I would like to know what approach do you use when you use PL/SQL Function Body? Do you also use just short Return SameValue; or do you always use full syntax Declare / Begin / End around code (like I see in doc or some examples)?

For example I have couple of Dynamic Actions with Action Set Value . Under Settings I selected PL/SQL Function Body . This function call my user function from Package, because I have this action on many items:

So I wrote inside:

Return MyPackage.MyFunction(:P1_VALUE_01, MyCriteria);

and everything work fine (assumed that I handle errors in my function). Can I just leave this that way OR do I have to always use Declare / Begin / End (or at least Begin / End) as good practice around my calling function:

Declare
 l_Result VarChar2(5);
Begin
  l_Result := MyPackage.MyFunction(:P1_VALUE_01, MyCriteria...);
  Return l_Result;
End;

All suggestions and opinions are welcome.