SQL Server 2016 JSON's JSON_QUERY() Function Part 1

JSON_QUERY.sql

-- See https://gist.github.com/bertwagner/356bf47732b9e35d2156daa943e049e9 for a formatted version of this JSON
DECLARE @garage nvarchar(1000) = N'{ "Cars": [{ "Make": "Volkswagen", "Model": { "Base": "Golf", "Trim": "GL" }, "Year": 2003, "PurchaseDate": "2006-10-05T00:00:00.000Z" }, { "Make": "Subaru", "Model": { "Base": "Impreza", "Trim": "Premium" }, "Year": 2016, "PurchaseDate": "2015-08-18T00:00:00.000Z" }] }'

-- This returns NULL because the values of Cars is an array instead of a simple object
SELECT JSON_VALUE(@garage, '$.Cars') 
-- Output: NULL

-- Using JSON_QUERY() however returns the JSON string representation of our array object
SELECT JSON_QUERY(@garage, '$.Cars') 
-- Output: [{ "Make": "Volkswagen", "Model": { "Base": "Golf", "Trim": "GL" }, "Year": 2003, "PurchaseDate": "2006-10-05T00:00:00.000Z" }, { "Make": "Subaru", "Model": { "Base": "Impreza", "Trim": "Premium" }, "Year": 2016, "PurchaseDate": "2015-08-18T00:00:00.000Z" }]

-- This instance of JSON_VALUE() correctly returns a singular scalar value
SELECT JSON_VALUE(@garage, '$.Cars[0].Make')
-- Output: Volkswagen

-- Using JSON_QUERY will not work for returning scalar values - it only will return JSON strings for complex objects
SELECT JSON_QUERY(@garage, '$.Cars[0].Make')
-- Output: NULL