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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)
参考答案
更多 “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)” 相关考题
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On which two database objects can the VERSIONS clause of the Flashback Versions Query be used?()
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For which two database objects can the VERSIONS clause of the Flashback Versions Query be used?()(Choose two.)
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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.
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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.
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While designing the database for one of your online transaction processing （OLTP） applications， you want to achieve the following： a） high availability of data b） faster primary key access to the table data c） compact storage for the table Which type of tables would you use to achieve these objectives？（） A、heap tablesB、object tablesC、partitioned tablesD、index-organized tables （IOTs）
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Your Oracle Database 10g is online when you execute the following statement： SQLALTER 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_TABLESPACEB、 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
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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 onlyB、Flashback Table onlyC、Flashback Versions Query onlyD、Flashback Database and Flashback Transaction QueryE、Flashback Versions Query and Flashback Transaction Query
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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)
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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_STARTSCNB、 VERSIONS_STARTTIMEC、 VERSIONS_XIDD、 VERSIONS_OPERATION
考题
Which of the following can be used in conjunction with a Flashback Versions Query to filter the results？（）A、 A range of SCN valuesB、 A list of SCN valuesC、 A starting and ending timestampD、 Minimum and maximum sequence valuesE、 A list of sequence values
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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.
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In one of your online transaction processing （OLTP） applications， most users frequently modify the values， including the key values， of the application tables. Some users generate application reports by using multiple application tables. What is the best table structure that you can use to gain optimal performance？（）A、heap tableB、object tableC、external tableD、clustered tableE、global temporary tableF、index-organized table （IOT）
考题
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.
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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 recoveryB、 perform a Flashback Table operation to restore the table to the state it was in two days agoC、 perform a Flashback Database operation to restore the database to the state it was in two days agoD、 perform Flashback Versions Query and Flashback Transaction Query to determine all the necessary undo SQL statements， and then use them for recovery
考题
Which pseudocolumn could you use to identify a unique row in a Flashback Versions Query？（）A、 XIDB、 VERSIONS_PKC、 VERSIONS_XIDD、 VERSIONS_UNIQUE
考题
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.
考题
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)
考题
多选题On which two database objects can the VERSIONS clause of the Flashback Versions Query be used?（）Afixed tablesBheap tablesCexternal tablesDtemporary tablesEIndex-Organized Tables (IOTs)
考题
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_STARTSCNB
VERSIONS_STARTTIMEC
VERSIONS_XIDD
VERSIONS_OPERATION
考题
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.
考题
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 onlyB
Flashback Table onlyC
Flashback Versions Query onlyD
Flashback Database and Flashback Transaction QueryE
Flashback Versions Query and Flashback Transaction Query
考题
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.
考题
多选题Which of the following can be used in conjunction with a Flashback Versions Query to filter the results？（）AA range of SCN valuesBA list of SCN valuesCA starting and ending timestampDMinimum and maximum sequence valuesEA list of sequence values
考题
单选题While designing the database for one of your online transaction processing （OLTP） applications， you want to achieve the following： a） high availability of data b） faster primary key access to the table data c） compact storage for the table Which type of tables would you use to achieve these objectives？（）A
heap tablesB
object tablesC
partitioned tablesD
index-organized tables （IOTs）
考题
单选题Which pseudocolumn could you use to identify a unique row in a Flashback Versions Query？（）A
XIDB
VERSIONS_PKC
VERSIONS_XIDD
VERSIONS_UNIQUE
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