Queries with "like" and full text indexes

Hi
I use ASPNET application using Sql Ser 2000 database. There are a lot of
queries using "like" statement.
I suffer bad performance of that application and I noticed in SQL Profiler
that those "like" queries takes a lot of time.
I heard about full text queries and I wonder if it could boost the queries
performance.
Please advise me if I'm right.
Best Regards
Darek T.Dariusz
Yes , if you use LIKE '%test%' so SQL Server probably will choose
TABLE/INDEX SCAN to perfom the query , however using LIKE 'test'% will
INDXEX/CLUSTERED INDEX SEEK. Well , obviously it depends on many things and
we don't know how do you run the queries?
I can't say that you are going to gain some benefits (in terms of
perfomance) of using FTI due to not using this feature for long time , so
maybe someone else can provide more info.
"Dariusz Tomon" <d.tomon@.mazars.pl> wrote in message
news:%23uECaDZfGHA.3652@.TK2MSFTNGP02.phx.gbl...
> Hi
> I use ASPNET application using Sql Ser 2000 database. There are a lot of
> queries using "like" statement.
> I suffer bad performance of that application and I noticed in SQL Profiler
> that those "like" queries takes a lot of time.
> I heard about full text queries and I wonder if it could boost the queries
> performance.
> Please advise me if I'm right.
>
> Best Regards
> Darek T.
>|||In most cases it will. If you have a restriction the restriction will be
applied after the results set comes back from the query of the full text
catalog. If you are returning a large number of rows this will be
expensive.
Hilary Cotter
Director of Text Mining and Database Strategy
RelevantNOISE.Com - Dedicated to mining blogs for business intelligence.
This posting is my own and doesn't necessarily represent RelevantNoise's
positions, strategies or opinions.
Looking for a SQL Server replication book?
http://www.nwsu.com/0974973602.html
Looking for a FAQ on Indexing Services/SQL FTS
http://www.indexserverfaq.com
"Dariusz Tomon" <d.tomon@.mazars.pl> wrote in message
news:%23uECaDZfGHA.3652@.TK2MSFTNGP02.phx.gbl...
> Hi
> I use ASPNET application using Sql Ser 2000 database. There are a lot of
> queries using "like" statement.
> I suffer bad performance of that application and I noticed in SQL Profiler
> that those "like" queries takes a lot of time.
> I heard about full text queries and I wonder if it could boost the queries
> performance.
> Please advise me if I'm right.
>
> Best Regards
> Darek T.
>

Queries with "like" and full text indexes

Hi
I use ASPNET application using Sql Ser 2000 database. There are a lot of
queries using "like" statement.
I suffer bad performance of that application and I noticed in SQL Profiler
that those "like" queries takes a lot of time.
I heard about full text queries and I wonder if it could boost the queries
performance.
Please advise me if I'm right.
Best Regards
Darek T.Please don't multipost , I have just answered the question in .programming
"Dariusz Tomon" <d.tomon@.mazars.pl> wrote in message
news:uEudZDZfGHA.3652@.TK2MSFTNGP02.phx.gbl...
> Hi
> I use ASPNET application using Sql Ser 2000 database. There are a lot of
> queries using "like" statement.
> I suffer bad performance of that application and I noticed in SQL Profiler
> that those "like" queries takes a lot of time.
> I heard about full text queries and I wonder if it could boost the queries
> performance.
> Please advise me if I'm right.
>
> Best Regards
> Darek T.
>|||ok, sorry
"Uri Dimant" <urid@.iscar.co.il> wrote in message
news:euvWZNZfGHA.1856@.TK2MSFTNGP03.phx.gbl...
> Please don't multipost , I have just answered the question in .programming
> "Dariusz Tomon" <d.tomon@.mazars.pl> wrote in message
> news:uEudZDZfGHA.3652@.TK2MSFTNGP02.phx.gbl...
>

Queries with "like" and full text indexes

Hi
I use ASPNET application using Sql Ser 2000 database. There are a lot of
queries using "like" statement.
I suffer bad performance of that application and I noticed in SQL Profiler
that those "like" queries takes a lot of time.
I heard about full text queries and I wonder if it could boost the queries
performance.
Please advise me if I'm right.
Best Regards
Darek T.Please don't multipost , I have just answered the question in .programming
"Dariusz Tomon" <d.tomon@.mazars.pl> wrote in message
news:uEudZDZfGHA.3652@.TK2MSFTNGP02.phx.gbl...
> Hi
> I use ASPNET application using Sql Ser 2000 database. There are a lot of
> queries using "like" statement.
> I suffer bad performance of that application and I noticed in SQL Profiler
> that those "like" queries takes a lot of time.
> I heard about full text queries and I wonder if it could boost the queries
> performance.
> Please advise me if I'm right.
>
> Best Regards
> Darek T.
>|||ok, sorry
"Uri Dimant" <urid@.iscar.co.il> wrote in message
news:euvWZNZfGHA.1856@.TK2MSFTNGP03.phx.gbl...
> Please don't multipost , I have just answered the question in .programming
> "Dariusz Tomon" <d.tomon@.mazars.pl> wrote in message
> news:uEudZDZfGHA.3652@.TK2MSFTNGP02.phx.gbl...
>> Hi
>> I use ASPNET application using Sql Ser 2000 database. There are a lot of
>> queries using "like" statement.
>> I suffer bad performance of that application and I noticed in SQL
>> Profiler that those "like" queries takes a lot of time.
>> I heard about full text queries and I wonder if it could boost the
>> queries performance.
>> Please advise me if I'm right.
>>
>> Best Regards
>> Darek T.
>