PL/JSON is a generic JSON object written in PL/SQL. Using PL/SQL object syntax, users instantiate a JSON objects and then add members, arrays, and additional JSON objects. This object type can store JSON data, in Oracle, persistently.
ORA_Tweet allows you to call the Twitter API from within an Oracle database. It uses the UTL_HTTP API within Oracle to call the update_status API. It is written completely in PL/SQL. The API supports proxies and short URLs.