Question

I want to assign a value to a variable when exception occurs.

exception
  when excep1 then
    var = true;
  when excep2 then
    var = true;
end;

I want to do something like, Is it possible?

exception
   var = true;
   when excep1 then
    -- do something
   when excep2 then
    -- do something
end;

Answer 1

Re-raising as Odi suggested would definitely work. You get the same effect by doing things a little differently.

begin
  var := true;

  ... your code that can cause exceptions...

  var := false; --var set to false unless an exception was encountered
exception
  when exception1 then
    ...
  when exception2 then
    ...
end;