Updating multiple table
When used in the subquery of a DML statement, you can specify this clause in a subquery in the can be a subquery, a column, a function, or a collection constructor.
In addition, a resource object MAY contain any of these top-level members: key MUST be an object (an “attributes object”).
A “resource identifier object” MUST contain member, whose value is a meta object that contains non-standard meta-information.
To reduce the number of HTTP requests, servers MAY allow responses that include related resources along with the requested primary resources. In a compound document, all included resources MUST be represented as an array of resource objects in a top-level member.
Clients MUST send all JSON API data in request documents with the header .
JSON API documents are defined in Java Script Object Notation (JSON) [RFC7159].