1Z0-053 Exam Dumps | Which statement is true regarding online redefinition for the migration of BasicFile LOBs to SecureFile

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Question 390/700

Which statement is true regarding online redefinition for the migration of BasicFile LOBs to SecureFile LOBs?

A. It cannot be done in parallel.

B. It can be done at the table level or partition level.

C. It does not require additional storage because the operation is done online.

D. Local and global indexes are maintained automatically during the operation.

Correct Answer: B

Explanation/Reference:
Explanation:
Compatibility and Upgrading
All features described in this document are enabled with compatibility set to 11.2.0.0.0 or higher. There is no downgrade capability after 11.2.0.0.0 is set.
If you want to upgrade BasicFiles LOBs to SecureFiles LOBs, you must use typical methods for upgrading data (CTAS/ITAS, online redefinition, export/import, column to column copy, or using a view and a new column). Most of these solutions require twice the disk space used by the data in the input LOB column.
However, partitioning and taking these actions on a partition-by-partition basis lowers the disk space requirements.
Migrating Columns from BasicFiles LOBs to SecureFiles LOBs
The method of migrating LOBs columns is presented in this section.
Preventing Generation of REDO Space when Migrating to SecureFiles LOBs
Generation of redo space can cause performance problems during the process of migrating BasicFiles LOB columns. Redo changes for the table are logged during the migration process only if the table has LOGGING set.
Redo changes for the column being converted from BasicFiles LOB to SecureFiles LOB are logged only if the storage characteristics of the SecureFiles LOB column indicate LOGGING. The logging setting (LOGGING or NOLOGGING) for the LOB column is inherited from the tablespace in which the LOB is created.
To prevent generation of redo space during migration make sure that you specify the NOLOGGING storage parameter for the new SecureFiles LOB column(s). You can turn LOGGING on once your migration is complete.
Online Redefinition for BasicFiles LOBs
Online redefinition is the only recommended method for migration of BasicFiles LOBs to SecureFiles LOBs. It can be done at the table or partition level.
Online Redefinition Advantages
No requirement to take the table or partition offline Can be done in parallel

Online Redefinition Disadvantages
Additional storage equal to the entire table or partition and all LOB segments must be available Global

