Ora_01504

CREATE DATABASE ass2_db
USER SYS IDENTIFIED BY sys
USER SYSTEM IDENTIFIED BY system
LOGFILE GROUP 1 ('c:\oracle\oradata\redo01a.log') SIZE 100M ,
GROUP 2 ('c:\oracle\oradata\redo02a.log') SIZE 100M ,
GROUP 3 ('c:\oracle\oradata\redo03a.log') SIZE 100M
MAXLOGFILES 5
MAXLOGMEMBERS 5
MAXLOGHISTORY 1
MAXDATAFILES 100
CHARACTER SET US7ASCII
NATIONAL CHARACTER SET AL16UTF16
EXTENT MANAGEMENT LOCAL
DATAFILE 'c:\oracle\oradata\system01.dbf' SIZE 325M REUSE
SYSAUX DATAFILE 'c:\oracle\oradata\sysaux01.dbf' SIZE 325M REUSE
DEFAULT TABLESPACE users
DATAFILE 'c:\oracle\oradata\users01.dbf'
SIZE 500M REUSE AUTOEXTEND ON MAXSIZE UNLIMITED
DEFAULT TEMPORARY TABLESPACE tempts1
TEMPFILE 'c:\oracle\oradata\temp01.dbf'
SIZE 20M REUSE
UNDO TABLESPACE undotbs
DATAFILE 'c:\oracle\oradata\undotbs01.dbf'
SIZE 200M REUSE AUTOEXTEND ON MAXSIZE UNLIMITED;


ora_01504 database name 'ass2_db 'doesn't match parameter db_name 'orcl'

help please