oracle如何重置指令 oracle重启命令详解

如何在命令行重启oracle数据库

方法：

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1. 打开secureCRT，连接到数据库所在的linux机器。若用户为root，请输入命令“su - oracle”并回车，若要密码，输入密码后并回车，就切换到了oracle用户下。

2. 关掉oracle的监听进程:命令为“lsnrctl stop”并回车，这时外部没法连接到数据库了。如图有提示关闭成功信息。

3.先杀掉所有session，“ps -ef|grep $ORACLE_SID|grep -v ora_|grep LOCAL=NO|awk '{print $2}'|xargs kill”也可以用其他办法。然后用sqlplus登录到数据库。命令依次为：“sqlplus /nolog”-“connect / as sysdba” ，最后用命令关闭oracle数据库"shutdown immediate" 。关闭命令的时候需要等待点时间，成功后会有如图的提示。

4.用命令"exit"退出sqlplus。然后用命令“lsnrctl start”启动数据库的监听进程。如图提示语句表明启动成功。

5.先用sqlplus登录到数据库。命令依次为：“sqlplus /nolog”-“connect / as sysdba”。然后输入命令“startup”并回车。等待几分钟会出现如图提示信息。最后用命令“exit”退出sqlplus。

oracle 如何重置用户密码

方法/步骤 用CRT以安装oracle数据库的用户连接oracle数据库所在服务器。 （以服务器为linux 为例） 输入命令: sqlplus /nolog ,进入oracle控制台，并输入 conn /as sysdba;以DBA角色进入。 连接成功后，输入“select username from dba_users”

Oracle忘记密码如何重置

没关系的，忘记密码后可以通过sysdba用户重新进行密码设置。 sql： conn /as sysdba;--用dba权限登录 sql：alter user username identified by newpassword; --修改忘记密码用户的密码 sql：conn username/newpassword；--用此用户登录。

怎么样在Windows下编写批处理脚本来启动和重置Oracle数据库

cmd启动Oracle数据库

新建一个bat文件，复制内容进去，双击即可启动.

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@echo off

net start OracleXETNSListener 2nul

net start OracleServiceXE 2nul

@oradim -startup -sid XE -starttype inst nul 21

Oracle重置数据库命令

新建bat文件，复制以下内容，然后执行。

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@echo off

REM

REM The script assumes that user can connect using "/ as sysdba"

REM

REM =================

REM Restore procedure

REM =================

REM

REM If Installed Oracle home is also lost and oracle binaries were

REM re-installed or the Oracle is installed to new oracle home location

REM compared to backup time, then user will be prompted to enter Flash

REM Recovery Area location.

REM

REM For database in NoArchiveLog mode, database is restored to last offline

REM backup time/scn;

REM For database in Archive log mode, database is restored from last backup

REM and a complete recovery is attempted. If complete recovery fails,

REM user can open the database with resetlogs option provided the files

REM are not recovery fuzzy.

REM

REM The restore log is saved in ?/DATABASE/OXE_RESTORE.LOG

REM

setlocal

set /p inp="This operation will shut down and restore the database. Are you sure [Y/N]?"

:checkinp

if /i "%inp%" == "Y" goto :confirmedyes

if /i "%inp%" == "n" exit

:Askagain

set /p inp=

goto :checkinp

:confirmedyes

echo Restore in progress...

echo db_name=xe %temp%\rman_dummy.ora

echo sga_target=270M %temp%\rman_dummy.ora

net start oracleserviceXe

REM Startup database in nomount mode using RMAN...

@(

echo set echo on^;

echo startup nomount pfile=%temp%\rman_dummy.ora force^;

) %temp%\restore_rman0.dat

rman target / @%temp%\restore_rman0.dat

if not %errorlevel% == 0 set Errorstr= RMAN Error - could not startup dummy instance goto :restorefailederr

@(

echo connect / as sysdba^;

echo set head off

echo set echo off

echo set linesize 515

echo variable var varchar2^(512^)^;

echo execute :var := sys.dbms_backup_restore.normalizefilename^(^'SPFILE2INIT^'^)^;

echo spool %temp%\spfile2init.log

echo select sys.dbms_backup_restore.normalizefilename^(^'SPFILE2INIT.ORA^'^) spfile2init from dual^;

echo exit^;