indexes must be rebuilt

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You are pl...; Question 422: Which of the following are valid program types for a lightwe...; Question 423: Identify two situations in which you can use Data Recovery A...; Question 424: You issued the following RMAN command to back up the databas...; Question 425: Which Scheduler view(s) can be queried to see which jobs are...; Question 426: You have a range-partitioned table in your database. Each pa...; Question 427: What two are the prerequisites for enabling Flashback Databa...; Question 428: The EMP table has some discrepancy in data entry with a part...; Question 429: You set the following parameters in the parameter file and r...; Question 430: The following command is executed to shut down an Automatic ...; Question 431: Which NLS parameter directly governs linguistic searches?...; Question 432: A user sends you an email with the following error message: ...; Question 433: Your database is running in ARCHIVELOG mode, and the databas...; Question 434: You are managing an Oracle 11g database with ASM storage, fo...; Question 435: You are managing an Oracle Database 11g database. You want t...; Question 436: In which cases is reference partitioning effective in enhanc...; Question 437: Which of these are valid Flashback Database recovery point p...; Question 438: Which of the following datatypes store time-zone information...; Question 439: If a backup set is expired, what can you do to correct the p...; Question 440: Which three actions are required to configure the Flashback ...; Question 441: Which two statements regarding a SQL profile are true? (Choo...; Question 442: The user SYS creates a job by using the following command: B...; Question 443: How many individual archive-log destination directories are ...; Question 444: View the Exhibit and examine the parameter settings in your ...; Question 445: Which of the following describes how a distributed resumable...; Question 446: You have created a script in the recovery catalog called bac...; Question 447: You have backed up your database using image copies. You hav...; Question 448: Which DBMS_SCHEDULER procedure(s) can be used to alter an ex...; Question 449: A developer calls and reports that he accidentally dropped a...; Question 450: Identify the activities performed as part of the Automatic S...; Question 451: What command would you issue to enable automated backups of ...; Question 452: Which of the following tasks is not performed by the job coo...; Question 453: While querying the EMPLOYEES table, you receive an ORA-01578...; Question 454: Which two statements are true about the compressed backups i...; Question 455: Which three tasks can be performed using a duplicate databas...; Question 456: You performed the RMAN database backup with the KEEP option....; Question 457: To view the results of a manual SQL Tuning Advisor task, whi...; Question 458: Your database is running in ARCHIVELOG mode. You are perform...; Question 459: You executed the following command to drop a user: DROP USER...; Question 460: What happens when you run the SQL Tuning Advisor with limite...; Question 461: What is the proper procedure to recover a lost tempfile?...; Question 462: You have lost datafile 4 from your database. Which is typica...; Question 463: You want to take a complete database backup using RMAN. The ...; Question 464: You issued the following command: CREATE GLOBAL TEMPORARY TA...; Question 465: View the Exhibit for some of the parameter settings. You sta...; Question 466: The SQL Tuning Advisor has been configured with default conf...; Question 467: You want the Automatic SQL Tuning process to stop accepting ...; Question 468: The ORACLE_SID environment variable is set to +ASM. ASMLIB i...; Question 469: You have discovered that one of three control files has been...; Question 470: Which of the following represents the correct way to perform...; Question 471: How many different calendars does Oracle 11g support?...; Question 472: Observe the structure of the table employees: The table cont...; Question 473: Which are the prerequisites for performing flashback transac...; Question 474: When tuning Automatic PGA Memory Management, which of the fo...; Question 475: What command is used to reset a database to a previous incar...; Question 476: You have the following requirements in relation to the detec...; Question 477: Examine the following scenario: - Database is running in ARC...; Question 478: To accomplish user-managed backup for the USERS tablespace, ...; Question 479: Which of these recommendations should be followed before cap...; Question 480: What command would you use to set a persistent setting in RM...; Question 481: Evaluate the following command: SQL> CREATE TABLE design_...; Question 482: Which of the following is not a valid setting for the PROGRA...; Question 483: In your database, the RESULT_CACHE_MODE parameter has been s...; Question 484: You want to schedule a job to rebuild all indexes on the SAL...; Question 485: Immediately after adding a new disk to or removing an existi...; Question 486: Which two are the uses of the ASM metadata backup and restor...; Question 487: You have lost all your RMAN backup set pieces due to a disk ...; Question 488: The database Is configured in ARCHIVELOG mode. The database ...; Question 489: Compressed backups work with which of the following commands...; Question 490: You execute the following FLASHBACK TABLE command: