连接到:
Oracle Database 11g Enterprise Edition Release 11.2.0.1.0 - Production
With the Partitioning, OLAP, Data Mining and Real Application Testing options
SQL> show 　parameter  sec_case_sensitive_logon
NAME                                 TYPE        VALUE
------------------------------------ ----------- ------------------------------
sec_case_sensitive_logon             boolean     TRUE
SQL> ALTER SYSTEM SET SEC_CASE_SENSITIVE_LOGON = FALSE;
系统已更改。
SQL> show 　parameter  sec_case_sensitive_logon
NAME                                 TYPE        VALUE
------------------------------------ ----------- ------------------------------
连接到:
Oracle Database 11g Enterprise Edition Release 11.2.0.1.0 - Production
With the Partitioning, OLAP, Data Mining and Real Application Testing options
SQL> show 　parameter  sec_case_sensitive_logon
NAME                                 TYPE        VALUE
------------------------------------ ----------- ------------------------------
sec_case_sensitive_logon             boolean     TRUE
SQL> ALTER SYSTEM SET SEC_CASE_SENSITIVE_LOGON = FALSE;
系统已更改。
SQL> show 　parameter  sec_case_sensitive_logon
NAME                                 TYPE        VALUE
------------------------------------ ----------- ------------------------------
sec_case_sensitive_logon             boolean     FALSE
SQL>             boolean     FALSE


当参数”sec_case_sensitive_logon “为false时，11g就不区分密码大小写了。


与之形成对比的是10g是不区分密码大小写的。