) %temp%\spfile2init.sql

sqlplus /nolog @%temp%\spfile2init.sql nul

FOR /F %%i in (%temp%\spfile2init.log) do set SPFILE2INIT=%%i

@(

echo connect / as sysdba;

echo set head off

echo set echo off

echo set linesize 515

echo variable var varchar2^(512^)^;

echo execute :var := sys.dbms_backup_restore.normalizefilename^(^'FRA_LOC^'^)^;

echo spool %temp%\restore_rmanlog.log

echo select sys.dbms_backup_restore.normalizefilename^(^'OXE_RESTORE.LOG^'^) RESTORE_RMANLOG from dual^;

echo exit^;

) %temp%\restore_rmanlog.sql

sqlplus /nolog @%temp%\restore_rmanlog.sql nul

FOR /F %%i in (%temp%\restore_rmanlog.log) do set RESTORE_RMANLOG=%%i

if not exist ^"%SPFILE2INIT%^" goto get_rcvarea_loc

@(

echo set echo on^;

echo shutdown immediate^;

echo startup nomount pfile=^"%SPFILE2INIT%^"^;

echo restore ^(spfile from autobackup^) ^(controlfile from autobackup^)^;

echo startup mount force^;

echo configure controlfile autobackup off^;

echo restore database^;

) %temp%\restore_rman1.dat

rman target / @%temp%\restore_rman1.dat trace "%RESTORE_RMANLOG%"

if not %errorlevel% == 0 set Errorstr= RMAN Error - See log for error goto :restorefailederr

goto restored_files

:get_rcvarea_loc

set /p rcvarea_loc="Enter the flash recovery area location:"

@(

echo set echo on^;

echo restore ^(spfile from autobackup db_recovery_file_dest=^'%rcvarea_loc%^'^)^;

echo startup nomount force^;

echo restore ^(controlfile from autobackup^)^;

echo alter database mount^;

echo configure controlfile autobackup off^;

echo restore database^;

) %temp%\restore_rman1.dat

rman target / @%temp%\restore_rman1.dat trace "%RESTORE_RMANLOG%"

if not %errorlevel% == 0 set Errorstr= RMAN Error - See log for error goto :restorefailederr

goto restored_files

:restored_files

@(

echo connect / as sysdba^;

echo declare cursor n1 is select name from v$tempfile^;

echo begin

echo for a in n1

echo loop

echo begin

echo sys.dbms_backup_restore.deletefile^(a.name^)^;

echo exception

echo when others then

echo null^;

echo end^;

echo end loop^;

echo end^;

echo /

echo exit^;

echo /

) %temp%\deltfile.sql

sqlplus /nolog @%temp%\deltfile.sql nul

@(

echo connect / as sysdba^;

echo set head off

echo set echo off

echo spool %temp%\logmode.log

echo select log_mode from v$database^;

echo exit^;

) %temp%\logmode.sql

sqlplus /nolog @%temp%\logmode.sql nul

FOR /F %%i in (%temp%\logmode.log) do set LOGMODE=%%i

if "%LOGMODE%" == "NOARCHIVELOG" goto process_noarchivelog

if "%LOGMODE%" == "ARCHIVELOG" goto process_archivelog

set Errorstr= Unknown log mode : %LOGMODE%

goto :restorefailederr

:process_noarchivelog

@(

echo set echo on^;

echo alter database open resetlogs;

) %temp%\restore_rman2.dat

rman target / @%temp%\restore_rman2.dat trace "%RESTORE_RMANLOG%" append

if not %errorlevel% == 0 set Errorstr= RMAN Error - See log for details goto :restorefailederr

goto :restoresucess

:process_archivelog

@(

echo set echo on^;

echo recover database^;

echo alter database open resetlogs;

) %temp%\restore_rman2.dat

rman target / @%temp%\restore_rman2.dat trace "%RESTORE_RMANLOG%" append

if not %errorlevel% == 0 set Errorstr= RMAN Error - See log for details goto :restorefailederr

goto :restoresucess

:restoresucess

echo Restore of the database succeeded.

echo Log file is at %RESTORE_RMANLOG%.

pause Press any key to exit

exit

goto :EOF

:restorefailederr

echo ==================== ERROR =============================

echo Restore of the database failed.

echo %Errorstr%.

echo Log file is at %RESTORE_RMANLOG%.

echo ==================== ERROR =============================

pause Press any key to exit

exit

goto :EOF