SQL> F...; Question 491: View the Exhibit to observe the error. You receive this erro...; Question 492: To enable faster incremental backups, you enabled block chan...; Question 493: Which of the following best describes a full backup?...; Question 494: For which two situations would you use functionality provide...; Question 495: View the Exhibit for some of the current parameter settings....; Question 496: Which statement is true about a Scheduler-generated event?...; Question 497: Which of the following are correct about block media recover...; Question 498: Which command will result in a trace file being created with...; Question 499: RMAN provides more granular catalog security through which f...; Question 500: To view the results of the most recent Automatic SQL Tuning ...; Question 501: As the DBA, you run the following query on your ASM instance...; Question 502: An online tablespace, TEST_TBS, is full and you realize that...; Question 503: Your ARCHIVELOG mode database has lost three datafiles and s...; Question 504: You perform the following activities during the database upg...; Question 505: Which statement about Automatic Memory Management with Oracl...; Question 506: What does it mean if a backup is expired?...; Question 507: Which two statements are true regarding the starting of the ...; Question 508: When performing a database duplication, which duplicate data...; Question 509: Which two statements are true about a job chain? (Choose two...; Question 510: Which of the following supplied functions is used to identif...; Question 511: Examine the following command used to perform incremental le...; Question 512: When executing a SQL workload, you choose to generate execut...; Question 513: You are using Recovery Manager (RMAN) for backup and recover...; Question 514: Which two changes and their effect on the system can be test...; Question 515: You have control-file autobackups enabled. When starting you...; Question 516: Which tasks can be accomplished using the Enterprise Manager...; Question 517: View the Exhibit and examine the resource consumption detail...; Question 518: View the Exhibit and examine the output. Which statement can...; Question 519: You have three temporary tablespace groups named G1, G2, and...; Question 520: The RECYCLEBIN parameter is set to ON for your database. You...; Question 521: View the Exhibit to examine the metrics with a threshold. Wh...; Question 522: Which backup option defines a user-defined name for a backup...; Question 523: You want to take the backup of the USERS tablespace. It has ...; Question 524: You plan to control the sessions performing a huge number of...; Question 525: You performed the RMAN database backup having a backupset ke...; Question 526: Which statement describes the effect of table redefinition o...; Question 527: Note the following parameter settings: Which setting is NOT ...; Question 528: Which is the correct way to connect to both the target datab...; Question 529: You enabled Flashback Data Archive on the INVENTORY table. W...; Question 530: Which two statements are correct about database transportati...; Question 531: Which three elements can a job chain process involve? (Choos...; Question 532: A user performs an update on a table. Shortly after committi...; Question 533: View the Exhibit that sets the threshold for the Current Ope...; Question 534: Your developers have asked you to restore the development da...; Question 535: If a log file becomes corrupted, it may cause the database t...; Question 536: What is the proper command to shut down the database in a co...; Question 537: Which of these components correctly identify the unique valu...; Question 538: If you use ALTER DISKGROUP ... ADD DISK and specify a wildca...; Question 539: Which of the following identifies and creates an index to mi...; Question 540: In what view are you likely to see the following output? (Ex...; Question 541: Which two statements are true about an image copy backup? (C...; Question 542: You executed the following command in Recovery Manager (RMAN...; Question 543: What are three benefits of using ASM? (Choose three.)...; Question 544: Which type of database file is spread across all disks in a ...; Question 545: Using Oracle Enterprise Manager to set SGA pool values manua...; Question 546: Which pseudocolumn could you use to identify a unique row in...; Question 547: Examine the following PL/SQL block: (Exhibit) Which statemen...; Question 548: You are maintaining the SALES database. You have added a new...; Question 549: Which is NOT a valid way of backing up a control file?...; Question 550: Which operation requires that you create an auxiliary instan...; Question 551: Which type of backup contains only the blocks that have chan...; Question 552: Which of the following commands will perform an active datab...; Question 553: The database is configured in ARCHIVELOG mode and regular co...; Question 554: You are working on the APPDB database as a DBA. The database...; Question 555: Which statements describe the capabilities of the DBMS_NETWO...; Question 556: You want to perform the following operations for the DATA AS...; Question 557: The following command is executed to create the baseline tem...; Question 558: Which type of backup backs up only data blocks modified sinc...; Question 559: What is the impact of the following backup if it exceeds the...; Question 560: View the Exhibit and note the contents of V$DIAG_INFO. Which...; Question 561: You are