多选题For which two database objects can the VERSIONS clause of the Flashback Versions Query be used?（）(Choose two.)AviewsBfixed tablesCheap tablesDexternal tablesEtemporary tablesFindex-organized tables (IOT)

题目
多选题
For which two database objects can the VERSIONS clause of the Flashback Versions Query be used?（）(Choose two.)
A

views

B

fixed tables

C

heap tables

D

external tables

E

temporary tables

F

index-organized tables (IOT)

相似考题

1.On which two database objects can the VERSIONS clause of the Flashback Versions Query be used?()A. fixed tablesB. heap tablesC. external tablesD. temporary tablesE. Index-Organized Tables (IOTs)

2.Which of the following statements best describes Flashback Versions Query？（）  A、 Flashback Versions Query is used to make changes to multiple versions of data that existed between two points in time.B、 Flashback Versions Query is used to view all version changes on rows that existed between the time  the query was executed and a point in time in the past.C、 Flashback Versions Query is used to view version changes and the SQL to undo those changes on rows that existed between two points in time.D、 Flashback Versions Query is used to view all version changes on rows that existed between two points in time.

3.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 VERSIONS BETWEEN clause may be used in DDL statements.C、 The VERSIONS BETWEEN clause may not be used to query past DDL changes to tables.D、 The VERSIONS BETWEEN clause may not be used to query past DML statements to tables.

4.For which two database objects can the VERSIONS clause of the Flashback Versions Query be used?()(Choose two.)A. viewsB. fixed tablesC. heap tablesD. external tablesE. temporary tablesF. index-organized tables (IOT)

更多“多选题For which two database objects can the VERSIONS clause of the Flashback Versions Query be used?（）(Choose two.)AviewsBfixed tablesCheap tablesDexternal tablesEtemporary tablesFindex-organized tables (IOT)”相关问题

  • 第1题：

    Your Oracle Database 10g is online when you execute the following statement：        SQL>ALTER TABLESPACE MY_TABLESPACE FLASHBACK OFF；   What is the result of executing this statement if the Flashback Database feature is already enabled in the database？（）

    • A、 The database does not record flashback logs for MY_TABLESPACE
    • B、 The tables residing in MY_TABLESPACE are not protected by the Recycle Bin.
    • C、 All the tablespaces except MY_TABLESPACE can be recovered using Flashback Database feature.
    • D、 None of the flashback technologies， such as Flashback Table， Flashback Transaction Query and Flashback Version Query can be used to recover individual rows within the objects from MY_TABLESPACE

    正确答案:A

  • 第2题：

    On which two database objects can the VERSIONS clause of the Flashback Versions Query be used?（）

    • A、fixed tables
    • B、heap tables
    • C、external tables
    • D、temporary tables
    • E、Index-Organized Tables (IOTs)

    正确答案:B,E

  • 第3题：

    Which of the following can be used in conjunction with a Flashback Versions Query to filter the results？（）

    • A、 A range of SCN values
    • B、 A list of SCN values
    • C、 A starting and ending timestamp
    • D、 Minimum and maximum sequence values
    • E、 A list of sequence values

    正确答案:A,C

  • 第4题：

    You are working in an online transaction processing （OLTP） environment. You realize that the salary for an employee， John， has been accidentally modified in the EMPLOYEES table. Two days ago， the data was in the correct state. Flashback logs generated during last two days are available in the flash recovery area.  Which option would you choose to bring the data to the correct state while ensuring that no other data in the same table is affected？（）

    • A、perform point-in-time recovery
    • B、perform a Flashback Table operation to restore the table to the state it was in two days ago
    • C、perform a Flashback Database operation to restore the database to the state it was in two days ago
    • D、perform Flashback Versions Query and Flashback Transaction Query to determine all the necessary undo SQL statements， and then use them for recovery

    正确答案:D

  • 第5题：

    Which statement is true regarding Flashback Version Query？ （）

    • A、 It returns versions of rows only within a transaction.
    • B、 It can be used in subqueries contained only in a SELECT statement.
    • C、 It will return an error if the undo retention time is less than the lower bound time or SCN specified.
    • D、 It retrieves all versions including the deleted as well as subsequently reinserted versions of the rows.

