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How to load Oracle's lob type into HANA

Hi experts,

we're dealing with large volume of oracle's lob type(CLOB&BLOB) data,we need to load the lobs into HANA,questions are:

1.Does Hana's import command support lob data?

2.The tools of export oracle's lob data.

3.Does Hana support lob column's compress,if so,how about the compress ratio.

Thanks a lot.

Kelvin

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  • Posted on Dec 13, 2014 at 12:56 PM

    Hi Kelvin,

    how about you check the documentation first?

    LOB datatypes are explained in the documentation.

    In order to get from Oracle to SAP HANA, one of the most convenient options is to use SAP DataServices.

    LOB compression/de-duplication is currently not available (and honestly it's not the most prominent feature on any DBMS as it stems back to the days of database-as-a-filesystem approaches).

    - Lars

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    • And what do you do with those pictures then? And how large are those?

      From what you described up to here, it seems to be a rather simple use case for LOB data (store & retrieve). If you don't do anything more challenging with the LOB contents you can do this with SAP HANA easily.

      Clearly you have some opinion on DataServices - although I don't see why you doubt the performance of this solution. It's one of the easiest ways to run the loading in parallel.

      Anyhow, good luck with your further efforts.

      - Lars

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