A PL/SQL code can be stored in the client system (client-side) or in the database (server-side). This Oracle PL SQL tutorial teaches you the basics of programming in PL/SQL with appropriate examples.
You may also be interested in the tutorial Python and Oracle Database Tutorial: Scripting for the Future. This is also found in "LiveLabs" format here, which lets you ...
Create custom WebLogic domain image using Oracle Pipelines Simplified tutorial used during Oracle Open World 2019 as HOL5213 (a.k.a. Domain-home-in-image version using WebLogic Operator 2.x) ...