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Dynamics 365 Community / Forums / Microsoft Dynamics GP (Archived) / Missing clustered inde...
Microsoft Dynamics GP (Archived)

Missing clustered indexes?

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Posted on by bitshift 860

In the SQL database for GP, it seems there are several large tables that have an identity column, yet no clustered index.  Is this by design, or something that is just left up to the admin to create?

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  • bitshift Profile Picture
    bitshift 860 on at

    Well, this helped answer a bit.

    www.simple-talk.com/.../should-you-always-use-a-clustered-index

    The key here is that a table with a clustered indexes AND non-clustered indexes, a given query will work differently than having only non-clustered indexes.  

    With non-clustered and no clustered - the non-clustered indexes have pointers directly to the rows on disk, where as if there is a clustered index, the pointers in the non-clustered index point to locations in the clustered index...which then point to the rows on disk.  

    Clear as mud ?  :)

  • Jonathan Fear Profile Picture
    Jonathan Fear on at

    There is no need to add custom indexes most of the time as GP already has these created. Could you give an example of a table you are wondering about?

  • Suggested answer
    Community Member Profile Picture
    Community Member on at

    Hi,

    Clustered indexes are used for specific tables in GP. you can refer the GP architecture document link related to clustered indexes in page 7

    www.google.co.in/url

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