Pattern Matching And Full-text Search

Aug 30, 2007

I'm not quite sure that this is possible but, I figured that I would check with you experts out there before trying a new approach. I've done quite a bit of research and have not seen anyone quite figure this out yet.

We have a SQL Server 2005 application that stores and indexes documents to the database as an image data type. I'm able to do full-text queries against the documents without any trouble. I begin to run into problems when trying to pattern match social security numbers and drivers licenses stored in a full-text index. I have a user defined function that I call which runs my regular expression that checks for hits of a ssn or license number in the index. I have no problem getting hits when the data sits in a column.

I do need to mention that I have no trouble when searching for a ssn with a fixed value and where I know the ssn (ex: 123-45-6789). I am actually trying to find the existence of the pattern of ###-##-#### (ex: ^d{3}-d{2}-d{4}$) anywhere in the index.
Any help would be very much appreciated.

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SQL Server 2008 :: Pattern Matching And Extract Text

Sep 17, 2015

I have two tables in SQL Server--an expression table and a translate table.

DECLARE @EXPRTABLE TABLE
(
expression varchar(100)
)

INSERT INTO @EXPRTABLE
SELECT 'CALL("-","","TEST")'

[Code] ....

I am trying to (for lack of a better way to explain it), overlay the pattern onto the expression and extract the text where the "#" symbols are.

So,

CALL("-","","TEST") using pattern CALL("#","#","#") would return -,,TEST
SUB(2,67,TEST,4,) using pattern SUB(2,#,TEST,4,) would return 67

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Dec 11, 2007

hi
i have a table with a column which contains a large paragraph of data.
i need to search for a pattern within this text and update it.
 
for example  the column contains 4096 char.
within this text, i search for a pattern"qwerty" and convert it to "asdfgh".
any ideas how this can be done?
i'm using sql server 2000
 i have to write something like
UPDATE [DB].[dbo].[Table] SET [Column1] = '.............', WHERE ..........
any help will be appreciated.
 
 

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Full Text With Fuzzy Matching

Jan 11, 2007

Andrew Worral writes "I am currenly working on a website that uses Full Text search to search the name of companies.

We are having trouble figuring out what tools are best suited for this with SQL 2005 Standard/Enterprise and how to implement them.

The first issue to address would be Misspelling of words. Such as Looking For "Davids Shoe Repare" and returning "David's Shoe Repair"

Besides the spelling in "Davids Shoe Repare" there is also the issue of the " ' " in David's which we have not come up with a good solution for yet. So a search for David will not returns "David's"

I have done a little looking into Fuzzy matching with Integration Services but I am not sure this is the right tool, nor am I sure of the overhead involved and any speed issues with this. Nor am I in any way overly familiar with Integration Services.

What would you suggest?

Thank you in advance!

-Andy"

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Mar 29, 2008

 Hi -  I'm short of SQL experience and hacking my way through creating a simple search feature for a personal project. I would be very grateful if anyone could help me out with writing a stored procedure. Problem: I have two tables with three columns indexed for full-text search. So far I have been able to successfully execute the following query returning matching row ids:  dbo.Search_Articles        @searchText varchar(150)        AS    SELECT ArticleID     FROM articles    WHERE CONTAINS(Description, @searchText) OR CONTAINS(Title, @searchText)    UNION    SELECT ArticleID     FROM article_pages    WHERE CONTAINS(Text, @searchText);        RETURN This returns the ArticleID for any articles or article_pages records where there is a text match. I ultimately need the stored procedure to return all columns from the articles table for matches and not just the StoryID. Seems like maybe I should try using some kind of JOIN on the result of the UNION above and the articles table? But I have so far been unable to figure out how to do this as I can't seem to declare a name for the result table of the UNION above. Perhaps there is another more eloquent solution? Thanks! Peter 

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SQL Search :: Full Text Search With Single Character Returns All Rows

Jul 21, 2015

Our clients want to be able to do full text search with a single letter. (Is the name Newton, Nathan, Nick?, Is the ID N1, N2...). Doing a single character full text search on a table work 25 out of 26 times. The letter that doesn't work is 'n'. the WHERE clause CONTAINS(full_text_field, ' "n*" ') returns all rows, even rows that have no 'n' in them anywhere. Adding a second letter after the "n" works as expected.

Here is an example

create table TestFullTextSearch (
Id int not null,
AllText nvarchar(400)
)
create unique index test_tfts on TestFullTextSearch(Id);
create fulltext catalog ftcat_tfts;

[Code] ....

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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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Create Site Search Using Sql Server Full Text Search

Jul 24, 2007

would you use sql server "full text search" feature as your site index?  from some reason i can't make index server my site search catalog, and i wonder if the full text is the solution. i think that i wll have to you create new table called some thing like "site text" and i will need to write every text twice- one the the table (let's say "articles table") and one to the text. other wise- there is problems finding the right urlof the text, searching different tables with different columns name and so on...
so i thought create site search table, with the columns:
id, text, url
and to write every thing to this table.
but some how ot look the wrong way, that every forum post, every article, album picture or joke will insert twice to the sqr server...
what do you think? 

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SQL Search :: Full Text Search Of PDF Files In A File Table

Mar 30, 2013

I have installed the Adobe iFilter 11 64 bit and set the path to the bin folder. I still cannot find any text from the pdf files. I suspect I am missing something trivial because I don't find much when I Bing for this so it must not be a common problem.Here is the code.

--Adobe iFilter 11 64 bit is installed
--The Path variable is set to the bin folder for the Adobe iFilter.
--SQL Developer version 64 bit on both Windows 7 and Windows 8.
USE master;
GO
DROP DATABASE FileTableStudy;
GO
CREATE DATABASE FileTableStudy
ON PRIMARY

[code]....

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Dec 11, 2006

How can I search throught DOCX (MS Word 2007) documents by SQL Server 2005 Full Text Search engine?

Should I something download?

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Sep 14, 2004

Please help me to create an SQL Server 2000 Stored Procedure for using prefix and suffix terms.

Example:

Say I want to find "Terminator" (1984).

I want to be able to use "Term" or "ator" as search results and still return the proper record.

Here is my Stored Procedure creation sql:


CREATE PROCEDURE sps_searchTitles(@searchTerm varchar(255)) AS
SELECT * FROM Video
WHERE FREETEXT (Video.*, '"*@searchTerm*"')
GO


--- The above does not appear to properly check both prefix ("Term---") and suffix ("---ator") terms.

I am trying to accomplish what is similarly done with LIKE '%term%'.

thanks, YM

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Jul 6, 2007

I have Sql server 2005 SP2.
I enabled it for Full Text search. Substring search where i enter *word* doesn't return any row.
I have a table testtable where description has word Extinguisher.

If i run a query with *ting* it doesn't return any row.
select * from testtable where contains(description,'"*xting*"') ;

But it works if i do
select * from testtable where contains(description,'"Exting*"') ;

The Full text search document says it supports substring search.
Is it an issue with sql server 2005?Please help.

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Nov 1, 2015

I am using Sql Server 2014 Express edition.I have a table with a varchar(max) column. I have created a full text search that use the stoplist "system". column has this struct: xxx.yyy.zzz.... where xxx, yyy, zzz... are numbers, like 123.345.123123.366456...I can have rows like that:

123.345
123.345
123.345.444
123.345.555
123.345.666
123.345.444.777
123.345.444.888
123.345.555.999

I am trying this query:

select * from Mytable where
contains(MyColumn, '123.345.')

I gues the contains would return all the rows with column contains 123.345, but this does not return all the expected rows, only one row.I have tried to replace "." with "-" but the result is the same.I have also tried with '123.345.*. In this case I have got more results, but no all the exptected rows.If I use this query:

select * from MyTable where
MyCOlumn like '123.345.%';

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Mar 20, 2008

Hi everyone. I'm developing a web search engine using asp and SQL Server 2000. I need to return records that matches with a string entered by users. In example, suppose my database to have this structure and it's filled like this:

ID NAME KEYWORDS
--- ------- -----------
AA025 NAME1 attached, atic, common, business, hotels
AA026 NAME2 headache, medicin, aspirins, heat, health
AA027 NAME3 at, services, music, electronics

suppose that user enters 'at'. By now, i'm using this pattern '%<input_text>%'. So in this example, pattern would be '%at%'. As i remarked in the fields above, the three fields matches, and that's not what i'm looking for. I want that the result of that query be just the last field, with 'AA027' ID.
Thanks in advance guys.
Cheers.

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Sep 7, 2007

Hi, i'm trying to do a full text search on my site to add a weighting score to my results.  I have the following database structure:
Documents: - DocumentID (int, PK) - Title (varchar) - Content (text) - CategoryID (int, FK)
Categories: - CategoryID (int, PK) - CategoryName (varchar)
I need to create a full text index which searches the Title, Content and CategoryName fields.  I figured since i needed to search the CategoryName field i would create an indexed view.  I tried to execute the following query:
CREATE VIEW vw_DocumentsWITH SCHEMABINDING ASSELECT dbo.Documents.DocumentID, dbo.Documents.Title, dbo.Documents.[Content], dbo.Documents.CategoryID, dbo.Categories.CategoryNameFROM dbo.Categories INNER JOIN dbo.Documents ON dbo.Categories.CategoryID = dbo.Documents.CategoryID
GOCREATE UNIQUE CLUSTERED INDEX vw_DocumentsIndexON vw_Documents(DocumentID)
But this gave me the error:
Cannot create index on view 'dbname.dbo.vw_Documents'. It contains text, ntext, image or xml columns.
I tried converting the Content to a varchar(max) within my view but it still didn't like.
Appreciate if someone can tell me how this can be done as surely what i'm trying to do is not ground breaking.

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Sep 12, 2007

Hello everyone !
I want to perform Full Text Search with SQL Server 2000. My documents (.doc, .xls, .txt, .pdf) are stored in a SQL Server field which is binary (the type of the column is image).
I would like to know, how you can extract pieces of text from the documents.
Example:
I have a ASPX page with codebehind in C# making the search in a table in SQL server that is full text indexed.
I make a search looking for the word "peace", than SQL server will take care about the search and return it to me the rows that match with that. But also I'd like to extract the 50 characters before and after where sql server found the word "peace" to show in the result page.
Does anyone has any idea how to work around it ?
 Best regards.
Yannick

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Apr 2, 2004

for example:

SELECT * from [table1] WHERE CONTAINS([msgcomment], '"fast" NEAR "performance"')

would always slower than

SELECT * from [table1] WHERE [msgcomment] = '%fast%performance%'


Why? and how can it be solved? can you help me?

:)

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Jun 24, 2015

I'm experiencing an anomaly with my Full text index.

Setup : SQL Server 2005
Indexed Table:
Assets
ID - int (PK, auto increment)
Ref - varchar(50)

[code]....

I have re-built the full-text index, no change.

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However, the following doesn't work.
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from tablename
where fieldname
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Jul 23, 2005

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Mar 19, 2008

I've decalred this stored procedure with a simple where and like statement. The problem is I don't see any result.
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@NameSearch varchar(50)
as
select ProfileFirstName +' '+ ProfileLastName as ProfileName
from Profiles
where ProfileLastName like '%@NameSearch%';


When i change this line:
where ProfileLastName like '%@NameSearch%';
to
where ProfileLastName like '%Bil%';

I see names starting with Bil, but when i enter Bil as param, I don't get anything.

What's wrong here ?

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Aug 25, 2006

I want to check for multiple patterns in a particular column.
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My requirment is to select all rows for which column value matches with many patterns.I will fetch the patterns in a subquery
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Any thoughts?

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Oct 29, 2007

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Apr 22, 2005

The LIKE keyword in SELECT WHERE can use wildcard



%
Any string of zero or more characters.

_
Any single character.
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Jan 24, 2006

Are there any big differences between the two search techniques? It seems like they are both very similar.

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Dec 20, 2013

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For reporting purposes, I need to break this column into the separate words so that it looks like:

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how this can be achieved?

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Feb 20, 2014

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ColA
--------
42/90
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Feb 8, 2008



Chaps,

apologies for the drip-drip approach......

Is it possible to do pattern matching against a string using FINDSTRING or similar in a derived column expression without recourse to including 3rd party regexp style plugins?

I want to seach for a reference in a string which will have the format ANNNNNAAA ie. an alpha with a certain value followed by 5 digits followed by three alphas with specific values.

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thanks for your assistance,

regards,

Chris

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Apr 23, 2007

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Dec 10, 2007

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Apr 19, 2008

Hello !
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May 4, 2005

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Mar 3, 2006

Hi friends
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