Creation of new table with attributes of another ??

Question

how can i create a new table which has the same attributes as another ? Please note that the records/tuples in the already existing table shouldn't be copied into the new table.
Illustration:
Table Employee_Details with attributes/fields Name and IDno is present.
A new table Supervisor should have the same attributes/fields Name and IDno.
But the data in Employee_Details table shouldn't be copied into this table (Supervisor).
Can anyone write a query in SQL that does the same i.e. use the attributes of another table during the creation of a new one?
Also can anyone explain why the following query is erroneous ?
sql> create table supervisor as (desc employee_details);
Thanks for your help!

Answer 1

create table new_table as select * from old_table
where 0=1;This statement doesn't create the new_table in the same tablespace than old_table... to take for example only the tablespace, but that's right for storage clause too.
Assuming TITI is my old table, and TOTO my new table :
SQL> show user
USER is "H89UCBAC"
SQL> select default_tablespace from dba_users where username='H89UCBAC';
DEFAULT_TABLESPACE
PSDEFAULT
SQL> create table titi(coltiti number) tablespace tools;
Table created.
SQL> create table toto as select * from titi;
Table created.
SQL> ed
Wrote file afiedt.buf
  1* select table_name,tablespace_name from dba_tables where table_name in ('TITI','TOTO')
SQL> /
TABLE_NAME                     TABLESPACE_NAME
TOTO                           PSDEFAULT
TITI                           TOOLS
SQL>   1* select replace(dbms_metadata.get_ddl('TABLE','TITI'),'TITI','TOTO') from dual
SQL> /
REPLACE(DBMS_METADATA.GET_DDL('TABLE','TITI'),'TITI','TOTO')
  CREATE TABLE "H89UCBAC"."TOTO"
   (    "COLTOTO" NUMBER
   ) PCTFREE 10 PCTUSED 40 INITRANS 1 MAXTRANS 255 NOCOMPRESS LOGGING
  STORAGE(INITIAL 65536 NEXT 65536 MINEXTENTS 1 MAXEXTENTS 2147483645
  PCTINCREASE 0 FREELISTS 1 FREELIST GROUPS 1 BUFFER_POOL DEFAULT)
  TABLESPACE "TOOLS"
SQL> drop table toto;
Table dropped.
SQL> CREATE TABLE "H89UCBAC"."TOTO"
  2   (    "COLTOTO" NUMBER
  3   ) PCTFREE 10 PCTUSED 40 INITRANS 1 MAXTRANS 255 NOCOMPRESS LOGGING
  4  STORAGE(INITIAL 65536 NEXT 65536 MINEXTENTS 1 MAXEXTENTS 2147483645
  5  PCTINCREASE 0 FREELISTS 1 FREELIST GROUPS 1 BUFFER_POOL DEFAULT)
  6  TABLESPACE "TOOLS"
  7  /
Table created.
SQL> select table_name,tablespace_name from dba_tables where table_name in ('TITI','TOTO');
TABLE_NAME                     TABLESPACE_NAME
TITI                           TOOLS
TOTO                           TOOLS
SQL> HTH,
Nicolas.
Message was edited by:
N. Gasparotto