Input with sql*plus and Output it with PL/SQL

Question

Hi everyone,
I try to understand how can I get input and input by using sqlplus and plsql together. I get output like this:
Get User Input
Given Name: Iron
Family Name: Man
old   6:        Given_Name := '&GivenName';
new   6:        Given_Name := 'Iron';
old   7:        Family_Name := '&FamilyName';
new   7:        Family_Name := 'Man';
Given Name: Iron
Family Name: Man
PL/SQL procedure successfully completed.My Codes:
PROMPT Get User Input
ACCEPT GivenName PROMPT "Given Name: "
ACCEPT FamilyName PROMPT "Family Name: "
DECLARE
     Family_Name Varchar(15);
     Given_Name Varchar(15);
BEGIN
     Given_Name := '&GivenName';
     Family_Name := '&FamilyName';
     DBMS_OUTPUT.PUT_LINE('Given Name: ' || Given_Name); 
     DBMS_OUTPUT.PUT_LINE('Family Name: ' || Family_Name);
END;
/My question is why I get
old   6:        Given_Name := '&GivenName';
new   6:        Given_Name := 'Iron';
old   7:        Family_Name := '&FamilyName';
new   7:        Family_Name := 'Man';this bit?Is there something wrong in my code? Thanks.

Answer 1

Hi,
From SQL*Plus reference:
After you enter a value at the prompt, SQL*Plus lists the line containing the substitution variable twice: once before substituting the value you enter and once after substitution. You can suppress this listing by setting the SET command variable VERIFY to OFF.
So. you can remove current output with
SET VERIFY OFF
and enable your PL/SQL output by
SET SERVEROUTPUT ON
Regards
Peter