How do i get the `ResponseDescription` value in Microsoft Sql? - sql

Question

So the column i'm querying has an XML data that looks like this
<soap:Envelope xmlns:soap="http://google.com/">
<soap:Body>
<ns2:response xmlns:ns2="http://stackoverflow.com/">
<trackingId>1375321435</trackingId>
<responseCode>202</responseCode>
<responseDescription>Request completed successfully</responseDescription>
<detail><?xml version="1.0" encoding="UTF-8" standalone="yes"?> <LoanProcessResponse> <ResponseCode>E4284</ResponseCode> <ResponseDescription>The minimum value date allowed for this account must be greater than [08-12-2022].: acctDisburseTranLA.valueDate</ResponseDescription> <status>FAILURE</status> </LoanProcessResponse></detail>
</ns2:response>
</soap:Body>
</soap:Envelope>
and my query looks like the below
WITH XMLNAMESPACES('http://google.com/' AS soap, 'http://stackoverflow.com/' AS ns2)
SELECT
timeSent,
accountNo,
isSuccessful,
try_convert(xml, responsePayload).query('/soap:Envelope/soap:Body/ns2:response/detail/LoanProcessResponse/ResponseDescription') AS response
from my_table
where accountNo = '000000008'
ORDER BY timesent desc;
Can you help me get the value of the <ResponseDescription> without the tag?

Answer 1

Please try the following solution.
It is better to use XML data type for the responsePayload column.
SQL
-- DDL and sample data population, start
DECLARE #tbl TABLE (id INT IDENTITY PRIMARY KEY, responsePayload NVARCHAR(MAX));
INSERT #tbl (responsePayload) VALUES
(N'<soap:Envelope xmlns:soap="http://google.com/">
<soap:Body>
<ns2:response xmlns:ns2="http://stackoverflow.com/">
<trackingId>1375321435</trackingId>
<responseCode>202</responseCode>
<responseDescription>Request completed successfully</responseDescription>
<detail><?xml version="1.0" encoding="UTF-8" standalone="yes"?> <LoanProcessResponse> <ResponseCode>E4284</ResponseCode> <ResponseDescription>The minimum value date allowed for this account must be greater than [08-12-2022].: acctDisburseTranLA.valueDate</ResponseDescription> <status>FAILURE</status> </LoanProcessResponse></detail>
</ns2:response>
</soap:Body>
</soap:Envelope>');
-- DDL and sample data population, end
;WITH XMLNAMESPACES('http://google.com/' AS soap, 'http://stackoverflow.com/' AS ns2)
SELECT ID
, responseDescription = TRY_CAST(responsePayload AS XML)
.value('(/soap:Envelope/soap:Body/ns2:response/responseDescription/text())[1]', 'VARCHAR(200)')
FROM #tbl;
Output
ID
responseDescription
1
Request completed successfully