Help plz.... its very urgent... plz

Question

Hi
This is very urgent ….
In a table:
Select * from source_table;
Datagrp_Name Query
DG1 select emp_name,Emp_id from emp (Emp table has emp_name ,emp_id and dept_id)
DG2 select dept_name from dept (dept table has dept_id and deptname)
Column name is: (Datagrp_Name,Query)
There r 2 records in the table
Now I want to load the data in the target table:
Select * from Target;
0 records
desc target; (it has 3 fields)Emp_name (insert the emp_name from emp)
Emp_id ((insert the emp_id from emp)
Dept_name (insert dept_name from dept)
Now I want to load data in this target table from emp and dept
Generally we will use: select emp_name,emp_id,dept_name from emp,dept where e.dept_id=d.dept_id;
But in this case as select query is there in the source table
So, I want the logic how to proceed pa….
Can anyone help me in this/

Answer 1

Hi,
>>But in this case as select query is there in the source table
I think you need to know about EXECUTE IMMEDIATE statement.
take a look below:
SGMS@ORACLE10> create table query (text varchar2(50));
Table created.
SGMS@ORACLE10> insert into query values ('select 1000 from dual');
1 row created.
SGMS@ORACLE10> commit;
Commit complete.
SGMS@ORACLE10> select * from query;
TEXT
select 1000 from dual
SGMS@ORACLE10> set serveroutput on
SGMS@ORACLE10>
SGMS@ORACLE10> begin
  2  declare
  3    sql_cur varchar2(50);
  4    out varchar2(50);
  5  begin
  6    select text into sql_cur from query;
  7    execute immediate (sql_cur) into out;
8 dbms_output.put_line (sql_cur);
9 dbms_output.put_line (out);
10  end;
11  end;
12  /
select 1000 from dual
1000
PL/SQL procedure successfully completed.See if this link below help you:
http://www.dbasupport.com/oracle/ora9i/execute_immediate.shtml
Cheers