Does the data pump of the 10G database support incremental export and import?

Updated on technology 2024-03-30
8 answers
  1. Anonymous users2024-02-07

    If you are satisfied, please click [Answer] on the right, if you still have questions, please click [Follow-up].

    Hope mine is helpful to you, hope!

    o(∩_o~

  2. Anonymous users2024-02-06

    The difference between data pump export and import and traditional export and import: Before 10G, the traditional export and import used the EXP tool and IMP tool respectively, starting from 10G, not only the original EXP and IMP tools are retained, but also the data pump export and import tools EXDP and IMDPThings to keep in mind when using expdp and impdp; EXP and IMP are client segment utilities that can be used both on the client side and on the server segment.

    ExPD and IMDP are server-side utilities, they can only be used on the Oracle server, not on the client IMP is only applicable to exp export files, not to expdp export files; impdp only applies to expdp export files, not exp export files.

  3. Anonymous users2024-02-05

    Very clever database design ideas! It can really be said: there is no one before, and there is no one after. Float by

  4. Anonymous users2024-02-04

    Open Run DU in the Start BAI menu

    After opening, in the run box

    Enter cmd and click OK.

    Run to DAO to order back the order:

    sqlplus system password.

    2 Create a data export answer directory expnc dir as the directory name'e:cdatabak'For the actual directory of the database, the command is as follows:

    create directory expnc_dir as 'e:cdatabak';

    To grant the Oracle user access to the Data Catalog, run the following command:

    grant read,write on directory expnc_dir to dxzyjt;

    6. Execute the data pumping command, note that it must be executed under cmd, and cannot be executed after logging in to sqlplus.

    expdp dxzyjt/dxzyjt@ncdata_ directory=expnc_dir dumpfile= schemas=dxzyjt logfile=;

    The backup interface is as follows:

  5. Anonymous users2024-02-03

    Look at the amount of data.

    1.If the data exceeds 10w. Just add a marker. to determine whether it has been transmitted.

    For example, if you add a trans flag column, 0 means no change, 1 means insert, and 2 means update

    2.If it doesn't exceed 10W....Then use merge....into...Statement of it. For specific usage, please refer to it.

  6. Anonymous users2024-02-02

    No, exp can only be imported with imp, and expdp can only be imported with impdp.

  7. Anonymous users2024-02-01

    No, the internal processing mechanism of the two is different.

  8. Anonymous users2024-01-31

    If you don't need a user, you can specify it at the time of import.

    fromuser=...touser=...

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