SQL query to JSON data - json

Question

We've JSON entry in the MS SQL database. I would like to export JSON entry in the "Data" column which match with the list of EMPNO. Could someone please help?
ColumnName: Data
Data inside the column:
output:{
"Request":{
"Person":{
"DisplayName":"Test User",
"EMPNO":"000001",
"Entity":"01",
"Country":"AA"
},
"DomainOverride":null,
"ReasonForGen":"Only",
"Email":"123#test.com",
"CurrentSIP":"123#test.com"
},
"EmailAddress":"123#testcom",
"SIPAddress":"123#test.com",
"Status":"NoChange"
}
Query in layman language:
select DisplayName,EMPNO,Entity,Country,DomainOverride,ReasonForGen,Email
from Table1
where data.output.Request.EMPNO in ([EMPNO list])

Answer 1

You can use JSON_VALUE. Something like this:
select JSON_VALUE(data,'$.Output.Request.Person.DisplayName'), ...
from Table1
where JSON_VALUE(data,'$.Output.Request.Person.EMPNO') in ([EMPNO list])

Answer 2

You may try to use OPENJSON() to parse the JSON text and get objects and values from the JSON input as a table. You need to use OPENJSON() with explicit schema in the WITH clause to define the columns:
Table:
CREATE TABLE Data (
JsonData nvarchar(max)
)
INSERT INTO Data
(JsonData)
VALUES
(N'{
"output":{
"Request":{
"Person":{
"DisplayName":"Test User",
"EMPNO":"000001",
"Entity":"01",
"Country":"AA"
},
"DomainOverride":null,
"ReasonForGen":"Only",
"Email":"123#test.com",
"CurrentSIP":"123#test.com"
},
"EmailAddress":"123#testcom",
"SIPAddress":"123#test.com",
"Status":"NoChange"
}
}')
Statement:
SELECT
j.DisplayName,
j.EMPNO,
j.Entity,
j.Country,
j.DomainOverride,
j.ReasonForGen,
j.Email
FROM Data d
CROSS APPLY OPENJSON(d.JsonData) WITH (
EMPNO nvarchar(10) '$.output.Request.Person.EMPNO',
DisplayName nvarchar(50) '$.output.Request.Person.DisplayName',
EMPNO nvarchar(50) '$.output.Request.Person.EMPNO',
Entity nvarchar(50) '$.output.Request.Person.Entity',
Country nvarchar(50) '$.output.Request.Person.Country',
DomainOverride nvarchar(50) '$.output.Request.DomainOverride',
ReasonForGen nvarchar(50) '$.output.Request.ReasonForGen',
Email nvarchar(50) '$.output.Request.Email'
) j
-- Use additional WHERE clause
--WHERE j.EMPNO IN ('00001', '000002')
Result:
DisplayName EMPNO Entity Country DomainOverride ReasonForGen Email
Test User 000001 01 AA Only 123#test.com