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From:Schalk Date:February 23 2006 11:59am
Subject:Query returns to many results
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Greetings All,

Please have a look at the following query:

SELECT abm.mem_number, abm.first_name, abm.last_name, 
abm.area_represented, abm.age, abm.sex, abm.cup,
ablb.*, ablb.jp + ablb.rc + ablb.fsmgp + ablb.gmc + ablb.saly + 
ablb.nwgp + ablb.ecgp + ablb.sams + ablb.wcc + ablb.kzngp + ablb.emc + 
ablb.lmgp + ablb.saff + ablb.gmgp + ablb.safy + ablb.mmw + ablb.lc + 
ablb.mmc + ablb.nwmc + ablb.ncc + ablb.samp + ablb.gsc + ablb.wcmgp + 
ablb.sapm + ablb.kznc + ablb.npc + ablb.smc + ablb.ecc + ablb.mgp + 
ablb.samo + ablb.cofc + ablb.cs + ablb.ncmgp + ablb.fsc + ablb.ggp + 
ablb.tmc + ablb.gc + ablb.yotm AS total_points 
FROM ab_leader_board ablb, ab_members abm
WHERE abm.sex = 'Female' AND abm.cup = 'kids'
ORDER BY total_points DESC

Now this query is run over two tables and the ab_members table contains 
around 302 rows. Around 1/3 of these will be where cup=kids. However, 
when this query is run it returns 20,700 results :0 Any idea why this 
is? Also, any help or pointers as to how I can optimize this query will 
be much appreciated. Thank you!

-- 
Kind Regards
Schalk Neethling
Web Developer.Designer.Programmer.President
Volume4.Business.Solution.Developers


Thread
Query returns to many resultsSchalk23 Feb
  • Re: Query returns to many resultsGeorge Law23 Feb
    • Re: Query returns to many resultsSchalk23 Feb
      • Re: Query returns to many resultsSGreen23 Feb
        • Re: Query returns to many resultsMartijn Tonies23 Feb
  • Re: Query returns to many resultsPeter Brawley24 Feb
    • Re: Query returns to many resultsSchalk24 Feb