How to create a pl/sql query in the specified edition?

Question

Oracle

Good day. I'm just learning PL/SQL. There is some problem and the wording in it confuses:

Write a query in PL\SQL <...> in the specified revision after the specified date

I can’t find it in the open spaces as the edition is indicated in the request.
Thanks to.

Answer 1

Not indicated at all. In this case, it means that the request should not contain functions and code structures added in later editions of the language.