> 
    <v:UpperBand>499999.99</v:UpperBand> 
    <v:BandCurrency>GBP</v:BandCurrency> 
    </v:TieredCharge> 
    <v:TieredCharge> 
    <v:Term>0</v:Term> 
    <v:Rate>0.6</v:Rate> 
    <v:LowerBand>500000</v:LowerBand> 
    <v:UpperBand>999999.99</v:UpperBand> 
    <v:BandCurrency>GBP</v:BandCurrency> 
    </v:TieredCharge> 
    <v:TieredCharge> 
    <v:Term>0</v:Term> 
    <v:Rate>0.5</v:Rate> 
    <v:LowerBand>1000000</v:LowerBand> 
    <v:UpperBand>9999999.99</v:UpperBand> 
    <v:BandCurrency>GBP</v:BandCurrency> 
    </v:TieredCharge> 
</eq:Charge> 
<eq:Charge> 
    <v:Type>MaintCharge</v:Type> 
    <v:Term>0</v:Term> 
    <v:StartMonth>0</v:StartMonth> 
    <v:EndMonth>59</v:EndMonth> 
    <v:Rate>1.5</v:Rate> 
    <v:RebateRatio>0</v:RebateRatio> 
    <v:MaxRebate>0</v:MaxRebate> 
</eq:Charge> 
<eq:Charge> 
    <v:Type>MaintCharge</v:Type> 
    <v:Term>0</v:Term> 
    <v:StartMonth>60</v:StartMonth> 
    <v:EndMonth>0</v:EndMonth> 
    <v:Rate>0.5</v:Rate> 
    <v:RebateRatio>0</v:RebateRatio> 
    <v:MaxRebate>0</v:MaxRebate> 
</eq:Charge> 
<eq:Charge> 
    <v:Type>QAC</v:Type> 
    <v:Basis>FixedAmount</v:Basis> 
    <v:Term>0</v:Term> 
    <v:StartMonth>0</v:StartMonth> 
    <v:EndMonth>0</v:EndMonth> 
    <v:Rate>105</v:Rate> 
    <v:RebateRatio>0</v:RebateRatio> 
    <v:MaxRebate>0</v:MaxRebate> 
</eq:Charge> 
</Request> 
<Response> 
    <eq:Ref>QV00000393</eq:Ref> 
</Response> 
</SEIContent>

所以，你會發現，有些費用包含重複元素TieredCharge和一些不以下XML數據

我已經寫了下面的查詢：即使

WITH XMLNAMESPACES('http://lu/blah' AS eq, 'http://lu/blah2' AS v, 
    DEFAULT 'http://lu/blah3' 
SELECT 
nref.value('Response[1]/eqRef[1]', 'nvarchar(200)') Ref, 
ncharge.value('v:Type[1]', 'nvarchar(50)') ChargeType, 
ncharge.value('v:Basis[1]', 'nvarchar(50)') ChargeBasis, 
ncharge.value('v:Term[1]', 'int') Term, 
ncharge.value('v:StartMonth[1]', 'int') StartMonth, 
ncharge.value('v:EndMonth[1]', 'int') EndMonth, 
ncharge.value('v:Rate[1]', 'money') Rate, 
ncharge.value('v:RebateRatio[1]', 'money') RebateRatio, 
ncharge.value('v:MaxRebate[1]', 'money') MaxRebate, 
tcharge.value('v:Term[1]', 'int') TieredTerm, 
tcharge.value('v:Rate[1]', 'money') TieredRate, 
tcharge.value('v:LowerBand[1]', 'money') TieredLowerBand, 
tcharge.value('v:UpperBand[1]', 'money') TieredUpperBand 
INTO #TempCharges 
FROM xml_response CROSS APPLY response_body.nodes('//SEIContent') AS Quote(nref) 
CROSS APPLY response_body.nodes('//Request//eq:Charge') AS Charge(ncharge) 
CROSS APPLY response_body.nodes('//Request//eq:Charge//v:TieredCharge') AS TieredCharge(tcharge) 
WHERE nref.value('Request[1]/eq:Product[1]', 'nvarchar(60)') <> 'AVL' 

select * from #TempCharges

因此，儘管這個變平的XML，重複什麼我得到行如果EQ：計費要素不包含v：TieredCharge重複元素？

例如，我得到4行，其中電荷類型是QAC，即使只有一個這種類型的元素？

我該如何查詢，以便每個Charge元素只有一行，除非它下面有重複的子元素，在這種情況下，我只會得到每個元素重複的行？

所以我應該得到的東西是這樣的：

MaintChange TieredCharge1 row 
MaintChange TieredCharge2 row 
MaintChange TieredCharge3 row 
MaintChange TieredCharge4 row 
MaintCharge 
MaintCharge 
QAC

來源

2011-02-16 Bernard

所以訣竅是使用OUTER APPLY查詢的最後一位 - 它有點像一個內部聯接。然後它工作。

來源

2011-02-18 17:06:50 Bernard

扁平化的XML數據

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