Pl sql procedure - clarification

Question

1)
create or replace procedure sp_emp(i_ename varchar2(5), i_date date) is
begin
v_cmd := 'create table emp_duplicate(eno number(5), ename varchar2(20) as select eno, ename
from emp e ' || 'where to_date(e.join_date,'dd-mm-yy') = ' || to_date(i_date,'dd-mm-yy') || 'and e.ename = ' i.ename;
execute v_cmd;
end;
The above procedure is not a compiled one. I have a procedure as above. I am getting error like ' not a
valid expresion '. Please make the above code to run. I have to implement in my project. The issue is with
the sttement (quotes , dd-mm-yy)
2)
ename dno
a 10
a 20
b 30
b 40
c 50
c 60
The table have two columns as above. I need an output as below.
ename dno output
a 10 10,20
a 20 10,20
b 30 30,40
b 40 30,40
c 50 50,60
c 60 50,60
please guide me.

Answer 1

1. Thare are so many problems in this code. I will list a few.
1. You cant specify the size of an argument in a procedure.
2. You can call this procedure only once in a schema, coz the name of the table to  be created is static.
3. *No need to create the table dynamically*. You can create the table at the design time and truncate/insert as required.
     Even it will not be required, I hope, to meet your requirement( A Cursor will be enough).
4. In the EMP table join_date should be of date datatype. If it is already a date, no need of to_date in the procedure.
5. Not using BIND Variables.
6. Variable "v_cmd" is not declared2. Search for "string aggregation " in this forum and show us what you tried so far.