managing an Oracle Database 11g database with the AS...; Question 562: A PL/SQL procedure queries only those columns of a redefined...; Question 563: What two statements are true regarding the recommendations r...; Question 564: Note the following statements that use flashback technology:...; Question 565: What are the prerequisites for performing flashback transact...; Question 566: Which of the following restrictions are NOT true with respec...; Question 567: You configured the default backup device type as disk for RM...; Question 568: You want to enable automatic PGA memory management in your d...; Question 569: You are performing incomplete recovery using RMAN. You execu...; Question 570: Which option is best practice for creating a recovery catalo...; Question 571: Which command is used to begin a tablespace point-in-time re...; Question 572: You have a database with the following tablespaces: SYSTEM, ...; Question 573: Over the course of a day, a department performed multiple DM...; Question 574: How would you grant the RVPC user access to specific RMAN da...; Question 575: What does the DB_FLASHBACK_RETENTION_TARGET parameter config...; Question 576: Which three are the valid statements in relation to SQL plan...; Question 577: If a job references a schedule that has been disabled, what ...; Question 578: A database is running in ARCHIVELOG mode and regular backups...; Question 579: You want to migrate your database to ASM, so you have done a...; Question 580: To set the history retention period for either window loggin...; Question 581: When setting up the Flashback Data Archive, which of these k...; Question 582: Which of the following Scheduler elements encourage object r...; Question 583: A schedule defined entirely within the confines of a Schedul...; Question 584: What is the impact of the results of the output of the follo...; Question 585: Which of the following can be used in conjunction with a Fla...; Question 586: The Automatic Database Diagnostic Monitor (ADDM) analysis ru...; Question 587: View the Exhibit and examine the data manipulation language ...; Question 588: You want to take the backup of the USERS tablespace. It has ...; Question 589: Note the following parameters settings in your database: (Ex...; Question 590: You work in a data warehouse environment that involves the e...; Question 591: View the Exhibit and examine the disk groups created at the ...; Question 592: What is the name of the file that identifies the set of avai...; Question 593: You work with a newly created database. Presently, there is ...; Question 594: You are using the control file to maintain information about...; Question 595: You execute the following command to set the redundancy rete...; Question 596: Which statement describes the significance of the CHANGE FAI...; Question 597: You executed the following commands in a database session: (...; Question 598: View the Exhibit to examine the error during the database st...; Question 599: Your database is running in ARCHIVELOG mode. One of the data...; Question 600: View the Exhibit to examine the error while executing the RE...; Question 601: Your database is in NOARCHIVELOG mode. You start to do a bac...; Question 602: What is the effect of increasing the value of the ASM_POWER_...; Question 603: Which of the following statements is true regarding the init...; Question 604: The BOOKINGS table contains online booking information. When...; Question 605: While Monitoring the space usage in your database that is in...; Question 606: In your production database, users report that they are unab...; Question 607: In your database, the flash recovery area (FRA) is configure...; Question 608: Which of the following is not a valid calendaring syntax ele...; Question 609: Which two prerequisites are needed for performing workload c...; Question 610: You create a new Automatic Database Diagnostic Monitor (ADDM...; Question 611: What does the output on this report indicate? (Exhibit)...; Question 612: What will be the result of the following configuration? Log_...; Question 613: If two windows overlap, which window attribute will determin...; Question 614: The database users regularly complain about the difficulty i...; Question 615: You discover that your Recycle Bin contains two tables with ...; Question 616: The Database Resource Manager is automatically enabled in th...; Question 617: When exporting metadata for the transportable tablespaces, w...; Question 618: What methods are available to recover lost control files? (C...; Question 619: You want to create the Recovery Manager (RMAN) Virtual Priva...; Question 620: Your system has been upgraded from Oracle Database 10g to Or...; Question 621: What is the purpose of the recover command? (Choose all that...; Question 622: What view would you use to determine if a given tablespace i...; Question 623: You have enabled resumable space allocation in your database...; Question 624: The NLS_LANGUAGE parameter specifies the default conventions...; Question 625: If you lost your entire database, including the database spf...; Question 626: What is the purpose of the RMAN recovery catalog? (Choose al...; Question 627: While tuning a SQL statement, the SQL Tuning Advisor finds a...; Question 628: You plan to collect the Automatic Workload Repository (AWR) ...; Question 629: When setting arguments for a job, which procedure do you use...; Question 630: What feature comes into play to help ensure the completion o...; Question 631: Which