Oracle pl sql hello world program

PL/SQL:

PL/SQL stands for Procedural Language extension of SQL. It was developed by Oracle Corporation in the late 1980s to enhance the capabilities of SQL. It is the procedural extension language for SQL.

pl sql hello world program:

DECLARE
   -- variable declaration
   message  varchar2(20):= 'Hello World!';
BEGIN
   --output
   dbms_output.put_line(message);
END;
/

Output:

Hello World!