Oracle函數function

     



  f1()
 serveroutput (

v_name:
    f2(p_w  
((

 p_w   
   length(p_w) 
  
v_f :substr(p_w,,
v_a:substr(p_w,(v_a);
v_f:
v_a:v_f
 f2() 


 sid,serial#,username,machine  v$session  username   
 system  session ;