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1z0-083 Exam - Question 66


Which two are true about data movement between a non-CDB and a PDB using Data Pump? (Choose two.)

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Correct Answer: ADE

Tablespaces are automatically created as needed while importing full exports in either a non-CDB or a PDB. Additionally, Oracle attempts to convert common users to conventional users when moving schemas from a PDB to a non-CDB. This is because, during the full import process, tablespaces can be created automatically using parameters like REMAP_DATAFILE and REUSE_DATAFILES. Furthermore, when moving schemas from a PDB to a non-CDB, Oracle attempts to convert common users to conventional users, although this attempt might sometimes fail if specific conditions are not met.

Discussion

17 comments
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ald85Options: BD
Jun 17, 2020

BD E,F ->Incorrect -> tablespace export/import can be conventional or transportable A,C -> Nothing is created automatically you must create what you need.

veginhaOptions: AD
Jun 20, 2020

actually tablespaces can be created automatically with full exports, that's why parameters like REMAP_DATAFILE and REUSE_DATAFILES exist in impdp. (A) https://docs.oracle.com/cd/B28359_01/server.111/b28319/dp_import.htm#i1010424 I think that B is incorrect since a database user and a local user is like the same, so no conversion is necessary. And D seems to be correct since a common user must be converted, but it seems like always fails because of the "##" characters in the "create user c##common" command, so the REMAP_SCHEMA is needed. https://docs.oracle.com/en/database/oracle/oracle-database/19/multi/using-database-utilities-in-a-cdb.html#GUID-C1578FB6-216F-473E-A6D5-18453D4F9021 What do you think?

Antonio71
Jan 12, 2023

I think you are right, for me A D

ObserverPL
May 20, 2021

A seems to be correct, BUT it's about importing full exports - while you can import only PART (one schema, one table, ...) from full export and then tablespace is NOT created. Tablespace is created only if you perform FULL import of FULL export. So A is rather not ok. B is definitely correct. D is definitely correct too.

VinayakChandra
Jun 24, 2024

By Defualt, if you just run import (without specifying mode=tables/schemas/full etc) of a full export it will run a full import as full is the default mode for import

flaviogcmeloOptions: BD
Apr 28, 2022

I agree, B and D.

cerebro2000xOptions: AB
Aug 8, 2020

AB for me

janw
Aug 14, 2020

During the following import situations, Data Pump automatically creates the tablespaces into which the data will be imported: The import is being done in FULL or TRANSPORT_TABLESPACES mode The import is being done in table mode with TRANSPORTABLE=ALWAYS In all other cases, the tablespaces for the selected objects must already exist on the import database. You could also use the Import REMAP_TABLESPACE parameter to map the tablespace name to an existing tablespace on the import database.

janw
Aug 14, 2020

A only correct in case of full import, answer only talks about full export

janw
Aug 14, 2020

B seems correct D is correct as it says 'attempts'. It can generate an error, so it's an attempt...

SchmeiliOptions: BD
Nov 17, 2020

i also go with BD

Neil107Options: BD
Aug 8, 2021

I believe it's BD.

Bio12345Options: BD
Feb 26, 2022

BD as most agrees

you1234
Jun 20, 2020

ald85, looks like question is from non-CDB to pdb? i doubt on D answer ?

ald85
Jun 21, 2020

The question says "a non-CDB and a PDB" not sense is specified. it can be non-CBD to PDB or PDB to non-CBD. Which are the cases B and D.

proact
Oct 13, 2020

it saids between non-CDB and PDB.... so D is perfectly correct.

dieymirOptions: AD
Nov 26, 2020

A -> true, it's a full export D -> true, *attempts* to convert common users to conventional users (it'll fail)

Bio12345Options: BD
Feb 26, 2022

BD for the win!

momi0205Options: AB
Jul 12, 2022

I believe it's AB.

ScottLOptions: BD
May 2, 2023

B and D

_gio_Options: AD
Jun 12, 2023

ABD are all correct, I agree with veginha: answer B is tricky because no convertion is needed

gabskhOptions: AE
Nov 3, 2023

question is about data movement therefore correct answer is A and E

antonicaOptions: AB
Mar 29, 2024

D. Wrong ORA-65094:invalid local user or role name AB, is a better options, i think