多选题Which two statements are correct regarding the Oracle Flashback Drop feature? ()ARecycle bin exists for the tables only in non-SYSTEM, locally managed tablespaces.BYou can flash back a dropped table provided row movement has been enabled on the table.CIf you drop an index before dropping its associated table, then the recovery of the index is not supported when you flash back the dropped table.DWhen you execute the DROP TABLESPACE? INCLUDING CONTENTS command, the objects in the tablespace are places in the recycle bin.EWhen a dropped table is moved to the recycle bin, only the table is renamed to a system-generated name; its associated objects and constraints are not renamed.FIf you drop a table that is protected by the recycle bin, then associated bitmap-joined indexes and materialized view logs are also stored in the recycle bin.

多选题
Which two statements are correct regarding the Oracle Flashback Drop feature? ()
A

Recycle bin exists for the tables only in non-SYSTEM, locally managed tablespaces.

B

You can flash back a dropped table provided row movement has been enabled on the table.

C

If you drop an index before dropping its associated table, then the recovery of the index is not supported when you flash back the dropped table.

D

When you execute the DROP TABLESPACE? INCLUDING CONTENTS command, the objects in the tablespace are places in the recycle bin.

E

When a dropped table is moved to the recycle bin, only the table is renamed to a system-generated name; its associated objects and constraints are not renamed.

F

If you drop a table that is protected by the recycle bin, then associated bitmap-joined indexes and materialized view logs are also stored in the recycle bin.


参考解析

解析: 暂无解析

相关考题:

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 outcome of this action?() A. All the related indexes and views are automatically droppedB. The flashback drop feature can recover only the table structureC. Only the related indexes are dropped whereas views are invalidatedD. The flashback drop feature can recover both the table structure and its data

Which two statements regarding the Flashback Table feature are correct?() A. Flashback Table can be performed on system tables.B. Flashback Table operation does not shrink the segments.C. Flashback Table uses log mining to extract SQL_REDO and SQL_UNDO statements.D. Flashback Table operation acquires exclusive data manipulation language (DML) locks.

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 outcome of this action? ()(Choose two) A. All the related indexes and views are automatically droppedB. The flashback drop feature can recover only the table structureC. Only the related indexes are dropped whereas views are invalidatedD. The flashback drop feature can recover both the table structure and its data

You are working on an Oracle Database 10g database. You enabled the Flashback Database feature. Which two statements regarding flashback logs are true? ()A、 Flashback logs are not archived.B、 Flashback logs are maintained in redo log files.C、 Flashback logs are maintained in the Flash Recovery Area.D、 Flashback logs are used to maintain Flashback Database related errors.E、 Flashback logs need to be cleared manually after you disable Flashback Database.

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 outcome of this action? ()(Choose two)A、All the related indexes and views are automatically droppedB、The flashback drop feature can recover only the table structureC、Only the related indexes are dropped whereas views are invalidatedD、The flashback drop feature can recover both the table structure and its data

On Monday, you dropped the DEPT table from your schema and then you re-created the DEPT table in your schema. On Wednesday, you have a requirement to restore the DEPT table from the recycle bin. Which statement is correct?()A、 You cannot restore the DEPT table by using the Oracle Flashback Drop feature because a table with the name DEPT already exists in your schema.B、 You can restore the DEPT table by using the Oracle Flashback Drop feature, provided you use the RENAME TO clause.C、 You cannot restore the DEPT table by using the Oracle Flashback Drop feature because the contents of the recycle bin are purged every 12 hours by default.D、 You can restore the DEPT table by using the Oracle Flashback Drop feature and a system-generated name will be assigned to the restored table.

