Understanding Full Text Search in SQL Server 2005
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by Uday Denduluri
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Architecture

Let us identify different components of Full text search before going ahead with understanding the architecture.

·         The Microsoft Full-Text Engine for SQL Server (MSFTESQL)

·         The Microsoft Full-Text Engine Filter Daemon (MSFTEFD) that comprises the following:

1.    Filter

2.    Protocol handler

3.    Word breaker

MSFTESQL is a windows service that is a tightly integrated component of SQL Server 2005 which is used as a search engine. This is built on the (MSSearch) technology. MSFTESQL service is mainly involved in providing three functionalities.

·         Implementing full-text catalogs and indexes for database

·         Querying the database with words, phrases and words in close proximity [meaning of a word]

·         Managing the full-text catalogs that are stored in SQL servers

MSSearch is a process in windows system that is responsible for doing the cataloguing and indexing. This file name is mssearch.exe. This process will be used by MSFTESQL service to implement the indexing and full-text catalogs.


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Title: feedback   
Name: Deepali
Date: 2012-06-18 10:56:55 AM
Comment:
really helpful
Title: Full text Catalog   
Name: Neetu
Date: 2012-04-05 3:50:28 AM
Comment:
The whole article is very helpful but I didn't understood the concept of full text catalog.
What is the use of it?
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Name: Bhinu Baba
Date: 2012-03-15 2:19:52 AM
Comment:
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Name: Prateek Gupta
Date: 2011-09-12 5:08:35 AM
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Date: 2011-01-18 8:29:44 AM
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Title: feed back   
Name: gaurav dutt
Date: 2010-12-24 1:45:38 AM
Comment:
article is very good. It's very simple to understand
Title: feed back   
Name: murli dhar
Date: 2010-11-10 1:26:29 AM
Comment:
too good define
Title: Feedback   
Name: dhanesh
Date: 2010-10-27 12:02:45 PM
Comment:
Very good article
Title: Table Schedule vs. Catalog Schedule   
Name: Joe
Date: 2010-08-27 2:26:45 PM
Comment:
What is the difference between a table schedule and a catalog schedule?
Title: Good Article   
Name: Boon
Date: 2010-08-24 1:30:41 AM
Comment:
Good Article... Easy to understand
Title: Most Helpfull   
Name: Manoj Kumar Nayak
Date: 2010-07-30 1:18:19 AM
Comment:
Its a very good article but if u mention directly what are the advantages and disadvantages then its better to all. Immediately one person can understand how much help full this feature in my project
Title: Work Properly   
Name: Karan Singh
Date: 2010-07-28 5:08:26 AM
Comment:
It's work fine but i need multiple field condition in where clauses if u have please send me on karan.yogis@gmail.com.
Thanks for above code.
Title: Most Helpfull   
Name: surendra saini
Date: 2010-07-28 1:25:42 AM
Comment:
this example is very help full
thanks
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Name: Vijay Sharma-Akruti Software
Date: 2010-04-01 6:08:47 AM
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its so simple & eassy to map.
Thanks.
Title: Now working   
Name: Hussain
Date: 2010-03-17 9:11:16 AM
Comment:
select * from tbltest where CONTAINS ([name],'LN') not showing any result but
select * from tbltest where like 'LN' showing Can you suggest what may be the problem
Title: Example for Full Text: Try it   
Name: Vipul Prasad
Date: 2010-02-26 2:32:38 AM
Comment:
EXEC sp_fulltext_database 'enable'
EXEC sp_fulltext_catalog 'KCatalog', 'create';

EXEC sp_fulltext_table 'Table1', 'create', 'KCatalog', 'pk_Table1'

EXEC sp_fulltext_column 'Table1', 'Subject', 'add'
EXEC sp_fulltext_column 'Table1', 'Message', 'add'

EXEC sp_fulltext_table 'Table1','activate'

EXEC sp_fulltext_catalog 'KForumCatalog', 'start_full'

my Table contains

ID(P.K) Subject(nvarchar) Message(text)

1 Hello All This is test

You have to set CHANGE_TRACKING AUTO while creating fulltext catalog.

Otherwise it will not populate automatically,
and you need to RUN last EXEC for every new row updation.
Title: Mr   
Name: Krishnaraj
Date: 2010-01-26 9:37:12 AM
Comment:
Its simple and easy get the point for what we looking for...

thanks..
Title: Mr   
Name: Pawan
Date: 2010-01-08 2:15:12 AM
Comment:
good one. simple and easy to understand
Title: Understanding Full Text Search in SQL Server 2005   
Name: Jerome D
Date: 2009-12-09 8:50:20 AM
Comment:
Good article for beginners! Everything in this article works. More examples are need, these are examples of the scenarios where you use the different predicates
Title: Good article   
Name: Hiren
Date: 2009-11-18 2:08:03 AM
Comment:
thanks for this article..
this article is very easy to understand..
Title: thanking you   
Name: harsh chhajer
Date: 2009-09-05 9:10:51 AM
Comment:
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Title: Some query in Fulltext   
Name: Shingala Atul
Date: 2009-05-12 4:28:45 AM
Comment:
Ineed some help if anyone done this my problem is if i want to search only on character into word through free text.
i know it search only whole word but if anyone do this thing then please replay
Title: Problem   
Name: Howard Roarke
Date: 2009-03-24 7:27:49 AM
Comment:
dint work for me.need a detailed article please....
Title: Useful   
Name: Deepthi
Date: 2009-03-24 7:25:27 AM
Comment:
useful article.....
Title: Problem   
Name: Jig
Date: 2009-03-05 7:21:38 AM
Comment:
Good article, but i have a problem, when i try to search pendant in my table it gives me records bu if i search by "dndant" then it doesnt return any record.
Title: Understanding Full Text Search in SQL Server 2005   
Name: Harpal
Date: 2009-01-14 12:16:44 AM
Comment:
Gr8 article. thanx.
Title: Understanding Full Text Search in SQL Server 2005   
Name: Sanjeev
Date: 2008-11-13 12:24:53 PM
Comment:
Good article for Beginers , Thanks for sharing .
Please explain other advanced topics soon in full text .

Thanks
Title: make it simple   
Name: Neela
Date: 2008-11-01 12:26:48 AM
Comment:
want to make catalogue for differant cat.please explain in simple language
Title: Try to explain more next time....   
Name: WebEye
Date: 2008-09-05 11:48:52 PM
Comment:
Try to explain more next time....
Title: Mr.   
Name: Hitesh
Date: 2008-07-30 12:37:47 PM
Comment:
Good Article.
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Name: Programmer
Date: 2008-07-08 5:02:18 AM
Comment:
More details please
Title: Mr   
Name: Prasad
Date: 2008-05-07 2:34:49 PM
Comment:
Good Article for beginers
Title: Mr   
Name: khodor
Date: 2008-04-21 4:52:41 PM
Comment:
it is a good in general but i want more example about freetext table and containstable
Title: SQL Full Text Search - storage   
Name: Jack Kangas
Date: 2007-12-24 3:46:39 PM
Comment:
You mention that section on MSFTESQL (a windows service) - manages "the full text catalogs taht are stored within SQL Server"

I just created an index and there is now 75 meg of files in a catalog folder on the machine. What is in those .ci, .dir and .wid files?

I am asking because I am concerned about security on the words that are in the full text index. If anyone could read the words in those files (that are external to SQL Server's normal MDB, NDB, and LDB files.
Title: SQL Full Text Search   
Name: Saurabh Sharma
Date: 2007-12-09 11:52:07 PM
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Another gr8 one article.
Title: SQL Full Text Search   
Name: SAuarbh Sharma Software Engineer.
Date: 2007-12-09 11:50:47 PM
Comment:
It's Really Helpful and gr8 article. Thanx.
Title: SQL Full Text Search   
Name: Nitin Sharma Software Engineer
Date: 2007-12-03 10:53:50 PM
Comment:
Great one..!!






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