Search Using The CONTAINS Predicate

Jun 27, 2006

Hi everybody,

I have a problem using the CONTAINS predicate. I use the contains
predicate in a web page that students utilize to look for dissertations
stored in a database (MS 2000) of the library. The search  is one
big textbox where students can perform any type of reaserch. For
instance, they can insert the author, the title or few keywords of a
dissertation. After they have clicked on the button Submit, the words
that they have inserted are filtered and combined  (with AND) in
one string:

Example: miami, education --> 'Miami AND Education'



An example of the query that I need to perfrom is the Query Number 1:



select docnumber,Title



FROM [Log].[dbo].[DocTable1]



where contains(SearchColumn,'miami AND education') order by docnumber



SearchColumn is a field (varchar) that is the concatenation of various
fields such as Location, Title, Author, etc... that are contained in
the same table (See below for the description of the Table DocTable1).



 I'm currently testing the search and I have figured out that the query described above does not work.

For example, the query should produce the same resultsof the following one, but it does not:



select docnumber

FROM [Log].[dbo].[DocTable1]

where contains(Location,'miami') AND

contains(Keywords,'education') order by docnumber



I need to implement the first query, but i can not understand why it
does not produce the same results of the second one. Any Ideas?



Thanks,

Christian



--------------------------------------------------------------

CREATE TABLE [DocTable1] (

    [DocNumber] [int] NOT NULL ,

    [LastName] [varchar] (30) COLLATE SQL_Latin1_General_CP1_CI_AS NULL ,

    [FirstName] [varchar] (30) COLLATE SQL_Latin1_General_CP1_CI_AS NULL ,

    [Program] [varchar] (10) COLLATE SQL_Latin1_General_CP1_CI_AS NULL ,

    [Paper] [varchar] (30) COLLATE SQL_Latin1_General_CP1_CI_AS NULL ,

    [Location] [varchar] (50) COLLATE SQL_Latin1_General_CP1_CI_AS NULL ,

    [ANNO] [int] NULL ,

    [Title] [varchar] (350) COLLATE SQL_Latin1_General_CP1_CI_AS NULL ,

    [TitleSort] [varchar] (350) COLLATE SQL_Latin1_General_CP1_CI_AS NULL ,

    [Keywords] [varchar] (350) COLLATE SQL_Latin1_General_CP1_CI_AS NULL ,

    [FT] [char] (1) COLLATE SQL_Latin1_General_CP1_CI_AS NULL ,

    [URL] [varchar] (100) COLLATE SQL_Latin1_General_CP1_CI_AS NULL ,

    [SearchColumn] [varchar] (900) COLLATE SQL_Latin1_General_CP1_CI_AS NULL ,

    CONSTRAINT [PK_DocTable1] PRIMARY KEY  CLUSTERED

    (

        [DocNumber]

    )  ON [PRIMARY] ,

    CONSTRAINT [Title_Author_DocTable1] UNIQUE  NONCLUSTERED

    (

        [Title],

        [LastName],

        [FirstName]

    )  ON [PRIMARY] ,

    CONSTRAINT [FT-Constraint] CHECK  NOT FOR REPLICATION ([FT] = 'Y' or [FT] = 'N')

) ON [PRIMARY]

GO

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Hi, I test the following sql statement, finding that an error ocurs:

Msg 7630, Level 15, State 2, Line 3
Syntax error near '"' in the full-text search condition '"dsg SDRGDG " OR "sdfsdfsdfsdafdsafdsfds'.

DECLARE @searchTerm NVARCHAR(40)
SET @searchTerm = '"dsg SDRGDG " OR "sdfsdfsdfsdafdsafdsfdsafdsafdsafsafdfdsafdf"';
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direction without causing you much work/time.


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2. Although it happens maybe 20-30 % of the time in production, I can€™t make it happen in

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SQL Server 2014 :: Semantic Search Not Finding Keywords Identified By Full-Text Search?

Nov 6, 2014

I have a scenario of where the standard Full-Text search identifies keywords but Semantic Search does not recognize them as keywords. I'm hoping to understand why Semantic Search might not recognize them. The context this is being used in medical terminology and the specific key words I noticed missing right off the bat were medications.

For instance, if I put the following string into a FT indexed table

'J9355 - Trastuzumab (Herceptin)'
AND
'J9355 - Trastuzumab emtansine'

The Semantic Search recognized 'Herceptin' and 'Emtansine' but not 'Trastuzumab'

Nor in

'J8999 - Everolimus (Afinitor)'

It did not recognize 'Afinitor' as a keyword.

In all cases the Base of Full-Text did find those keywords and were identifiable using the dmvsys.dm_fts_index_keywords_by_document.It does show the index as having completed.

why certain words might not be picked up while others would be? Could it be a language/dictionary issue? I am using English and accent insensitive settings?

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