请教一个密码问题。

microsesame

oracle的sys初始密码是什么，我刚装完oracle，可是不知怎么登陆。谢了

hecm22

change_on_install

yikaikai

9i安装完后会要求你改的

microsesame

我试了sys/change_on_install   system/manager 都不行。
显示ORA-12638:凭证检索失败。这是怎么回事。请赐教。

pydwh

原帖由 "microsesame" 发表：
我试了sys/change_on_install   system/manager 都不行。
显示ORA-12638:凭证检索失败。这是怎么回事。请赐教。

下面的资料引自：
http://expert.csdn.net/Expert/FAQ/FAQ_Index.asp?id=14798

Oracle9i中ORA-12638凭证检索失败怎么解决？

同题  
---------------------------------------------------------------  

sqlnet.init中设置  

SQLNET.AUTHENTICATION_SERVICES=  (NTS)  
把它注释掉  
---------------------------------------------------------------  



cause:  由于Oracle不能应用OS认证而导致凭证检索失败  
         
action:   
       1.打开network/admin下的sqlnet.ora   
           修改SQLNET.AUTHENTICATION  _SERVICES=(NONE)。   
         
       2.启动Net8  configuration  assistant--  >;选第三项本地网络服务名配置   
       --  >;删除...(删除原来的本地网络服务名)   

       3.重复第二步   
       --  >;添加..  (新建本地网络服务名)   

       4.restart  oracle  
---------------------------------------------------------------  

NTS是WinNT的认证方式  
---------------------------------------------------------------  

在sqlnet.ora中将  
#sqlnet.authentication_services  =  (tcp)  
改为  
#sqlnet.authentication_services  =  (NONE)  

或者把这一行注释掉  

---------------------------------------------------------------  

sqlnet.authentication_services  =  (NONE)

microsesame

问题解决了，太感谢了。
不过我还想问个问题。我装过几次oracle，每次都能直接用sys或system直接登陆，也就是说，在sqlnet.ora中设置如下SQLNET.AUTHENTICATION _SERVICES=(NONE)。 但这次却变成了SQLNET.AUTHENTICATION _SERVICES=(NTS)。这是怎么回事？
我的安装顺序是WIN2000 ,SP2,ORACLE 8.16 ,金山毒霸，SP3 和我的安装是不是有关系。请各位大虾指点。
再次感谢大家了！！！

CCBZZP

建議升級SP

microsesame

还是有问题：
在DBA Studio 中 添加数据库到树中，点连接 输入sys/change_on_install显示 该数据库当前已关闭。要启动该数据库，请作为sysdba重新连接，选择例程下的数据库对象，然后在“数据库”属性工作表的“一般信息”页上将该数据库更改为打开状态。
我按照上面的操作执行。弹出对话框让选择初始化参数文件，我选择默认的<本地init.ora>;开始执行时正在启动数据库时却弹出ORA-01017:无效的用户名/口令；登陆被拒绝。
我找到INIT.ORA文件，文件内容如下：
#
# Copyright (c) 1991, 1998 by Oracle Corporation
#
##############################################################################
# Example INIT.ORA file
#
# This file is provided by Oracle Corporation to help you customize
# your RDBMS installation for your site.  Important system parameters
# are discussed, and example settings given.
#
# Some parameter settings are generic to any size installation.
# For parameters that require different values in different size
# installations, three scenarios have been provided: SMALL, MEDIUM
# and LARGE.  Any parameter that needs to be tuned according to
# installation size will have three settings, each one commented
# according to installation size.
#
# Use the following table to approximate the SGA size needed for the
# three scenarious provided in this file:
#
#                     -------Installation/Database Size------
#                      SMALL           MEDIUM           LARGE
#  Block         2K    4500K            6800K           17000K
#  Size          4K    5500K            8800K           21000K
#
# To set up a database that multiple instances will be using, place
# all instance-specific parameters in one file, and then have all
# of these files point to a master file using the IFILE command.
# This way, when you change a public
# parameter, it will automatically change on all instances.  This is
# necessary, since all instances must run with the same value for many
# parameters. For example, if you choose to use private rollback segments,
# these must be specified in different files, but since all gc_*
# parameters must be the same on all instances, they should be in one file.
#
# INSTRUCTIONS: Edit this file and the other INIT files it calls for
# your site, either by using the values provided here or by providing
# your own.  Then place an IFILE= line into each instance-specific
# INIT file that points at this file.
#
# NOTE: Parameter values suggested in this file are based on conservative
# estimates for computer memory availability. You should adjust values upward
# for modern machines.
#
###############################################################################

db_name = "bx"

