Help Pls Table is not getting created

Question

Hi,
DECLARE
   CURSOR c
   IS
      SELECT * FROM emp;
    v_count NUMBER;
BEGIN
   BEGIN
      SELECT COUNT (*)
        INTO V_COUNT
        FROM all_tables
       WHERE table_name = 'EMP_BKP';
      IF V_COUNT = 0
      THEN
         EXECUTE IMMEDIATE 'CREATE TABLE EMP_BKP AS SELECT * FROM EMP';
      ELSE
         DBMS_OUTPUT.put_line ('Table already created');
      END IF;
   END;
   BEGIN
      FOR i IN c
      LOOP
         INSERT INTO EMP_BKP
            SELECT *
              FROM EMP
             WHERE empno = i.empno;
      END LOOP;
   END;
END;
Error report:
ORA-06550: line 15, column 13:
PL/SQL: ORA-00942: table or view does not exist
ORA-06550: line 15, column 1:
PL/SQL: SQL Statement ignored
06550. 00000 -  "line %s, column %s:\n%s"
*Cause:    Usually a PL/SQL compilation error.
*Action:i don't understand why table is not getting created
Edited by: 924575 on Apr 23, 2013 12:35 PM

Answer 1

Frank Kulash wrote:
Hi,
924575 wrote:
Hi,
DECLARE
CURSOR c
IS
SELECT * FROM emp;
v_count NUMBER;
BEGIN
BEGIN
SELECT COUNT (*)
INTO V_COUNT
FROM all_tables
WHERE table_name = 'EMP_BKP';
You probaly want to check <b>USER</b>tables, not  <b>ALL</b>tables.
IF V_COUNT = 0
THEN
EXECUTE IMMEDIATE 'CREATE TABLE EMP_TEST AS SELECT * FROM EMP';Is this right: you want to create a table called emp_<b>TEST</b>, but only a table called emp_<b>BKP</b> does not already exst?
ELSE
DBMS_OUTPUT.put_line ('Table already created');
END IF;
END;
BEGIN
FOR i IN c
LOOP
INSERT INTO EMP_BKP
SELECT *
FROM EMP
WHERE empno = i.empno;
END LOOP;
END;
END;
Error report:
ORA-06550: line 15, column 13:
PL/SQL: ORA-00942: table or view does not exist
ORA-06550: line 15, column 1:
PL/SQL: SQL Statement ignored
06550. 00000 -  "line %s, column %s:\n%s"
*Cause:    Usually a PL/SQL compilation error.
*Action:i don't understand why table is not getting createdWhat are you trying to do?
Creating tables in PL/SQL is rarely a good idea.
What can't you create the table, once for all, and TRUNCATE or DELETE the rows when necessary?Frank ,
thank you so much for ur reply.
Even user_tables also not working .i modifed as EMP_BKP that also not working.
Yea. i agree. but requirement is i want to create dynamically. if same table already exists no need to create table.
modified code is
DECLARE
   CURSOR c
   IS
      SELECT * FROM emp;
    v_count NUMBER;
BEGIN
   BEGIN
      SELECT COUNT (*)
        INTO V_COUNT
        FROM user_tables
       WHERE table_name = 'EMP_BKP';
      IF V_COUNT = 0
      THEN
         EXECUTE IMMEDIATE 'CREATE TABLE EMP_BKP AS SELECT * FROM EMP';
      ELSE
         DBMS_OUTPUT.put_line ('Table already created');
      END IF;
   END;
   BEGIN
      FOR i IN c
      LOOP
         INSERT INTO EMP_BKP
            SELECT *
              FROM EMP
             WHERE empno = i.empno;
      END LOOP;
   END;
END;
ORA-06550: line 24, column 22:
PL/SQL: ORA-00942: table or view does not exist
ORA-06550: line 24, column 10:
PL/SQL: SQL Statement ignored
06550. 00000 -  "line %s, column %s:\n%s"
*Cause:    Usually a PL/SQL compilation error.
*Action: