Agree with Nick that Jing's task doesn't really need Lucene if mostly range search is needed. Database is good for range search.
But for his search on 'Select * from table where Name like "%mymymy%"'. It's not a scalable solution for database. And using Lucene makes a lot of sense. The easiest way is to create a Lucene index, and apply range search on the index. -- Chris Lu ------------------------- Instant Scalable Full-Text Search On Any Database/Application site: http://www.dbsight.net demo: http://search.dbsight.com Lucene Database Search in 3 minutes: http://wiki.dbsight.com/index.php?title=Create_Lucene_Database_Search_in_3_minutes DBSight customer, a shopping comparison site, (anonymous per request) got 2.6 Million Euro funding! On Tue, Apr 8, 2008 at 6:56 AM, Duan, Nick <[EMAIL PROTECTED]> wrote: > I think this should be a new thread since it's a different problem. > > Based on your description, I don't see any compelling reasons for you to > use Lucene just for indexing purposes, since you are not indexing text > docs as you indicated. Claiming database of lacking performance is not > accurate and objective. Your search queries have only the name field > and the two number fields in the where clause. So you can perform > indexing on those two fields using database's own indexing mechanism, > i.e. the "create index ..." statement, if these fields are not already > declared as primary keys. You will see dramatic performance improvement > of your search queries. > > ND > > -----Original Message----- > From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] > Sent: Monday, April 07, 2008 1:19 PM > To: java-user@lucene.apache.org > Subject: RE: Indexing and Searching from within a single Document > > Hi, > > I have a similar question. Not heard back from anyone yet. > > > Dear Lucene experts, > > I'm currently evaluating options for our search tool. > > The need is: > I have millions of entries in database, each entry is in such format > (more or less) > > ID Name Description start (number) stop(number) > > > Currently my application uses the database to do search, queries are in > the following format: > > Select * from table where Name like "%mymymy%" > > Select * from table where start >5 and stop <50000 > > > > I would like very much to use Lucene for such search, for the reason: > 1. database performance is not ideal; > 2. data is growing to be too big, I want to move to file system, > 3. Currently everything is on server, user access through a web > application. I want to provide rich client tool, in which case I would > rather not to bother with database installations on client machine. > Database is my last option; > 4. Lucene sounds very cool, I want to use a different technology than > database, which we are very familiar with already. > > > > I read the book, played with the demo. My question is: > As you see, I'm not indexing or querying out documents, I'm interested > in one row of data. If I want to use Lucene, how should I do it? Do I > have to store my data as documents? Since I have millions and millions > of rows in database, if I store each row as a document, it'd be millions > of documents. > > > What do you suggest? > > Thank you! > Jing > > -----Original Message----- > From: syedfa [mailto:[EMAIL PROTECTED] > Sent: Monday, April 07, 2008 10:13 AM > To: java-user@lucene.apache.org > Subject: Indexing and Searching from within a single Document > > > Dear Fellow Java/Lucene developers: > > I am writing an application where a user is able to search for keywords > from > within a single book. When the user conducts a search, he/she should > receive a set of results that show the sentence/phrase within the book > where > the keyword is found. Unfortunately, all of the examples that I have > for > searching using Lucene discuss the concept of searching multiple > documents, > instead of within a single document. I have written an application that > creates an index of this book, but I now want to search it. In the > result > set, I would like the keyword(s) to be highlighted using Lucene's > HighLighter feature. Once the user clicks on the hit from the result > set > list that they are looking for, the application should take them > directly > within to that section of the book where that keyword is found. The > book > that I have indexed is in xml format. > > My question is, how would I write an application that allows me to > search a > single document, and present a set of results to the user that list > portions > of text from the book that contains the user's keyword, instead of > presenting a list of document titles where that keyword is found? > > Any help would be greatly appreciated. Thanks to all who reply. > > Sincerely; > Fayyaz > -- > View this message in context: > http://www.nabble.com/Indexing-and-Searching-from-within-a-single-Docume > nt-tp16537558p16537558.html > Sent from the Lucene - Java Users mailing list archive at Nabble.com. > > > --------------------------------------------------------------------- > To unsubscribe, e-mail: [EMAIL PROTECTED] > For additional commands, e-mail: [EMAIL PROTECTED] > > > > > --------------------------------------------------------------------- > To unsubscribe, e-mail: [EMAIL PROTECTED] > For additional commands, e-mail: [EMAIL PROTECTED] > > > --------------------------------------------------------------------- > To unsubscribe, e-mail: [EMAIL PROTECTED] > For additional commands, e-mail: [EMAIL PROTECTED] > > --------------------------------------------------------------------- To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
