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Dynamic Sampling of query results

Posted on Oct 08, 2010 at 02:26 PM 27 Views

Is there a way to implement dynamic sampling of expected result set in a way that we could invoke as a percentage of expected

results?

We are using Web Intelligence XIR3SP2.

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    author's profile photo Former Member
    Former Member
    Posted on Oct 09, 2010 at 12:49 AM
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    Sampling is a built-in feature of XI 3.1. It occurs on the database server so the report server doesn't have to bear the load. If you build a query and then click the Properties tab on the top-left of the query panel, the properties includes a sample size.

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    • Former Member Kuldeep Chitrakar
      Oct 09, 2010 at 12:36 PM

      I have tested Oracle only. Teradata has a "sample" command and I would hope that Web Intelligence would use that. The Oracle method involves the dbms_random package to assign each row a random number, then the query is sorted by that number and a limit is placed for the sample size.

      I have not written about this on my blog yet, but it could be an interesting topic. Thanks for the suggestion.

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  • author's profile photo Former Member
    Former Member
    Posted on Oct 08, 2010 at 02:52 PM
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    Less info, you have to elobarate the req.

    Thank You!!

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