Dynamic sql query

Question

Hi,
i neeed to create a table of data of other tables which needs to be executed in cursor level,
for eg
i need to create
CURSOR cur IS
select object_name from user_objects
where object_type = 'TABLE'
and object_name like '%JSP%' and rownum<3;
creata table t1 as
select * from i.object_name
is it possible to create with date in single table and from which table name the data is also stored

Answer 1

941521 wrote:
hi but this will create two or N diffrent table names for which i need in single table which contains all the table namesYou mean you want to select from all of these tables and want to have all these data in ONE table ?
Try this one
DECLARE
   Sql_run   VARCHAR2 (1000) := 'create table t1 as ';
BEGIN
   FOR a
      IN (SELECT object_name
            FROM user_objects
           WHERE     object_type = 'TABLE'
                 AND object_name LIKE '%JSP%'
                 AND ROWNUM < 3)
   LOOP
      Sql_run := Sql_run || 'select * from ' || a.object_name || ' union all ';
   END LOOP;
   EXECUTE IMMEDIATE SUBSTR (Sql_run, 1, LENGTH (Sql_run) - 10);
END;But note that all these tables must be same structed(for working of UNION operator).
SQL> SELECT object_name
  2              FROM user_objects
  3             WHERE     object_type = 'TABLE'
  4                   AND object_name LIKE '%EMP%';
OBJECT_NAME
EMP
EMPLOYEES
SQL>
SQL> select * from t1;
select * from t1
ERROR at line 1:
ORA-00942: table or view does not exist
SQL> select count(*) from employees;
  COUNT(*)
       107
SQL> select count(*) from emp;
  COUNT(*)
       107
SQL> DECLARE
  2     Sql_run   varchar2(1000) := 'create table t1 as ';
  3  BEGIN
  4     FOR a
  5        IN (SELECT object_name
  6              FROM user_objects
  7             WHERE     object_type = 'TABLE'
  8                   AND object_name LIKE '%EMP%')
  9     LOOP
10        Sql_run := Sql_run || 'select * from ' || a.object_name || ' union al
l ';
11     END LOOP;
12
13     --DBMS_OUTPUT.put_line (substr(Sql_run,1,length(Sql_run)-6));
14     EXECUTE IMMEDIATE SUBSTR (Sql_run, 1, LENGTH (Sql_run) - 10);
15  END;
16  /
PL/SQL procedure successfully completed.
SQL> select count(*) from t1;
  COUNT(*)
       214
SQL> SELECT COUNT (*)
  2    FROM (SELECT * FROM emp
  3          UNION ALL
  4          SELECT * FROM employees);
  COUNT(*)
       214
SQL>