SQL> conn sky/apspass@sdb
Connected.
SQL> insert into PRODUCT_USER_PROFILE (
  2  product, userid, attribute, char_value)
  3  values (
  4  'SQL*Plus','SKY','CREATE','DISABLED');

1 row created.

SQL> COMMIT;

Commit complete.

SQL> create table bb(x int);

Table created.

SQL> drop table bb;

Table dropped.

SQL> create table bb(x int);

Table created.

SQL> drop table bb;

Table dropped.

SQL> conn sky/apspass@sdb
Connected.
SQL> create table bb(x int);
SP2-0544: invalid command: create
SQL> select count(*) from PRODUCT_USER_PROFILE;

  COUNT(*)
----------
         1

SQL> delete from PRODUCT_USER_PROFILE
  2  where user_id='SKY';
where user_id='SKY'
      *
ERROR at line 2:
ORA-00904: invalid column name

SQL> ed
Wrote file afiedt.buf

  1  delete from PRODUCT_USER_PROFILE
  2* where userid='SKY'
SQL> /

1 row deleted.

SQL> commit;

Commit complete.

SQL> create table xx(bb int);
SP2-0544: invalid command: create
SQL> conn sky/apspass@sdb
Connected.
SQL> create table xx(bb int);

Table created.

SQL> drop table xx;

Table dropped.

SQL>