问题
I have JSON in a field, but I need to check it's schema before I process it. I need to know if anything has been added or removed from the schema.
Is there a way to extract the JSON schema from a JSON string so I can compare it to a known schema?
An online example is http://jsonschema.net/, but I want to do the same thing in TSQL
回答1:
SQL Server don't support any json schema binding.
If your JSON is simple or flat, you can use
SELECT [key] FROM OPENJSON(@json)
to find all keys on the first level and compare them with some expected key set.
来源：https://stackoverflow.com/questions/39652524/find-json-schema-in-sql-server