Navigate multiple nodes Xquery xml SQL Server 2019 - sql

Question

Hi i have the current XML:
<?xml version="1.0" encoding="utf-8"?>
<tcpos-export>
<transactions>
<transaction>
<code>1</code>
<description>MAXI MERCADO SELECTO</description>
</shop>
<code>2</code>
<description>MAÑANITA PANADERIA</description>
</till>
<cashier>
<code>2004</code>
<description>NELSON PANADERIA</description>
<first-name>NELSON PANADERIA</first-name>
</cashier>
<trans-item type="article">
<hash-code>832129</hash-code>
<code>30237</code>
<quantity>1</quantity>
<unit-price>0.50</unit-price>
<total-price>0.50</total-price>
</trans-item>
<payment type="cash">
<code>01</code>
<description>Efectivo</description>
<description-translations />
<amount>0.50</amount>
<prepayment>false</prepayment>
<signature-required>false</signature-required>
<payment-timestamp>18.08.2021 06:51:27</payment-timestamp>
<cash-change>4.50</cash-change>
<cash-given>5.00</cash-given>
</payment>
with this xquery sql 2019:
--procesar articulos del dia de venta
SELECT
trans.value('(shop/description/text())[1]','varchar(100)') tienda,
trans.value('(till/code/text())[1]','varchar(100)') caja,
trans.value('(cashier/code/text())[1]','varchar(100)') cajero,
trans.value('(beginning-timestamp/text())[1]','varchar(100)') fecha,
trans.value('(trans-num/text())[1]','varchar(100)') transaccion,
item.value('(code/text())[1]','varchar(100)') itemcode,
item.value('(description/text())[1]','varchar(100)') description,
item.value('(hash-code/text())[1]','int') hashcode
FROM [dbo].[XmlImport] xi
CROSS APPLY xi.[LoadedXML].nodes('tcpos-export/transactions/transaction') x1(trans)
CROSS APPLY x1.trans.nodes('trans-item[
hash-code/text() and
not( unit-price[contains(text()[1], "-")] ) and
not( taxable-amount[contains(text()[1], "-")] ) and
not( delete-operator-id/text() )
]') x2(item)
CROSS APPLY (VALUES (
item.value('(quantity/text())[1]','numeric(10,3)'),
item.value('(weight/text())[1]','numeric(10,3)'),
item.value('(vat-code/text())[1]','varchar(100)')
) ) v(quantity, weight, vatcode)
ORDER BY hashcode;
im already getting those columns correctly from transactions node example cashier, till. In adition im getting info from node. But, im confused in how i can get info from the next node
<payment type="cash">
<code>01</code>
<description>Efectivo</description>
<description-translations />
i would like to get code and description
i tried the following:
adding this as additional cross apply
CROSS APPLY xi.[LoadedXML].nodes('tcpos-export/transactions/transaction') x3(payments)
CROSS APPLY x3.payments.nodes('payment[
code/text()
]') x4(payment)
and in select at the end:
payment.value('(code/text())[1]','varchar(100)')
but when i run the query it stays running and running, and got freezed. I dont know what else i can do.
Please give me some tips.
thank you

Answer 1

You have two options:
You can just select the values directly in your select
SELECT
trans.value('(shop/description/text())[1]','varchar(100)') tienda,
trans.value('(payment/amount/text())[1]','numeric(18,2)') caja,
-- etc....
FROM [dbo].[XmlImport] xi
-- etc....
Alternatively, you can do another CROSS APPLY nodes. This is what you were trying to do, but it should be x1.trans.nodes('payment') because you want to break out each Payment node from transaction, not from the root XML.
Note that the VALUES clause I added in answer to your previous question was needed only because we needed to refer multiple times to the same node.
SELECT
trans.value('(shop/description/text())[1]','varchar(100)') tienda,
trans.value('(till/code/text())[1]','varchar(100)') caja,
trans.value('(cashier/code/text())[1]','varchar(100)') cajero,
trans.value('(beginning-timestamp/text())[1]','varchar(100)') fecha,
trans.value('(trans-num/text())[1]','varchar(100)') transaccion,
item.value('(code/text())[1]','varchar(100)') itemcode,
item.value('(description/text())[1]','varchar(100)') description,
item.value('(hash-code/text())[1]','int') hashcode
payment.value('(code/text())[1]','int') paymentCode
FROM [dbo].[XmlImport] xi
CROSS APPLY xi.[LoadedXML].nodes('tcpos-export/transactions/transaction') x1(trans)
CROSS APPLY x1.trans.nodes('trans-item[
hash-code/text() and
not( unit-price[contains(text()[1], "-")] ) and
not( taxable-amount[contains(text()[1], "-")] ) and
not( delete-operator-id/text() )
]') x2(item)
CROSS APPLY x1.trans.nodes('payment') x3(payment)
ORDER BY hashcode;
Note that if there might be no payment node then you need OUTER APPLY not CROSS APPLY