Online Access Free Oracle.1z0-063.v2022-02-06.q218 Practice Test (Page 45)

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Oracle.1z0-063.v2022-02-06.q218 Practice Test (Page 45)

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1z0-063 Exam Question 216

Which two statements are true about Flashback Version Query? (Choose two.)

A.The result of a query can be used as part of a DML statement.

B.It can be used to retrieve the SQL that is required to undo a row change and the user responsible for
the change.

C.It can be used only if Flashback Data Archive is enabled for a table.

D.It retrieves all versions of rows that exist in a time interval, including the start time and end time.

E.It can be used to create views.

Correct Answer: B,D

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1z0-063 Exam Question 217

Your multitenant container database (CDB) CDB1 that is running in ARCHIVELOG mode contains two pluggable databases (PDBs), PDB2_1 and PDB2_2, both of which are open. RMAN is connected to the target pluggable database PDB2_1.
RMAN> BACKUP DATABASE PLUS ARCHIVELOG DELETE INPUT;
Which statement is true about the execution of this command to back up the database?

A.All data files belonging to PDB2_1 are backed up along with the archive log files.

B.Only the data files belonging to pdb2_1 are backed up.

C.All data files belonging to PDB2_1 are backed up and all archive log files are deleted.

D.This command gives an error because archive log files can be backed up only when RMAN is connected to the root container database.

Correct Answer: A

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1z0-063 Exam Question 218

Which three statements are true regarding the use of the Database Migration Assistant for Unicode (DMU)?
(Choose three.)

A.A DBA can check specific tables with the DMU

B.The database to be migrated must be opened read-only.

C.The release of the database to be converted can be any release since 9.2.0.8.

D.The DMU can report columns that are too long in the converted characterset

E.The DMU can report columns that are not represented in the converted characterset

Correct Answer: A,D,E

A: In certain situations, you may want to exclude selected columns or tables from scanning or conversion steps of the migration process.
D: Exceed column limit
The cell data will not fit into a column after conversion.
E: Need conversion
The cell data needs to be converted, because its binary representation in the target character set is different than the representation in the current character set, but neither length limit issues nor invalid representation issues have been found.

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