Doubt on the need of partitioning
Hello Team
I know that when the no of records in a table exceeds 2 billion then we need to go with partitioning . But we replicate tables from SAP ECC into our HANA system So we don't create tables . so at what step this partitioning needs to be done . At the time of replication or after that because what i saw is that partitioning is being done with create statements but since the tables are already coming from SAP ECC when we do this partitioning .
Regards
Hi Prag,
> At the time of replication or after that because what i saw is that partitioning is being done with create statements but since the tables are already coming from SAP ECC when we do this partitioning .
You can also partition tables using "ALTER TABLE". Please have a look at ALTER TABLE - SAP HANA SQL and System Views Reference - SAP Library
Best regards,
Wenjun
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ps: Consider Oracle releases 10g onwards.
Edited by: Aniruddh on Dec 30, 2009 9:46 AM
Edited by: Aniruddh on Dec 30, 2009 9:50 AMAniruddh,
>
What are the important considerations that one needs to keep in mind while creating the huge number of partitions for a table?
>
I doubt if you are using partitioning for the right causes. Please explain how is your data structured and why you need to create so many partitions..?
when creating partition, you need to consider..
a) why you need to partition?
b) how is your data structured
c) how your data is indexed.
d) What kind of queries would you firing on this table to get the data. Will they use the partition key ?
Thanks,
Rajesh.
Please mark this/any other answer as helpful or answered if it is so. If not, provide additional details/feedback.
Always try to provide create table and insert statements to help the forum members help you better. -
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here my question is how to delete the data from partition table.
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Sree874823 wrote:
delete from table1 partition (P_2008_1212)This approach is wrong - as Andre pointed, this is not how partition tables should be used.
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I don't want to do FILE recovery.
Thanks for any help.
The links in this post are to pages describing the underlined term, e.g. the man pages for df and gpt.
dd output includes:
Filesystem
512-blocks
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Any need to partition hard drives for FCS or CS4 on my new Mac Pro?
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Hope that helps -
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