How to write a single statement that concatenates the words ?Hello? and ?World? and assign it in a variable named Greeting?

Greeting := ‘Hello’ || ‘World’;

In PL/SQL, you can concatenate two strings using the || operator. To achieve the desired result of concatenating the words “Hello” and “World” and assigning it to a variable named Greeting, you can use the following single statement:

Greeting := 'Hello' || 'World';

This statement uses the || operator to concatenate the two strings, and the result is assigned to the variable Greeting.