The tawny owl or brown owl (Strix aluco) is a stocky, medium-sized owl commonly found in woodlands across much of Eurasia. Its underparts are pale with dark streaks, and the upperparts are either brown or grey. Several of the eleven recognised subspecies have both variants.
At the most basic level, a function definition (i.e., the code that defines the function) requires the function keyword, the function's name, and a script block, as the following syntax shows: The script block, which needs to be enclosed in braces, contains the statements that run when you call the function.
PL/SQL. PL/SQL syntax to create user-defined functions is not much different from that for stored procedures. The main difference is it has to specify the return data type in the header section and return a value somewhere in the function body. Any code after the RETURN statement in the function body will be ignored.