sigrok-dumps is a collection of various logic analyzer example captures in sigrok session (*.sr) file format. They're useful for evaluating and/or testing sigrok frontends (command-line or GUIs), testing and developing protocol decoders, and for other uses cases.
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.