我正在尝试修改第三方 xml,以便所有元素都具有来自 T-SQL 的 Id。
这是原始的 xml(部分):
<Tables>
<Table Type="LineItem">
<TableRow>
<Field Name="LI_NominalCode" Type="wd_lit_nominalcode">244234</Field>
<Field Name="LI_NominalDesc" Type="lit_nominaldesc">RENT RECEIVABLE - INTERNAL</Field>
<Field Name="LI_Account" Type="lit_wd_account" />
<Field Name="LI_AccountDesc" Type="lit_wd_accountdesc" />
<Field Name="LI_SecondAccount" Type="lit_wd_2ndaccount" />
<Field Name="LI_SecondAccountDesc" Type="lit_wd_2ndaccountdesc" />
<Field Name="LI_NetValue" Type="lit_vatexcludedamount">4522.89</Field>
<Field Name="LI_EnergyUsage" Type="wd_energyusage">56666</Field>
<Field Name="LI_EnergyType" Type="wd_energytype">ELECTRICITY</Field>
</TableRow>
<TableRow>
<Field Name="LI_NominalCode" Type="wd_lit_nominalcode">150021</Field>
<Field Name="LI_NominalDesc" Type="lit_nominaldesc">Rent Building 1</Field>
<Field Name="LI_Account" Type="lit_wd_account" />
<Field Name="LI_AccountDesc" Type="lit_wd_accountdesc" />
<Field Name="LI_SecondAccount" Type="lit_wd_2ndaccount" />
<Field Name="LI_SecondAccountDesc" Type="lit_wd_2ndaccountdesc" />
<Field Name="LI_NetValue" Type="lit_vatexcludedamount">456.37</Field>
<Field Name="LI_EnergyUsage" Type="wd_energyusage">2805.00</Field>
<Field Name="LI_EnergyType" Type="wd_energytype">ELECTRICITY</Field>
</TableRow>
<TableRow>
<Field Name="LI_NominalCode" Type="wd_lit_nominalcode">2342341</Field>
<Field Name="LI_NominalDesc" Type="lit_nominaldesc">Rent Building 2</Field>
<Field Name="LI_Account" Type="lit_wd_account" />
<Field Name="LI_AccountDesc" Type="lit_wd_accountdesc" />
<Field Name="LI_SecondAccount" Type="lit_wd_2ndaccount" />
<Field Name="LI_SecondAccountDesc" Type="lit_wd_2ndaccountdesc" />
<Field Name="LI_NetValue" Type="lit_vatexcludedamount">355</Field>
<Field Name="LI_EnergyUsage" Type="wd_energyusage">6900</Field>
<Field Name="LI_EnergyType" Type="wd_energytype">ELECTRICITY</Field>
</TableRow>
</Table>
<Table Type="BankAccountTable" />
<Table Type="VATTable" />
</Tables>
如您所见,<Table>
元素没有 Id,因此在此过程的后期很难识别它们。
我想创建一个循环来遍历所有<Table>
元素并执行如下代码段:
set @xml.modify('
insert attribute ID {sql:variable("@idString")}
into (/Documents/Document/Invoice/Tables/Table[@Type="LineItem"]/TableRow)[sql:variable("@id")]')
问题出在最后一个sql变量上,错误是:
XQuery [modify()]:只有 'http://www.w3.org/2001/XMLSchema#decimal?'、'http://www.w3.org/2001/XMLSchema#boolean?' 或 'node()*' 表达式允许作为谓词,找到 'xs:string ?'
这很好用,但我不想总是更改同一行(第 1 行)。
set @xml.modify('
insert attribute ID {sql:variable("@idString")}
into (/Documents/Document/Invoice/Tables/Table[@Type="LineItem"]/TableRow)[1]')
顺便说一句,如果我使用 int 变量而不是这样的字符串:
set @xml.modify('insert attribute ID {sql:variable("@idString")}
into (/Documents/Document/Invoice/Tables/Table[@Type="LineItem"]/TableRow)[sql:variable("@idInt")]')`
我得到另一个错误:
XQuery [modify()]: 'insert' 的目标必须是单个节点,找到 'element(TableRow,xdt:untyped) *