ora-00988

本來想看下默認表空間的有效範圍

CREATE bigfile TABLESPACE "USERS" DATAFILE
'/u01/oradata/orcl/users.dbf' SIZE 500M
AUTOEXTEND ON NEXT 20M
LOGGING ONLINE PERMANENT BLOCKSIZE 8192
EXTENT MANAGEMENT LOCAL AUTOALLOCATE SEGMENT SPACE MANAGEMENT AUTO;

alter database default tablespace users;

SQL> create user u1 identified by 1;
create user u1 identified by 1
                             *
ERROR at line 1:
ORA-00988: missing or invalid password(s)


SQL> create user u1 identified by u1;

User created.

寫1就報錯，寫u1就不報錯，何解？

Oracle10g對密碼的要求如下：
系統用戶（SYS、SYSTEM）口令長度不能小於7個字符
第一個字符不能爲數字
且全部字符中應該爲字母和數字混合

貌似11g就沒這問題

C:\Users\Administrator>sqlplus / as sysdba

SQL*Plus: Release 11.2.0.1.0 Production on 星期四 6月 20 15:28:59 2013

Copyright (c) 1982, 2010, Oracle.  All rights reserved.


連接到:
Oracle Database 11g Enterprise Edition Release 11.2.0.1.0 - 64bit Production
With the Partitioning, OLAP, Data Mining and Real Application Testing options

SQL> create user u1 identified by 1;

用戶已創建。

SQL>

是哪個參數控制的吧？