Why do not perform proxy & line input on a loop?

Hello group,

Why does not run the line where the substitution variable is affected by the loop. only the first time.
SET SERVEROUTPUT ON
DECLARE
     v_flag NUMBER(1):= 0; 
     v_counter NUMBER(1):= 0;
BEGIN
     LOOP                      
          v_flag := &input;
          v_counter := v_counter + 1;
          dbms_output.put_line(v_counter);
          EXIT WHEN v_counter = 9;
     END LOOP;
END;
/
Thank you.

A substitution variable is something that SQL * more (or whatever until you use) replace before sending the block PL/SQL (or SQL) to the database. SQL * Plus has no idea that your substitution variable is inside a PL/SQL block and still less that it's inside a loop. He will never ask a value once and then it will send the block to the database where the PL/SQL is executed to process.

Justin

Tags: Database

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