Parsing with OPENJSON - json

Question

I am trying to take the response from a GET call and load it into SQL Server via OPENJSON, but I'm having trouble parsing the response.
DECLARE #json NVARCHAR(MAX);
SET #json = N'{
"LookupServiceType": "GetAssetValues",
"Items": [
{
"id": "19676",
"value": "{\"AssetCode\":\"TDAACC\",\"Symbol\":null,\"Issue\":\"ACCOUNT #49\",\"Issuer\":\"TD AMERITRADE\"}"
},
{
"id": "19677",
"value": "{\"AssetCode\":\"RE100\",\"Symbol\":null,\"Issue\":\"APN: 057\",\"Issuer\":\"SAN ANTONIO TX 78212\"}"
},
{
"id": "19908",
"value": "{\"AssetCode\":\"NALIPO\",\"Symbol\":null,\"Issue\":\"POLICY # L0472\",\"Issuer\":\"NATIONWIDE LIFE\"}"
}
]
}';
I've tried many variations, but I just can't get it right. Here are a few things I've tried. Any suggestions would be appreciated.
SELECT *
FROM OPENJSON(#json, '$.Items')
WITH (
Items int '$.id',
value NVARCHAR(MAX) '$.value',
AssetCode NVARCHAR(50) '$.value.AssetCode',
Symbol NVARCHAR(50) '$.value.Symbol',
Issue NVARCHAR(50) '$.value.Issue',
Issuer NVARCHAR(50) '$.value.Issuer'
);
SELECT id,AssetCode,Symbol,Issue, Issuer
FROM OPENJSON(#json)
WITH (
Items NVARCHAR(MAX) '$.Items' AS JSON
)
OUTER APPLY OPENJSON(Items)
WITH (
id INT 'strict $.id',
value NVARCHAR(MAX) '$.value' AS JSON
)
OUTER APPLY OPENJSON(value)
WITH (
AssetCode NVARCHAR(50) '$.AssetCode',
Symbol NVARCHAR(50) '$.Symbol',
Issue NVARCHAR(50) '$.Issue',
Issuer NVARCHAR(50) '$.Issuer'
);

Answer 1

I think you're looking for this. There weren't any changes needed to the JSON
select j1.LookupServiceType, j2.id, j3.AssetCode, j3.Symbol, j3.Issue, j3.Issuer
from
OPENJSON(#json) WITH (LookupServiceType nvarchar(4000),
Items NVARCHAR(MAX) '$.Items' AS JSON) j1
outer APPLY
OPENJSON(Items) WITH (id INT 'strict $.id',
value NVARCHAR(MAX) '$.value' /*AS JSON*/) j2
outer apply
OPENJSON([value]) WITH (AssetCode NVARCHAR(50) '$.AssetCode',
Symbol NVARCHAR(50) '$.Symbol',
Issue NVARCHAR(50) '$.Issue',
Issuer NVARCHAR(50) '$.Issuer') j3;
Results
LookupServiceType id AssetCode Symbol Issue Issuer
GetAssetValues 19676 TDAACC NULL ACCOUNT #49 TD AMERITRADE
GetAssetValues 19677 RE100 NULL APN: 057 SAN ANTONIO TX 78212
GetAssetValues 19908 NALIPO NULL POLICY # L0472 NATIONWIDE LIFE

Answer 2

The issue is the format of your JSON string, you have superfluous escapes and "".
Your first query works fine once the JSON string is cleaned up:
DECLARE #json NVARCHAR(MAX);
SET #json = N'{
"LookupServiceType": "GetAssetValues",
"Items": [
{
"id": "19676",
"value": {"AssetCode":"TDAACC","Symbol":null,"Issue":"ACCOUNT #49","Issuer":"TD AMERITRADE"}
},
{
"id": "19677",
"value": {"AssetCode":"RE100","Symbol":null,"Issue":"APN: 057","Issuer":"SAN ANTONIO TX 78212"}
},
{
"id": "19908",
"value": {"AssetCode":"NALIPO","Symbol":null,"Issue":"POLICY # L0472","Issuer":"NATIONWIDE LIFE"}
}
]
}';
SELECT *
FROM OPENJSON(#json, '$.Items')
WITH (
Items int '$.id',
AssetCode NVARCHAR(50) '$.value.AssetCode',
Symbol NVARCHAR(50) '$.value.Symbol',
Issue NVARCHAR(50) '$.value.Issue',
Issuer NVARCHAR(50) '$.value.Issuer'
);
Results:
Items AssetCode Symbol Issue Issuer
19676 TDAACC NULL ACCOUNT #49 TD AMERITRADE
19677 RE100 NULL APN: 057 SAN ANTONIO TX 78212
19908 NALIPO NULL POLICY # L0472 NATIONWIDE LIFE
Alternatively if you don't wish to fix your JSON you could use the following statement:
SELECT *
FROM OPENJSON(REPLACE(REPLACE(Replace(#json, '\', ''), '"{', '{'), '}"', '}'), '$.Items')
WITH (
Items int '$.id',
value NVARCHAR(MAX) '$.value',
AssetCode NVARCHAR(50) '$.value.AssetCode',
Symbol NVARCHAR(50) '$.value.Symbol',
Issue NVARCHAR(50) '$.value.Issue',
Issuer NVARCHAR(50) '$.value.Issuer'
);