Which function converts its input to a JSON string representation?

• A. to_json_object
• B. object_construct
• C. object_deconstruct
• D. to_object

Answer: (A)

Converting input into JSON text is about serializing data into a JSON string. The function that does this by taking key-value pairs and returning a JSON-formatted string is to_json_object. It takes inputs like key-value pairs and outputs a textual JSON representation, for example something like {"a":1,"b":"x"}. The other options don’t produce a string representation: object_construct builds a JSON object value in memory (a VARIANT) from pairs, not a string; object_deconstruct would extract fields from a JSON object; to_object converts to a JSON object type rather than producing a string.