Create nested procedure in Oracle 10g - oracle

Question

I want to create a nested procedure where in the 1st procedure, I want to create a table dynamically with 2 columns and in the 2nd procedure, I want to insert values into that table.
Below is the code I am trying to use; what am I doing wrong?
CREATE or replace PROCEDURE mytable (tname varchar2)
is
stmt varchar2(1000);
begin
stmt := 'CREATE TABLE '||tname || '(sname varchar2(20) ,sage number (4))';
execute immediate stmt;
end;
create PROCEDURE mytable1 (emp_name varchar2,emp_age number,tname varchar2)
is
stmt1 varchar2(1000);
begin
stmt1 := 'insert into '||tname||' values ('Gaurav' ,27)';
execute immediate stmt1;
end;

Answer 1

There's no need to create a nested procedure here. You can do everything in a single procedure.
Note my use of bind variables in the execute immediate statement
create or replace procedure mytable (
Ptable_name in varchar2
, Pemp_name in varchar2
, Pemp_age in number
) is
begin
execute immediate 'create table ' || Ptable_name
|| ' (sname varchar2(20), sage number (4))';
execute immediate 'insert into ' || Ptable_name
|| ' values (:emp_name, :emp_age)'
using Pemp_name, Pemp_age;
end;
More generally, there's no need to use execute immediate at all; creating tables on the fly is indicative of a poorly designed database. If at all possible do not do this; create the table in advance and have a simple procedure to insert data, should you need it:
create or replace procedure mytable (
, Pemp_name in varchar2
, Pemp_age in number
) is
begin
insert into my_table
values (Pemp_name, Pemp_age);
end;
I would highly recommend reading Oracle's chapter on Guarding Against SQL Injection.
If you really feel like you have to do this as a nested procedure it would look like this; don't forget to call the nested procedure in the main one as the nested procedure isn't visible outside the scope of the first.
create or replace procedure mytable (
Ptable_name in varchar2
, Pemp_name in varchar2
, Pemp_age in number
) is
procedure myvalues (
Pemp_name in varchar2
, Pemp_age in number
) is
begin
execute immediate 'insert into ' || Ptable_name
|| ' values (:emp_name, :emp_age)'
using Pemp_name, Pemp_age;
end;
begin
execute immediate 'create table ' || Ptable_name
|| ' (sname varchar2(20), sage number (4))';
myvalues ( Pemp_name, Pemp_age);
end;
Please see Oracle's documentation on PL/SQL subprograms