    正确答案:D

  • 第6题：

    Which pseudocolumn could you use to identify a unique row in a Flashback Versions Query？（）

    • A、 XID
    • B、 VERSIONS_PK
    • C、 VERSIONS_XID
    • D、 VERSIONS_UNIQUE

    正确答案:C

  • 第7题：

    单选题
    You work as a database administrator at Certkiller .com. You are working in an online transaction processing （OLTP） environment. You realize that the salary for an employee， John， has been accidentally modified in the EMPLOYEEStable. Two days ago， the data was in the correct state. Flashback logs generated during last two days are available in the flash recovery area. Which option would you choose to bring the data to the correct state while ensuring that no other data in the same table is affected？（）
    A

     perform point-in-time recovery

    B

     perform a Flashback Table operation to restore the table to the state it was in two days ago

    C

     perform a Flashback Database operation to restore the database to the state it was in two days ago

    D

     perform Flashback Versions Query and Flashback Transaction Query to determine all the necessary undo SQL statements， and then use them for recovery


    正确答案： B
    解析： 暂无解析

  • 第8题：

    多选题
    On which two database objects can the VERSIONS clause of the Flashback Versions Query be used?（）
    A

    fixed tables

    B

    heap tables

    C

    external tables

    D

    temporary tables

    E

    Index-Organized Tables (IOTs)


    正确答案： C,B
    解析： 暂无解析

  • 第9题：

    单选题
    Which of the following statements best describes Flashback Versions Query？（）
    A

     Flashback Versions Query is used to make changes to multiple versions of data that existed between two points in time.

    B

     Flashback Versions Query is used to view all version changes on rows that existed between the time  the query was executed and a point in time in the past.

    C

     Flashback Versions Query is used to view version changes and the SQL to undo those changes on rows that existed between two points in time.

    D

     Flashback Versions Query is used to view all version changes on rows that existed between two  points in time.


    正确答案： B
    解析： 暂无解析

  • 第10题：

    单选题
    By mistake， you ran the batch job （for updating the BILL_DETAILS table） twice. You are not sure which rows in the BILL_DETAILS table were affected. You need to identify：  a） a list of changes made along with the transaction identifier of each change  b） the necessary SQL statements to undo the erroneous changes  Which option would you choose？（）
    A

    RMAN only

    B

    Flashback Table only

    C

    Flashback Versions Query only

    D

    Flashback Database and Flashback Transaction Query

    E

    Flashback Versions Query and Flashback Transaction Query


    正确答案： C
    解析： 暂无解析

  • 第11题：

    多选题
    Which two statements are correct regarding the Flashback Versions Query feature？（）
    A

    You can use this feature to identify the committed versions of the rows， but not the uncommitted versions.

    B

    You can use this feature to identify the versions of V$ views.

    C

    You can use this feature to identify the inserts， deletes， and updates performed on a particular row but not the data definition language （DDL） operations performed on the table.

    D

    You can use this feature for a table only if row movement is enabled for the table.

    E

    You can use this feature to identify the versions of external and fixed tables.


    正确答案： A,C
    解析： 暂无解析

  • 第12题：

    单选题
    Your Oracle Database 10g is online when you execute the following statement：        SQL>ALTER TABLESPACE MY_TABLESPACE FLASHBACK OFF；   What is the result of executing this statement if the Flashback Database feature is already enabled in the database？（）
    A

     The database does not record flashback logs for MY_TABLESPACE

    B

     The tables residing in MY_TABLESPACE are not protected by the Recycle Bin.

    C

     All the tablespaces except MY_TABLESPACE can be recovered using Flashback Database feature.

    D

     None of the flashback technologies， such as Flashback Table， Flashback Transaction Query and Flashback Version Query can be used to recover individual rows within the objects from MY_TABLESPACE


    正确答案： B
    解析： 暂无解析

  • 第13题：

    By mistake， you ran the batch job （for updating the BILL_DETAILS table） twice. You are not sure which rows in the BILL_DETAILS table were affected. You need to identify：  a） a list of changes made along with the transaction identifier of each change  b） the necessary SQL statements to undo the erroneous changes  Which option would you choose？（）

    • A、RMAN only
    • B、Flashback Table only
    • C、Flashback Versions Query only
    • D、Flashback Database and Flashback Transaction Query
    • E、Flashback Versions Query and Flashback Transaction Query

    正确答案:E

  • 第14题：

    You are maintaining your OLTP database in Oracle10g. You are performing the Flashback Transaction Query to find the undo SQL statements that can be used to undo the changes made to the database in the specific time period. Which pseudocolumn will you use to perform the Flashback Transaction Query？（）

    • A、 VERSIONS_STARTSCN
    • B、 VERSIONS_STARTTIME
    • C、 VERSIONS_XID
    • D、 VERSIONS_OPERATION

    正确答案:C

  • 第15题：

    Which two statements are correct regarding the Flashback Versions Query feature？（）

    • A、 You can use this feature to identify the committed versions of the rows， but not the uncommitted versions.
    • B、 You can use this feature to identify the versions of V$ views.
    • C、 You can use this feature to identify the inserts， deletes， and updates performed on a particular row but not the data definition language （DDL） operations performed on the table.
    • D、 You can use this feature for a table only if row movement is enabled for the table.
    • E、 You can use this feature to identify the versions of external and fixed tables.

