Shutdown Timeout and Abort Shutdown modes that wait for users to disconnect or for transactions to complete have a limit on the amount of time that they wait. If all events blocking the shutdown do not occur within one hour, the shutdown command aborts with the following message: ORA-0101...
You have issued a SHUTDOWN ABORT command to bring down your database instance.Conside
在电梯里避震方法:先迅速把操作盘上的按键全部按下,一旦电梯停下赶紧离开电梯。但若失控了怎么办?抱头蹲下吗?千万不要,这个动作无济于事,正确的姿势应该这样:背部紧贴电梯内壁(以防脊椎受伤);双膝弯曲,脚尖踮起(以防骨胳受伤);吸气(以防岔气)。
SHUTDOWN ABORT:不允许新的连接、不等待会话结束、不等待事务结束、不做检查点且没有关闭数据文件。启动时自动进行实例恢复。 oracle的启动过程 Oracle 的启动需要经历四个状态,SHUTDOWN 、NOMOUNT 、MOUNT 、OPEN、 SHUTDOWN状态 第一状态没什么好解释的,oracle的所有文件都静静的躺在磁盘里,一切都还未开始,属于关机...
C. The database is closed, but the instance is still started. D. Database buffers and redo buffers are not written to the disk. E. The database undergoes automatic media recovery during the next startup. 相关知识点: 试题来源:
Another DBA issues a shutdown abort command on a database on which you were running an online backup. What will happen when you try to restart the database?() A. Oracle will automatically take the datafile...
SHUTDOWN TRANSACTIONAL:不允许新的连接、不等待会话结束、等待事务结束、做一个检查点并关闭数据文件。启动时不需要实例恢复。SHUTDOWN IMMEDIATE:不允许新的连接、不等待会话结束、不等待事务结束、做一个检查点并关闭数据文件。没有结束的事务是自动rollback的。启动时不需要实例恢复。 SHUTDOWN ABORT:不允许新的连接...
[单选题] WhataretheconsequencesofexecutingtheSHUTDOWNABORTcommand?() A.Thedatabasefilesaresynchronized. B.Uncommittedchangesarenotrolledback. C.Thedatabaseisclosed,buttheinstanceisstillstarted. D.Databasebuffersandredobuffersarenotwrittentothedisk. E.Thedatabaseundergoesautomaticmediarecoveryduringthenextstar...
–`-a`或`–abort-all`:中止所有的关机操作,除了已经执行的。 –`-m \min –min=\min`:设置在多少分钟后执行关机操作,最小值可以是分钟(0-59),小时(0-23),天(0-7),周(0-6)或月(1-12)。 –`now`:立即执行关机操作。 –`+\minute \hour \day \month \weekday [year\] –set-date=\%s`...
PostgreSQL shutdown有三种模式: smart:PostgreSQL 9.5之前,默认是该值,它需要等待会话全部退出后才停止。这几乎是不可能的。oracle的normal模式,也就是默认。 fast:停止所有会话,执行检查点。相当于oracle的shutdown immeidate; immediate:停止所有会话,不执行检查点,相当于oracle的shutdown abort; ...