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Editorial Team
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Asked: 2026-05-15T21:24:47+00:00

I’m trying to fix a bug with a site search function and have isolated

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I’m trying to fix a bug with a site search function and have isolated it down to an issue with the FREETEXTTABLE function.

I have a the following query:

SELECT * FROM dbo.SiteContentForSearch INNER JOIN FREETEXTTABLE(SiteContentForSearch, sSearchText, 'NFC' ) AS SearchResultTable 


ON dbo.SiteContentForSearch.liSearchID = SearchResultTable.[Key]

This is returning a rank of more than 0 for many of the rows which have ‘NFC’ present in the sSearchText column. However there is (at least) one row which it is returning a rank of o. It has the following text which as you can see contains NFC present a couple of times. Any idea’s?

Payments and Ticketing Contactless
smart cardsContactless smart card
technology is being employed
successfully in many areas. For
instance:Retailers are using
contactless smart card payments to
increase basket size and cut
queuesTransport operators are using
contactless smart cards (ITSO, Oyster
etc) to streamline backend processes
and improve the customer
experienceEvent and venue operators
are using RFID wristbands and
bracelets for effective and secure
ticketing and access controlNear field
communication (NFC) and mobile
paymentsWhen it comes to driving the
market for mobile payments and
ticketing, mobile phone technology
near field communications (NFC) could
be the answer. And as NFC does not
need special point-of-sale contactless
readers, NFC can be seamlessly
integrated with the existing
contactless infrastructure. But with
mass market adoption a few years away,
what should you do now?Working with
contactless smart cards, NFC and
mobile paymentsWe have been helping
clients improve their customers’
experience using RFID and mobile phone
technologies for a long time. As a
result, we can integrate all major
payment schemes. We can help
you:Understand your customers’ user
journey to get the core applications
right such as payments and
ticketingInnovate, for instance using
RFID tags or NFC with digital signage
to personalise real-time customer
offersBuild and test NFC applications
within our NFC framework

Cheers

Steve

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1 Answer

  1. Editorial Team

    I’m currently having some FreeTextTable issues myself and the marked answer to this question:

    Why or How does FREETEXTTABLE give a rank value higher then others

    which contains this link

    http://msdn.microsoft.com/en-us/library/ms345119%28SQL.90%29.aspx

    explains how the FreeTextTable does its thing in maths. Particularly with reference to the OKAPI BM25 ranking formula.

    Underneath the maths part is a section on issues with the ranking formula. Obviously its been 16 months since you asked this question but maybe this answer will help someone else with a similar problem. If you step through the problems and meta-problems with implementing the alogrithm you’ll probably see where it could possibly be falling over.

    HTH (someone…)

    EDIT: Also the answer to this question:

    FREETEXTTABLE always has a rank of 0

    includes this link

    http://msdn.microsoft.com/en-us/library/ms142524.aspx

    Which is a more approachable summary of the info about how the ranking formula works that is contained in the previous link.

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