    正确答案:A,C

  • 第16题：

    For which two database objects can the VERSIONS clause of the Flashback Versions Query be used?（）(Choose two.)

    • A、views
    • B、fixed tables
    • C、heap tables
    • D、external tables
    • E、temporary tables
    • F、index-organized tables (IOT)

    正确答案:C,F

  • 第17题：

    You work as a database administrator at Certkiller .com. You are working in an online transaction processing （OLTP） environment. You realize that the salary for an employee， John， has been accidentally modified in the EMPLOYEEStable. Two days ago， the data was in the correct state. Flashback logs generated during last two days are available in the flash recovery area. Which option would you choose to bring the data to the correct state while ensuring that no other data in the same table is affected？（）

    • A、 perform point-in-time recovery
    • B、 perform a Flashback Table operation to restore the table to the state it was in two days ago
    • C、 perform a Flashback Database operation to restore the database to the state it was in two days ago
    • D、 perform Flashback Versions Query and Flashback Transaction Query to determine all the necessary undo SQL statements， and then use them for recovery

    正确答案:D

  • 第18题：

    单选题
    Which statement is true regarding Flashback Version Query？（）
    A

     It returns versions of rows only within a transaction.

    B

     It can be used in subqueries contained only in a SELECT statement.

    C

     It will return an error if the undo retention time is less than the lower bound time or SCN specified.

    D

     It retrieves all versions including the deleted as well as subsequently reinserted versions of the rows.


    正确答案： C
    解析： 暂无解析

  • 第19题：

    多选题
    For which two database objects can the VERSIONS clause of the Flashback Versions Query be used?（）(Choose two.)
    A

    views

    B

    fixed tables

    C

    heap tables

    D

    external tables

    E

    temporary tables

    F

    index-organized tables (IOT)


    正确答案： F,A
    解析： 暂无解析

  • 第20题：

    单选题
    You are maintaining your OLTP database in Oracle10g. You are performing the Flashback Transaction Query to find the undo SQL statements that can be used to undo the changes made to the database in the specific time period. Which pseudocolumn will you use to perform the Flashback Transaction Query？（）
    A

     VERSIONS_STARTSCN

    B

     VERSIONS_STARTTIME

    C

     VERSIONS_XID

    D

     VERSIONS_OPERATION


    正确答案： A
    解析： 暂无解析

  • 第21题：

    多选题
    Which two statements are true regarding the USING and ON clauses in table joins?（）
    A

    Both USING and ON clauses can be used for equijoins and nonequijoins

    B

    Amaximum of one pair of columns can be joined between two tables using the ON clause

    C

    The ON clause can be used to join tables on columns that have different names but compatible data types

    D

    The WHERE clause can be used to apply additional conditions in SELECT statements containing the ON or the USING clause


    正确答案： A,C
    解析： 暂无解析

  • 第22题：

    单选题
    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 VERSIONS BETWEEN clause may be used in DDL statements.

    C

     The VERSIONS BETWEEN clause may not be used to query past DDL changes to tables.

    D

     The VERSIONS BETWEEN clause may not be used to query past DML statements to tables.


    正确答案： D
    解析： 暂无解析

  • 第23题：

    多选题
    Which of the following can be used in conjunction with a Flashback Versions Query to filter the results？（）
    A

    A range of SCN values

    B

    A list of SCN values

    C

    A starting and ending timestamp

    D

    Minimum and maximum sequence values

    E

    A list of sequence values


    正确答案： C,A
    解析： 暂无解析

  • 第24题：

    单选题
    Which pseudocolumn could you use to identify a unique row in a Flashback Versions Query？（）
    A

     XID

    B

     VERSIONS_PK

    C

     VERSIONS_XID

    D

     VERSIONS_UNIQUE


    正确答案： C
    解析： 暂无解析

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