随笔分类 -  Flashback

摘要:On Friday at 11:30 am you decided to flash back the database because of a user error that occurred at 8:30 am.Which option must you use to check wheth 阅读全文
posted @ 2017-11-15 15:41 巴啦啦大魔王 阅读(109) 评论(0) 推荐(0)
摘要:You plan to execute the following command to perform a Flashback Database operation in your database:SQL> FLASHBACK DATABASE TO TIMESTAMP (SYSDATE -5/ 阅读全文
posted @ 2017-11-15 15:31 巴啦啦大魔王 阅读(113) 评论(0) 推荐(0)
摘要:The RECYCLEBIN parameter is set to ON for your database. You drop a table, PRODUCTS, from the SCOTT schema.Which two statements are true regarding the 阅读全文
posted @ 2017-11-15 15:24 巴啦啦大魔王 阅读(132) 评论(0) 推荐(0)
摘要:View the exhibit and examine the output. Which statement can be an inference from the output?Exhibit: A. The FRA disk group has an asynchronous I/O bo 阅读全文
posted @ 2017-11-15 15:10 巴啦啦大魔王 阅读(214) 评论(0) 推荐(0)
摘要:What are the prerequisites for performing flashback transactions? (Choose all that apply)A.Supplemental log must be enabledB.Supplemental log must be 阅读全文
posted @ 2017-11-15 14:56 巴啦啦大魔王 阅读(130) 评论(0) 推荐(0)
摘要:You executed the following query: Considering that all the redo logs are available, what information can you derive from the output of the preceding q 阅读全文
posted @ 2017-11-15 14:11 巴啦啦大魔王 阅读(119) 评论(0) 推荐(0)
摘要:You execute the following FLASHBACK TABLE command: Which two statements are correct?(Choose two.)A.The EMP table that was dropped by mistake earlier i 阅读全文
posted @ 2017-11-15 13:25 巴啦啦大魔王 阅读(140) 评论(0) 推荐(0)
摘要:To clean up old records that are in a Flashback Data Archive and are past the retention period, what must the DBA do?A. TRUNCATE the archive table.B. 阅读全文
posted @ 2017-11-13 17:46 巴啦啦大魔王 阅读(114) 评论(0) 推荐(0)
摘要:When setting up the Flashback Data Archive, which of these key parameters are required? (Choose all that apply.)A. Tablespace nameB. Storage quotaC. R 阅读全文
posted @ 2017-11-13 17:42 巴啦啦大魔王 阅读(66) 评论(0) 推荐(0)
摘要:Which of these are valid Flashback Database recovery point parameters? (Choose all that apply.)A. SCNB. TimestampC. Named recovery pointD. Transaction 阅读全文
posted @ 2017-11-13 17:33 巴啦啦大魔王 阅读(96) 评论(0) 推荐(0)
摘要:The _______ writes the Flashback Database logs in the flash recovery area.A. FLSHB. FLDBC. RVWRD. RVRWE. FBDA The Flashback Database architecture cons 阅读全文
posted @ 2017-11-13 17:02 巴啦啦大魔王 阅读(112) 评论(0) 推荐(0)
摘要:Flashback Database relies on which technologies to recover to a point in time?A. Flashback Data ArchiveB. Flashback logs in the flash recovery areaC. 阅读全文
posted @ 2017-11-13 16:52 巴啦啦大魔王 阅读(146) 评论(0) 推荐(0)
摘要:Which method could be utilized to identify both DML operations and the SQL statements needed toundo those operations for a specific schema owner? (Cho 阅读全文
posted @ 2017-11-13 16:47 巴啦啦大魔王 阅读(99) 评论(0) 推荐(0)
摘要:You have just performed a FLASHBACK TABLE operation using the following command:flashback table employees to scn 123456;The employees table has trigge 阅读全文
posted @ 2017-11-13 15:56 巴啦啦大魔王 阅读(136) 评论(0) 推荐(0)
摘要:Which of the following statements is true regarding implementing a Flashback Table recovery?A. An SCN is never used to perform a Flashback Table recov 阅读全文
posted @ 2017-11-13 15:52 巴啦啦大魔王 阅读(203) 评论(0) 推荐(0)
摘要:Which of the following statements is true regarding the VERSIONS BETWEEN clause?A. The VERSIONS BETWEEN clause may be used in DML statements.B. The VE 阅读全文
posted @ 2017-11-13 15:43 巴啦啦大魔王 阅读(124) 评论(0) 推荐(0)
摘要:At the request of a user, you issue the following command to restore a dropped table: flashback table "BIN$F2JFfMq8Q5unbC0ceE9eJg==$0" to before drop; 阅读全文
posted @ 2017-11-13 15:39 巴啦啦大魔王 阅读(112) 评论(0) 推荐(0)
摘要:Which of the following can be used in conjunction with a Flashback Versions Query to filter the results?(Choose all that apply.)A. A range of SCN valu 阅读全文
posted @ 2017-11-13 15:32 巴啦啦大魔王 阅读(108) 评论(0) 推荐(0)
摘要:Which pseudocolumn could you use to identify a unique row in a Flashback Versions Query?A. XIDB. VERSIONS_PKC. VERSIONS_XIDD. VERSIONS_UNIQUE 阅读全文
posted @ 2017-11-13 15:29 巴啦啦大魔王 阅读(84) 评论(0) 推荐(0)
摘要:Which of the following statements best describes Flashback Versions Query?A. Flashback Versions Query is used to make changes to multiple versions of 阅读全文
posted @ 2017-11-13 15:27 巴啦啦大魔王 阅读(101) 评论(0) 推荐(0)