To become a PL/SQL developer, you should learn the basics of databases, especially Oracle, as PL/SQL is based on it. Deepen your SQL knowledge to understand database queries and manipulation.

PL/SQL Unwrapper for SQL Developer is a free extension to unwrap PL/SQL code wrapped with the wrap utility of the Oracle Database Server version 10g, 11g, 12c, 18c or 19c. Open a wrapped PL/SQL unit ...

With the introduction of Oracle compatibility in MariaDB Server 10.3, it's now possible to use Oracle PL/SQL and Oracle sequences in an open source database - making it easier for DBAs and developers ...