text: -- @testpoint: 匿名块定义 验证匿名块是否支持end if,elsif else 连用
  
  declare
         v NUMBER;
     begin
         if v = 1 then
             raise info 'Equal to 1';
         elsif v!= 1 then
             raise info 'Not equal to 1';
         elsif v = v then
             raise info 'Equal to itself';
         else
             raise info 'Undefined result';
         end if;
         v:=v+1;
         raise info'New value: %',v;
     end;
  /