two statements are true with respect to the maintenanc...; Question 632: Within a resource-plan definition, what differentiates a top...; Question 633: Examine the section of the Health Check report given below: ...; Question 634: After you have restored and recovered a database to a new ho...; Question 635: You are peer reviewing a fellow DBAs backup plan for his NOA...; Question 636: Which three statements correctly describe the features of th...; Question 637: Which is true concerning Database Replay in an Oracle Real A...; Question 638: Evaluate the following command and its output: SQL>SELECT...; Question 639: Tape streaming is not happening while performing RMAN tape b...; Question 640: What is the purpose of the list expired backup command?...; Question 641: Automatic data conversion will occur if which of the followi...; Question 642: You are tuning RMAN to optimize performance. You want tape I...; Question 643: Given two different character sets (A and B), which of the f...; Question 644: What is the purpose of the catalog command?...; Question 645: True or false: RMAN offers the equivalent of the SQL command...; Question 646: Which of the following advisors is run in every maintenance ...; Question 647: Which three statements about performance analysis by SQL Per...; Question 648: Identity two advantages of using a recovery catalog in-load ...; Question 649: Which three functions are performed by the SQL Tuning Adviso...; Question 650: Examine the following RMAN command: BACKUP DATABASE TAG TEST...; Question 651: Your database has experienced a loss of datafile users_01.db...; Question 652: Which tasks are run automatically as part of the Automated M...; Question 653: What is the default value for the ENABLED attribute of a job...; Question 654: Which of the following is a valid way of putting a tablespac...; Question 655: You want to convert your existing non-ASM files to ASM files...; Question 656: You execute the following Recovery Manager (RMAN) commands i...; Question 657: Which of the following is true about job chains?...; Question 658: Which of the following files cannot be backed up by RMAN? (C...; Question 659: You opened the encryption wallet and then issued the followi...; Question 660: Which two initialization parameters would you set to enable ...; Question 661: You have enabled backup optimization for the RMAN environmen...; Question 662: Which statement most accurately describes the implementation...; Question 663: Which of these formats represents the correct hierarchy for ...; Question 664: Examine the following RMAN command: RMAN> CONFIGURE ENCRY...; Question 665: Which steps are mandatory to enable Direct NFS? 1. Mount all...; Question 666: You want to track and store all transactional changes to a t...; Question 667: You executed the following commands in a database session: (...; Question 668: What is the danger associated with stopping a running job by...; Question 669: Which two statements are true regarding the SQL Repair Advis...; Question 670: You are in the process of creating a virtual private catalog...; Question 671: Examine the exhibit to view the parameters set in your param...; Question 672: Which of the following objects can be directly referenced by...; Question 673: Which RMAN backup command is used to create the block-change...; Question 674: You have a very large table that your users access frequentl...; Question 675: You issue the following RMAN command to set a retention poli...; Question 676: Which three statements must be true before transporting a ta...; Question 677: To generate recommendations to improve the performance of a ...; Question 678: You are managing an Oracle Database 11g ASM instance with a ...; Question 679: Given the following steps, which would be the correct order ...; Question 680: In which situations will the ASM metadata backup help you re...; Question 681: View the Exhibit and examine the steps that you executed to ...; Question 682: Evaluate the following command: SQL>ALTER SYSTEM SET db_s...; Question 683: Your database initialization parameter file has the followin...; Question 684: View the Exhibit and examine the output. (Exhibit) You execu...; Question 685: ENCRYPT_TS is an encrypted tablespace that contains tables w...; Question 686: Which three types of files can be automatically placed in th...; Question 687: Examine the following values of the initialization parameter...; Question 688: How long will this backup be allowed to run? Backup as compr...; Question 689: NLS parameters can be set using the five methods listed. Put...; Question 690: View the Exhibit and examine the output of the query in diff...; Question 691: Why should you back up a duplicated tablespace after a TSPIT...; Question 692: View the Exhibit to examine a portion of the output from the...; Question 693: Archived redo logs can be copied to more than one destinatio...; Question 694: What are the two different types of database duplication? (C...; Question 695: You have lost all your online redo logs. As a result, your d...; Question 696: Consider the following command: backup database plus archive...; Question 697: View the Exhibit and note the contents of V$DIAG_INFO. Which...; Question 698: Which files are required for a full recovery of the database...; Question 699: To enable resumable space allocation for the instance, which...; Question 700: What are the recommendations for Oracle Database 11g install...

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