how to Add two json object using sql server

let us suppose I have a customer table in my database  by default SQL server will return table schema return type is JSON format (the above image 1) and the same customer table also will return enter data as JSON format (the above image 2)

 

my question is instead of using C#(for joining two JSON objects), I want to join two JSON objects as a single job object by using SQL server queries(like joins, cursors... how????)