For which two SQL statements can you use the Flashback Table feature to revert a table to its previous state?()A、UPDATE TABLEB、CREATE CLUSTERC、TRUNCATE TABLED、ALTER TABLE MOVEE、INSERT INTO···VALUESF、ALTER TABLE···DROP COLUMNG、ALTER TABLE···DROP PARTITION

You execute this command to drop the ITEM table, which has the primary key referred in the ORDERtable:  SQL DROP TABLE scott.item CASCADE CONSTRAINTS PURGE;  Which two statements are true about the effect of the command()A、No flashback is possible to bring back the ITEM table.B、The ORDER table is dropped along with the ITEM table.C、The dependent referential integrity constraints in the ORDER table are disabled.D、The dependent referential integrity constraints in the ORDER table are removed.E、The table definition of the ITEM table and associated indexes are placed in the recycle bin.

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.

On Monday, you dropped the DEPT table from your schema and then you re-created the DEPT table in your schema. On Wednesday, you have a requirement to restore the DEPT table from the recycle bin.  Which statement is correct?() A、You can restore the DEPT table by using the Oracle Flashback Drop feature, provided you use the RENAME TO clause.B、You can restore the DEPT table by using the Oracle Flashback Drop feature and a system-generated name will be assigned to the restored table.C、You cannot restore the DEPT table by using the Oracle Flashback Drop feature because a table with the name DEPT already exists in your schema.D、You cannot restore the DEPT table by using the Oracle Flashback Drop feature because the contents of  the recycle bin are purged every 12 hours by default.

Which two statements are correct regarding the Oracle Flashback Drop feature? ()A、 Recycle bin exists for the tables only in non-SYSTEM, locally managed tablespaces.B、 You can flash back a dropped table provided row movement has been enabled on the table.C、 If you drop an index before dropping its associated table, then the recovery of the index is not supported when you flash back the dropped table.D、 When you execute the DROP TABLESPACE? INCLUDING CONTENTS command, the objects in the tablespace are places in the recycle bin.E、 When a dropped table is moved to the recycle bin, only the table is renamed to a system-generated name; its associated objects and constraints are not renamed.F、 If you drop a table that is protected by the recycle bin, then associated bitmap-joined indexes and materialized view logs are also stored in the recycle bin.

Which of the following statements are true regarding the Recycle Bin?()A、 The Recycle Bin is a physical storage area for dropped objects.B、 The Recycle Bin is a logical container for dropped objects.C、 The Recycle Bin stores the results of a Flashback Drop operation.D、 The objects in the Recycle Bin are stored in the tablespace in which they were created.

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 outcome of this action?()A、 All the related indexes and views are automatically droppedB、 The flashback drop feature can recover only the table structureC、 Only the related indexes are dropped whereas views are invalidatedD、 The flashback drop feature can recover both the table structure and its data

You execute this command to drop the ITEM table, which has the primary key referred in the ORDERS table:SQL DROP TABLE scott.item CASCADE CONSTRAINTS PURGE;  Which two statements are true about theeffect of the command()A、No flashback is possible to bring back the ITEM table.B、The ORDERS table is dropped along with the ITEM table.C、The dependent referential integrity constraints in the ORDERS table are disabled.D、The dependent referential integrity constraints in the ORDERS table are removed.E、The table definition of the ITEM table and associated indexes are placed in the recycle bin

Which of the following statements is true regarding implementing a Flashback Table recovery?  ()A、 An SCN is never used to perform a Flashback Table recovery.B、 If a significant number of changes have been made to the table, row movement must be enabled.C、 The tablespace must be offline before performing a Flashback Table recovery.D、 Flashback Table recovery is completely dependent on the availability of undo data in the undo tablespace.

Which two statements are true regarding single row functions?()A、They accept only a single argument B、They can be nested only to two levels C、Arguments can only be column values or constants D、They always return a single result row for every row of a queried table E、They can return a data type value different from the one that is referenced

单选题Which of the following statements is true regarding implementing a Flashback Table recovery?  ()A An SCN is never used to perform a Flashback Table recovery.B If a significant number of changes have been made to the table, row movement must be enabled.C The tablespace must be offline before performing a Flashback Table recovery.D Flashback Table recovery is completely dependent on the availability of undo data in the undo tablespace.

