Clustering and Partitioning

Hello SDN Friends,
Can both clustering and partioning possible together.

Hi,
Clustering is only supported by the database platform DB2 for Linux, UNIX, and Windows.
You can use partitioning to improve the performance of other databases.
http://help.sap.com/saphelp_nw2004s/helpdata/en/33/dc2038aa3bcd23e10000009b38f8cf/frameset.htm
Thanks & Best Regards,
Rajani

Similar Messages

  • What are differences between clustering and partitioning?

    Thank you for reading my post
    Can some one let me know what is different between clustering and partitioning?
    What i think is as follow:
    In clustering we have one storage (one hard disk for example) and several instances which use that storage to server the applications
    in partitioning, we have multiple instances and each of them has its own storage (hard disk) but all of these instances and hard disks serve one application.

    The word "cluster" has different meanings in Oracle.
    Another kind of cluster is a database object where
    master and detail rows are stored together in the
    same block. Table joins are very efficient, but
    reading data from one table and not another tends to
    take longer. These kinds of clusters are vary rarely
    used.Do not forget single table sorted hash cluster!

  • Clustering and partioning

    Hi,
    Can anyone please say What is the difference between clustering and partioning?.
    What is mean by Hash Partioning ? I know it is done by hash value.How we will get the hash value?
    Bit confusing to do self- study. It would be great if someone explains to me.
    Thanks

    Hi,
    Clusters are two or more tables that are physically stored together to take advantage of similar columns between the tables. If two tables have an identical column and you frequently need to join the two tables, for example, it is advantageous to store the common column values in the same data
    block. The goal is to reduce disk I/O and thereby increase access speed when you join related tables.
    However, clusters will reduce the performance of your INSERT statements, because more blocks are needed to store the data of multiple tables.
    Oracle partitions addresses the key problem of supporting very large tables and indexes by allowing you to decompose them into smaller and more manageable pieces called partitions.
    Once partitions are defined, SQL statements can access and manipulate the partitions rather than entire tables or indexes.
    Partitions are especially useful in data warehouse applications, which commonly store and analyze large amounts of historical data
    Hash partitioning is a partitioning technique where a hash key is used to distribute rows evenly across the different partitions (sub-tables). This is typically used where ranges aren't appropriate, i.e. employee number, productID, etc.
    see this link
    http://download.oracle.com/docs/cd/B19306_01/server.102/b14231/general.htm#i1006095
    :)

  • Use the default format and partition step to format disk0 partition 1 in multiple disks sutiation

    As we know,we need to disable the default format and partition step in ts to let mdt deploy os on C and leave the other partitions stay safe when there is only one disk on pc，and the way of installing operation system is logical drive letter store in a varible.
    But what if there are 2 disks on pc，and for a record the disk 0 is always the OS disk,don't need to confirmed this.How can we modify the format and partition step to format only C on disk0 under this condition?then lead the mdt to do the rest deployment
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    Thanks

    You are pushing up against the design limits of MDT, and the more complex and/or arbitrary the disk configuration the harder it is for MDT to perform installations.
    If you want to maintain the *existing* disk configuration, and just update the OS present, then the recommended course of action is to run MDT from *within* the OS (cscript.exe
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    http://DeploymentLive.com

  • How to Create a Table with Merge and partitions in HANA

    Hi,
    What is the best way to create a Table with MERGE and PARTITION and UNLOAD PRIORITIES.
    Any body can you please give me some examples.
    Regards,
    Deva

    Ok,
    1) the UNLOAD PRIORITY has nothing to do with the order of data loads in your ETL process
    2) Unloading of columns will happen automatically. Don't specify anything specific for the tables, then SAP HANA will take care about it
    3) Not sure where you get your ideas from, but there is no need to manually "flush" tables or anything like that. SAP HANA will take care of memory housekeeping.
    4) Partitioning and how to specify it for tables has been largely documented. Just read up on it.
    5) Delta Merge will happen automatically, as long as you don't prevent it (e.g. by trying to outsmart the mergedog rules)
    Seriously, I get the impressions that this list of requirements is based on some hear-say and lack of actual information and experience with SAP HANA. There are a couple of extensive discussions on data loading optimization available here in SCN and on SAPHANA.COM. Please read those first.
    All this had been discussed broadly a couple of times.
    - Lars

  • Task Sequence Windows Server 2012 format and partition issue when using MDT2012

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    select partition 1
    assign
    select disk 2
    select partition 1
    assign
    select disk 3
    select partition 1
    assign
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  • Materialized view and Partition

    Hi,
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       CALLID              VARCHAR2 (20),
       CD                  VARCHAR2 (25),
       CG                  VARCHAR2 (25),
       RE                  VARCHAR2 (25),
       OPC                 VARCHAR2 (12),
       DPC                 VARCHAR2 (12),
       STIME               VARCHAR2 (25),
       SDATE               DATE,
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       ETIME               VARCHAR2 (25),
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       ported              VARCHAR2 (30),
       jurisdiction_Info   VARCHAR2 (30),
       origLine_Info       CHAR (1),
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    );Mview definition
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      PARTITION LIVE_CDR_MV_JAN_2009 VALUES LESS THAN (TO_DATE('20090201',
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        LOGGING
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      PARTITION LIVE_CDR_MV_FEB_2009 VALUES LESS THAN (TO_DATE('20090301',
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        LOGGING
        NOCOMPRESS
    BUILD IMMEDIATE
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    NEXT SYSDATE  + 2 /24
    AS
    SELECT   DISTINCT (ic.callid) callid,
                      ic.CG,
                      ic.CD,
                      ic.RE,
                      ic.OPC,
                      ic.DPC,
                      ic.SDATE,
                      ic.STIME,
                      ac.ADATE,
                      ac.ATIME,
                      ec.ETIME,
                      ec.EDATE,
                      ec.STATUS
      FROM   live_cdr ic, live_cdr ac, live_cdr ec
    WHERE       ic.callid = ac.callid
             AND ic.callid = ec.callid
             AND ic.stime = ac.stime
             AND ic.stime = ec.stime
             AND ic.sdate = ac.sdate
             AND ic.sdate = ec.sdate
             AND ac.ADATE IS NOT NULL
             AND ec.EDATe IS NOT NULL
             AND ec.etime IS NOT NULL
             AND ic.CD IS NOT NULL
             AND ic.cg IS NOT NULL;Regards

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