Examine the parameters for a database instance:

NAME TYPE VALUE
-------------------------------- -------------- ---------------
temp_undo_enabled boolean TRUE
undo_management string AUTO
undo_retention integer 900
undo_tablespace string UNDOTBSl

Your database has three undo tablespaces and the default undo tablespace is not autoextensible. Resumable space allocation is not enabled for any sessions in the database instance.

What is the effect on new transactions when all undo space in the default undo tablespace is in use by active transactions?

A. Transactions write their undo in the system undo segment.
B. Transactions wait until space becomes available in undotbs1.
C. Transactions write their undo in a temporary tablespace.
D. Transactions fail.

Answer: D

【解析】
UNDO表空间中，活动事务使用的空间是不能够被覆写的。如果UNDO表空间空间满，无法覆写时，新的事务无法分配UNDO空间，因此会失败。

1z0-062 题库解析2的更多相关文章

  1. 【OCP|052】OCP最新题库解析（052）--小麦苗解答版

    [OCP|052]OCP最新题库解析(052)--小麦苗解答版 OCP最新题库解析历史连接(052):http://mp.weixin.qq.com/s/bUgn4-uciSndji_pUbLZfA ...

  2. OCP考试062题库出现大量新题-19

    choose three Which three statements are true about Oracle Data Pump? A) Oracle Data Pump export and ...

  3. OCP 12c考试题，062题库出现大量新题-第20道

    choose three Your database is configured for ARCHIVELOG mode, and a daily full database backup is ta ...

  4. OCP考试062题库出现大量新题-18

    choose two Examine this command executed on a client that is remote from the database server. SQL> ...

  5. 【2019】OCP 12c 062题库更新大量新题-7

    7.daily_ords_lst is created in locally managed tablespace ORDERS_TBS which uses automatic segment sp ...

  6. 【新题】OCP 062题库出现很多新题-6

    6.Which four statements are true about database instance behavior? A) Redo log files can be renamed ...

  7. OCP 12c 062题库大更新，出现大量新题-5

    5.One of your databases supports an OLTP workload. The default undo tablespace is fixed size with: 1 ...

  8. 1z0-062 题库解析5

    题目: Which three statements are true about Flashback Database? A. Flashback logs are written sequenti ...

  9. 1z0-062 题库解析4

    题目: Examine this parameter: NAME                     TYPE          VALUE ------------------------ -- ...

  10. 1z0-062 题库解析3

    The hr user executes the following query on the employees table but does not issue commit, rollback, ...

随机推荐

  1. BZOJ 2160: 拉拉队排练（回文树）

    传送门: [1]:BZOJ [2]:洛谷 •题意 求串 s 中出现的所有奇回文串,并按照长度由大到小排序: 输出前 k 个奇回文串的乘积 mod 19930726; 如果奇回文串的个数不足 k 个,输 ...

  2. H3C RIP路由表的更新

  3. C# 在 8.0 对比 string 和 string? 的类型

    在 C# 8.0 的时候提供了可空字符串的判断,但是可空字符串和字符串的类型是不是不同的? 打开 VisualStudio 2019 这时就不能再使用 VisualStudio 2017 因为不支持 ...

  4. navicat for mysql (10038)如何解决

    1.授权(youpassword修改为你的密码) #本机登陆mysql: $:mysql -u root -p #改变数据库: mysql>use mysql; #从所有主机: mysql> ...

  5. H3C 使用tracert命令

  6. ASP.NET MVC4.0+EF+LINQ+bui+bootstrap+网站+角色权限管理系统（4）

    接下来就是菜单管理了,菜单分为两部分,一部分是菜单管理,另一部分是左边的树形菜单 数据库添加菜单表Menus USE [MVCSystem] GO /****** Object: Table [dbo ...

  7. 遍历$.map和$.each

    <body> <p style="color:red;"><b>Values: </b></p> <form> ...

  8. C# AutoResetEvent 理解

    .. AutoResetEvent在内存中保持着一个bool值值为False,则使线程阻塞:值为True,使线程退出阻塞: 创建AutoResetEvent对象的实例,在函数构造中传递默认的bool值 ...

  9. Linux 内核 中断 urb

    函数 usb_fill_int_urb 是一个帮忙函数, 来正确初始化一个 urb 来发送给 USB 设备的 一个中断端点: void usb_fill_int_urb(struct urb *urb ...

  10. Linux USB 和 sysfs

    由于单个 USB 物理设备的复杂性, 设备在 sysfs 中的表示也非常复杂. 物理 USB 设备 (通过 struct usb_device 表示)和单个 USB 接口(由 struct usb_i ...