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HomeDatabaseMysql Tutorial求职点评:Oracle DBA面试题

求职点评:Oracle DBA面试题

Jun 07, 2016 pm 03:09 PM
oracle interview questions

求职点评:Oracle DBA面试题

IT工作市场是如此的紧张,每个可获得的职位都有一堆人在申请。Naveen Nahata为Oracle E-Business Suite的数据库管理员申请者提供了以下一些面试时的技术问题,它可以帮助申请者们快速脱颖而出。如果你的面试官有类似的问题问你,发个邮件给我,我将会把它添加在列表中。

【专题推荐】:2020年oracle面试题汇总(最新)

  问题

  1、如果信息采集管理系统(ICM)崩溃了怎么办?

  2、你如何加速打补丁的过程?

  3、打补丁的过程中出错了,你怎么办?

  4、请提供克隆过程和克隆之后采取的手工操作的大概步骤。

  5、介绍一下AutoConfig。AutoConfig是如何知道XML文件中的哪个树脂需要被放入哪一个文件的?

  6、你能告诉我,你对一个发生故障的自服务登录问题做哪些测试吗?你要检查哪个配置文件操作选项和文件?

  7、如果你不能看到并发管理日志和输出文件,是哪里出错了?

  8、你是如何更改并发管理日志和输出文件的位置的?

  9、如果用户正遇到性能方面的问题,你如何找到问题的原因?

  10、你如何更改应用程序的密码?

  11、请写出DBC文件的位置,并且解释它的重要性和应用程序如何知道DBC文件名?

  答案

  1所有其他的管理器都会继续工作。ICM只会处理队列控制请求,意思是开启和关闭其他并发的管理器。

  2:

  2.1你可以合并多个补丁。

  2.2你可以为一个非交互的补丁创建一个响应文件。

  2.3你可以通过选项(nocompiledb, nomaintainmrc, nocompilejsp)来应用补丁,并且在应用了所有的补丁之后,一次运行它们。

  3、查看失败工作的日志,找到并且纠正错误,用adctrl 工具重新开启工作。

  4、在源文件上(所有层)运行pre-clone,使用RMAN复制数据库(或者从热或者冷备份中重新存储数据库),拷贝文件系统,然后在目标文件(所有层)上运行post-clone 。

  手工步骤(可能会更多):

  4.1改变所有的非网站配置选项数值(快速克隆的话,只改变网站级别的配置文件选项)。

  4.2 修改工作流和并发管理器表。

  4.3更改打印机。

  5、AutoConfig 使用了一个上下文文件来维护关键的配置文件。一个上下文文件就是一个XML文件,在$APPL_TOP/admin 目录下,进行集中式的存储。

  当你运行AutoConfig 的时候,它读取XML文件,并且创建所有的AutoConfig 管理配置文件。

  对于AutoConfig维护的每个配置文件,都存在一个临时文件来判断哪个数值是从哪个XML文件中得来的。

  6:

  6.1检查DBC文件中的guest的用户名和密码,配置选项guest的用户名和密码、数据库。

  6.2查看apache/jserv是否启动了。

  6.3运行IsItWorking, FND_WEB.PING, aoljtest等。

  7、很有可能是FNDFS监听器停止了。看看FND_CONCURRENT_REQUESTS 表中的OUTFILE_NODE_NAME 和 LOGFILE_NODE_NAME 的数值。看看FND_NODES 表。看看tnsnames.ora 中的FNDFS_ entry 。

  8、日志问卷爱女的位置是由$APPLCSF/$APPLLOG 参数来决定的,输出文件的位置是由$APPLCSF/$APPLOUT 决定的。

  9:

  9.1追踪这个会话(用等待)并且使用tkprof 来分析追踪文件。

  9.2生成statspack 报告并进行分析。

  9.3使用top/iostat/sar/vmstat 监控O/s 。

  9.4通过ping这类基本的测试结果来判断网络的瓶颈。

  10:

  10.1 使用FNDCPASS 来更改APPS密码。

  10.2 手工修改wdbsvr.app/cgiCMD.dat 文件。

  10.3 更改所有从其他环境指过来的数据库链接。

  11:

  11.1位置:$FND_TOP/secure directory

  11.2 重要性:在其他事务中指向数据库服务器。

  11.3 应用程序通过使用“Applications Database Id.”来了解DBC文件的名字。

相关学习推荐:oracle数据库学习教程

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