How to return the entire row from a table

Question

Hi guys,
Tabl A
FirstName varchar2(10),
Age Number,
Add varchar2(100),
Table B
Filedname varchar2(200), -- contains all the fields of table A
Datatype varchar2(100), -- Contains the datatypes of the filedname
Length Number -- contains the length of the fileds
Now how can i return the entire row from table A with the datatype and its length.
Any help would be appreciated ?
Here is the query I wrote but it how to take the datatype and its length..
create or replace procedure disp_table_data
as
type r_cursor is REF CURSOR;
c_A r_cursor;
er A%rowtype;
begin
open c_A for select * from A;
loop
fetch c_A into er;
exit when c_A%notfound;
dbms_output.put_line(er.FirstName||'--'||er.Age);
end loop;
close c_A;
END;
/

Answer 1

Guys,
I want column value from table A and its corresponding data_type and length from table B. I think I cant do it through joins.
Any idea would be appreciated ?.
Example ..
Tabl A
FirstName varchar2(10),
Age Number,
Add varchar2(100)
insert into A values('John',24,'Boston');
Table B
Filedname varchar2(200), -- contains all the fields of table A
Datatype varchar2(100), -- Contains the datatypes of the filedname
Length Number -- contains the length of the fileds
insert into B values('FirstName','varchar2',10); -- this is coming from table A.
Output should be like this...
John,Varchar2,10
Here (John is the FirstName - coming from table A, Varchar2 is a Datatype and 10 is the Length which are coming from table B ). Only column values are coming from table A , corresponding datatype and length are coming from B.
Any idea would be appreciated ?
Thanks.