How to compare value at specific position from DB to JSON variable in JMeter - jmeter

Question

In Database their is field as Diagnosis Reference and its value is like "123456"
In JSON value should display as :
Diagnosis Reference 1 : 1 ( Value at position 1)
Diagnosis Reference 2 : 2 ( Value at position 2)
Diagnosis Reference 3 : 3 ( Value at position 3)
Diagnosis Reference 4 : 4 ( Value at position 4)
Diagnosis Reference 5 : 5 ( Value at position 5)
Diagnosis Reference 6 : 6 ( Value at position 6)
How can I fetch value at each position from DB and compare it with JSON variables using JMeter?

Answer 1

You can save the value from the database into a JMeter Variable using JDBC Request sampler configured like:
then my assumption is that you need to execute some HTTP Request to get the JSON from some API endpoint.
At this stage you can add a JSR223 Assertion to parse the JSON response and compare it with the variable from the JDBC Request sampler
If your JSON response looks like:
[
{
"Diagnosis Reference 1": 1
},
{
"Diagnosis Reference 2": 2
},
{
"Diagnosis Reference 3": 3
},
{
"Diagnosis Reference 4": 4
},
{
"Diagnosis Reference 5": 5
},
{
"Diagnosis Reference 6": 6
}
]
you could use the code like:
def response = new groovy.json.JsonSlurper().parse(prev.getResponseData())
vars.get('diagnosisReference_1').toCharArray().eachWithIndex { number, index ->
if (response[index].get('Diagnosis Reference ' + number) != Character.getNumericValue(number)) {
AssertionResult.setFailure(true)
AssertionResult.setFailureMessage('Numbers mismatch, expected: ' + number + ', got: ' + response[index].get('Diagnosis Reference ' + number))
}
}