Solved

Mysql match() againts() giving some problems to me?

Posted on 2010-11-11
4
315 Views
Last Modified: 2012-05-10
Hello, I have a litle query that I am using to search inside a database, I have a fulltext index for the fields "titulo & descripcion", and the query works... the problem comes when I put something that doesn't exist in the database (like the search I have in the query "280394829038402938409283403409240240849") this shouldn't give results but the problem is that it keeps giving me results... is there something I am doing wrong?

Thank's

SELECT * , MATCH(titulo, descripcion) AGAINST ('280394829038402938409283403409240240849') as coincidencia from preguntas order by coincidencia DESC
0
Comment
Question by:visionari
[X]
Welcome to Experts Exchange

Add your voice to the tech community where 5M+ people just like you are talking about what matters.

  • Help others & share knowledge
  • Earn cash & points
  • Learn & ask questions
  • 2
4 Comments
 
LVL 35

Expert Comment

by:Terry Woods
ID: 34116472
The match relevance is returned as a positive floating point number, or 0 for no similarity. It must be deciding there is a small similarity somehow! Try this:

SELECT * , MATCH(titulo, descripcion) AGAINST ('280394829038402938409283403409240240849'  IN BOOLEAN MODE) as coincidencia from preguntas order by coincidencia DESC
0
 

Author Comment

by:visionari
ID: 34130439
mmh, not really working for me, all I get is 0 in coincidencia even in keywords that exist...
0
 
LVL 143

Accepted Solution

by:
Guy Hengel [angelIII / a3] earned 500 total points
ID: 34133892
you have to put that into the WHERE also!
SELECT * , MATCH(titulo, descripcion) AGAINST ('280394829038402938409283403409240240849') as coincidencia 
  FROM preguntas 
 WHERE MATCH(titulo, descripcion) AGAINST ('280394829038402938409283403409240240849') 
ORDER BY coincidencia DESC 

Open in new window

0
 

Author Closing Comment

by:visionari
ID: 34171859
Thank's!
0

Featured Post

Enroll in July's Course of the Month

July's Course of the Month is now available! Enroll to learn HTML5 and prepare for certification. It's free for Premium Members, Team Accounts, and Qualified Experts.

Question has a verified solution.

If you are experiencing a similar issue, please ask a related question

Introduction This article is intended for those who are new to PHP error handling (https://www.experts-exchange.com/articles/11769/And-by-the-way-I-am-New-to-PHP.html).  It addresses one of the most common problems that plague beginning PHP develop…
Recently, Microsoft released a best-practice guide for securing Active Directory. It's a whopping 300+ pages long. Those of us tasked with securing our company’s databases and systems would, ideally, have time to devote to learning the ins and outs…
Polish reports in Access so they look terrific. Take yourself to another level. Equations, Back Color, Alternate Back Color. Write easy VBA Code. Tighten space to use less pages. Launch report from a menu, considering criteria only when it is filled…
This is a high-level webinar that covers the history of enterprise open source database use. It addresses both the advantages companies see in using open source database technologies, as well as the fears and reservations they might have. In this…

636 members asked questions and received personalized solutions in the past 7 days.

Join the community of 500,000 technology professionals and ask your questions.

Join & Ask a Question