Update and select ask when tablespace in backup mode

Hello

I have a question related to the DML statement when the tablespace is in backup mode. Suppose that when putting the tablespace in begin backup mode and then during user times run an update on this tablespace statement and validation of the transaction and any other user run the select query on the same data and image that will appear and where to display the data will be taken.

steps to follow:

alter tablespace users begin backup;

Update emp set sal = 4000 where empno = 101;
commit;
Select * from emp where empno = 101;

Now what result will appear and where data will get.

Thank you
Gulshan

Hello

alter tablespace users begin backup;

update emp set sal=4000 where empno=101;
commit;
select * from emp where empno=101;

As far as I KNOW, the database could function normally and you will not find the difference from the point of view of the transactions. If you check process and the Oracle architecture, bit blurry will be established towards the top and vectors to additional would be saved upward in the newspapers online redo - due to which size of redo would be higher than in normal operations. Second, you must be concerned about the backup - which may not be compatible. In order to better opt for RMAN instead of the user managed backups.

-Pavan Kumar N

Tags: Database

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      COUNT(*)
    
    ----------
    
         10000
    

    Thus, it does not matter what is the status of any tablespace: backup or no mode. Incomplete recovery using archivelogs + redologs.

  • Windows Update lost his place when internet is reconnected

    I would like to know why this happens, because my selected updates are unchecked.

    hostile,.
    If you mean that you open Windows Update and access the list of available updates and select some updates, and then you cancel the search and when you get back on the page, he came back to the default selections.  It is by design.  If you make selections and then start updates and lose internet connectivity, it will also default selections once you manage to reconnect.

    Mike - Engineer Support Microsoft Answers
    Visit our Microsoft answers feedback Forum and let us know what you think.

  • Can I plug in (food) a tablespace, RMAN backup in another DB?

    11.2.0.3/AIX 6.1

    We accidentally dropped a DB development without taking the last backup expdp of a basic scheme. All objects on this schema belong to the single tablespace and we have this tablespace RMAN backup. Is there anyway we could recreate this pattern by restoring the backup tablespace in a different database?

    Yes.

    Use the function/method of TRANSPORT TABLESPACE:

    http://Oracle.Su/docs/11g/backup.112/e10643/rcmsynta2021.htm

    See also sys.dbms_tts.transport_set_check

    RMAN> transport tablespace emp_data, emp_data2
               tablespace destination '/u01/app/oracle/oradata'
               auxiliary destination '/u04/app/oracle/oradata';
    

    If you need to check your endian use this query format:

    SELECT
      PLATFORM_NAME,
      ENDIAN_FORMAT
    FROM
      V$TRANSPORTABLE_PLATFORM;
    

    http://www.Fadalti.com/Oracle/database/how_to_transportable_tablespaces.htm

    http://husnusensoy.WordPress.com/2008/07/12/migrating-data-using-transportable-tablespacetts/

    Best regards

    mseberg

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