7540de50_Application_Builder_Concepts__Description
[Syntax] Request [Description] 
Sets the value of REQUEST. Each application button sets the value of REQUEST to the name of the button. This enables accept processing to reference the name of the button when a user clicks it. You can reference REQUEST using the syntax: Substitution string: &REQUEST. PL/SQL: V('REQUEST') Bind variable: :REQUEST
Application Builder Concepts
Description