db_domain = dccbj

instance_name = bx

service_names = bx.dccbj

db_files = 1024  # INITIAL
# db_files = 80                                                       # SMALL
# db_files = 400                                                      # MEDIUM
# db_files = 1500                                                     # LARGE

control_files = ("d:\Oracle\oradata\bx\control01.ctl", "d:\Oracle\oradata\bx\control02.ctl", "d:\Oracle\oradata\bx\control03.ctl"

open_cursors = 100
max_enabled_roles = 30
db_file_multiblock_read_count = 8  # INITIAL
# db_file_multiblock_read_count = 8                                   # SMALL
# db_file_multiblock_read_count = 16                                  # MEDIUM
# db_file_multiblock_read_count = 32                                  # LARGE

db_block_buffers = 19200  # INITIAL
# db_block_buffers = 100                                              # SMALL
# db_block_buffers = 550                                              # MEDIUM
# db_block_buffers = 3200                                             # LARGE

shared_pool_size = 52428800  # INITIAL
# shared_pool_size = 3500000                                          # SMALL
# shared_pool_size = 5000000                                          # MEDIUM
# shared_pool_size = 9000000                                          # LARGE

large_pool_size = 614400
java_pool_size = 20971520

log_checkpoint_interval = 10000
log_checkpoint_timeout = 1800

processes = 59  # INITIAL
# processes = 50                                                      # SMALL
# processes = 100                                                     # MEDIUM
# processes = 200                                                     # LARGE

parallel_max_servers = 5  # SMALL
# parallel_max_servers = 4 x (number of CPUs)                         # MEDIUM
# parallel_max_servers = 4 x (number of CPUs)                         # LARGE

log_buffer = 32768  # INITIAL
# log_buffer = 32768                                                  # SMALL
# log_buffer = 32768                                                  # MEDIUM
# log_buffer = 163840                                                 # LARGE

#audit_trail = true  # if you want auditing
#timed_statistics = true  # if you want timed statistics
max_dump_file_size = 10240  # limit trace file size to 5M each

# Uncommenting the line below will cause automatic archiving if archiving has
# been enabled using ALTER DATABASE ARCHIVELOG.
# log_archive_start = true
# log_archive_dest_1 = "location=d:\Oracle\oradata\bx\archive"
# log_archive_format = %%ORACLE_SID%%T%TS%S.ARC

# If using private rollback segments, place lines of the following
# form in each of your instance-specific init.ora files:
#rollback_segments = ( RBS0, RBS1, RBS2, RBS3, RBS4, RBS5, RBS6 )

# If using public rollback segments, define how many
# rollback segments each instance will pick up, using the formula
#   # of rollback segments = transactions / transactions_per_rollback_segment
# In this example each instance will grab 40/5 = 8
# transactions = 40
# transactions_per_rollback_segment = 5

# Global Naming -- enforce that a dblink has same name as the db it connects to
global_names = true

# Edit and uncomment the following line to provide the suffix that will be
# appended to the db_name parameter (separated with a dot) and stored as the
# global database name when a database is created.  If your site uses
# Internet Domain names for e-mail, then the part of your e-mail address after
# the '@' is a good candidate for this parameter value.
# db_domain = us.acme.com     # global database name is db_name.db_domain

# Uncomment the following line if you wish to enable the Oracle Trace product
# to trace server activity.  This enables scheduling of server collections
# from the Oracle Enterprise Manager Console.
# Also, if the oracle_trace_collection_name parameter is non-null,
# every session will write to the named collection, as well as enabling you
# to schedule future collections from the console.
# oracle_trace_enable = true

oracle_trace_collection_name = ""
# define directories to store trace and alert files
background_dump_dest = d:\Oracle\admin\bx\bdump
#Uncomment this parameter to enable resource management for your database.
#The SYSTEM_PLAN is provided by default with the database.
#Change the plan name if you have created your own resource plan.# resource_manager_plan = system_plan
user_dump_dest = d:\Oracle\admin\bx\udump

db_block_size = 8192

remote_login_passwordfile = exclusive

os_authent_prefix = ""

# The following parameters are needed for the Advanced Replication Option
job_queue_processes = 4
job_queue_interval = 10
open_links = 4

distributed_transactions = 500
mts_dispatchers = "(PROTOCOL=TCP)(PRE=oracle.aurora.server.SGiopServer)"
# Uncomment the following line when your listener is configured for SSL
# (listener.ora and sqlnet.ora)
# mts_dispatchers = "(PROTOCOL=TCPS)(PRE=oracle.aurora.server.SGiopServer)"

compatible = 8.1.0
sort_area_size = 65536
sort_area_retained_size = 65536

这到底是怎么回事？请指教，谢谢。