XE运行backup.bat出错

转自：http://michaelr.itpub.net/post/41578/498604

In Oracle Express Edition 10g :
设置控制面板中的Schedule Tasks，用BIN下的Backup.bat来定时备份，发现错误：
==================== ERROR =============================
Backup of the database failed.
Unknown log mode : SP2-0640:.
Log file is at SP2-0640:.
==================== ERROR =============================
Press any key to continue . . .

运行backup.bat出错

In Oracle Express Edition 10g :
设置控制面板中的Schedule Tasks，用BIN下的Backup.bat来定时备份，发现错误：
==================== ERROR =============================
Backup of the database failed.
Unknown log mode : SP2-0640:.
Log file is at SP2-0640:.
==================== ERROR =============================
Press any key to continue . . .

原因：D:/OracleOraXE/app/oracle/product/10.2.0/server/NETWORK/ADMIN/sqlnet.ora中使用SQLNET.AUTHENTICATION_SERVICES = (NONE)，造成无法用指当前定为dba的系统用户登录，connect / as sysdba也会出错。改成SQLNET.AUTHENTICATION_SERVICES = (NTS)就可以了。