多选题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 outcome of this action? ()(Choose two)AAll the related indexes and views are automatically droppedBThe flashback drop feature can recover only the table structureCOnly the related indexes are dropped whereas views are invalidatedDThe flashback drop feature can recover both the table structure and its data

多选题Which two statements are correct regarding the Oracle Flashback Drop feature? ()ARecycle bin exists for the tables only in non-SYSTEM, locally managed tablespaces.BYou can flash back a dropped table provided row movement has been enabled on the table.CIf you drop an index before dropping its associated table, then the recovery of the index is not supported when you flash back the dropped table.DWhen you execute the DROP TABLESPACE? INCLUDING CONTENTS command, the objects in the tablespace are places in the recycle bin.EWhen a dropped table is moved to the recycle bin, only the table is renamed to a system-generated name; its associated objects and constraints are not renamed.FIf you drop a table that is protected by the recycle bin, then associated bitmap-joined indexes and materialized view logs are also stored in the recycle bin.

多选题For which two SQL statements can you use the Flashback Table feature to revert a table to its previous state?()AUPDATE TABLEBCREATE CLUSTERCTRUNCATE TABLEDALTER TABLE MOVEEINSERT INTO···VALUESFALTER TABLE···DROP COLUMNGALTER TABLE···DROP PARTITION

多选题Which of the following statements are true regarding the Recycle Bin?()AThe Recycle Bin is a physical storage area for dropped objects.BThe Recycle Bin is a logical container for dropped objects.CThe Recycle Bin stores the results of a Flashback Drop operation.DThe objects in the Recycle Bin are stored in the tablespace in which they were created.

多选题You execute this command to drop the ITEM table, which has the primary key referred in the ORDERtable:  SQL DROP TABLE scott.item CASCADE CONSTRAINTS PURGE;  Which two statements are true about the effect of the command()ANo flashback is possible to bring back the ITEM table.BThe ORDER table is dropped along with the ITEM table.CThe dependent referential integrity constraints in the ORDER table are disabled.DThe dependent referential integrity constraints in the ORDER table are removed.EThe table definition of the ITEM table and associated indexes are placed in the recycle bin.

多选题Which two statements regarding the Flashback Table feature are correct?()AFlashback Table can be performed on system tables.BFlashback Table operation does not shrink the segments.CFlashback Table uses log mining to extract SQL_REDO and SQL_UNDO statements.DFlashback Table operation acquires exclusive data manipulation language (DML) locks.

多选题Which two statements are correct regarding the Flashback Versions Query feature?()AYou can use this feature to identify the committed versions of the rows, but not the uncommitted versions.BYou can use this feature to identify the versions of V$ views.CYou 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.DYou can use this feature for a table only if row movement is enabled for the table.EYou can use this feature to identify the versions of external and fixed tables.

多选题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 outcome of this action?()AAll the related indexes and views are automatically droppedBThe flashback drop feature can recover only the table structureCOnly the related indexes are dropped whereas views are invalidatedDThe flashback drop feature can recover both the table structure and its data

单选题Which statement is true regarding synonyms?()ASynonyms can be created only for a table BSynonyms are used to reference only those tables that are owned by another user CA public synonym and a private synonym can exist with the same name for the same table DThe DROP SYNONYM statement removes the synonym, and the table on which the synonym has been created becomes invalid

多选题You execute this command to drop the ITEM table, which has the primary key referred in the ORDERS table:SQL DROP TABLE scott.item CASCADE CONSTRAINTS PURGE;  Which two statements are true about theeffect of the command()ANo flashback is possible to bring back the ITEM table.BThe ORDERS table is dropped along with the ITEM table.CThe dependent referential integrity constraints in the ORDERS table are disabled.DThe dependent referential integrity constraints in the ORDERS table are removed.EThe table definition of the ITEM table and associated indexes are placed in the recycle bin

多选题You are working on an Oracle Database 10g database. You enabled the Flashback Database feature. Which two statements regarding flashback logs are true? ()AFlashback logs are not archived.BFlashback logs are maintained in redo log files.CFlashback logs are maintained in the Flash Recovery Area.DFlashback logs are used to maintain Flashback Database related errors.EFlashback logs need to be cleared manually after you disable Flashback Database.