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PO$query returns results but not the ones i want - having count?
 

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  1. PO$query returns results but not the ones i want - having count?
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    <p>I'll start again,</p> <p>Lets say My data is:</p> <p><strong>Table element</strong> (id,name,....)</p> <hr> <p>1, name element 1, ....</p> <p>2, name element 2, ....</p> <p>3, name element 3, ....</p> <p><strong>Table tags</strong> (id,name,id_element, ....)</p> <hr> <p>1, happy , 1</p> <p>2, result, 1</p> <p>3, very , 1</p> <p>4, element, 2</p> <p>5, another, 3</p> <p>6, element, 1</p> <p>7, happy, 2</p> <p><strong>So if search is '<em>very, happy,element,result</em>': Results i would like</strong></p> <hr> <p>1) element with id = 2 because it has all tags</p> <p>2) element with id = 1 because it has the tag 'element' and the tag 'happy' (only 2 less taggs)</p> <p>3) .... (only 3 less taggs)</p> <p><strong>So if search is '<em>happy,element</em>': Results i would like</strong></p> <hr> <p>1) element with id = 1 because it has all tags (and no more)</p> <p>2) element with id = 2 because it has the tag 'element' and the tag 'happy' (and two more tags)</p> <p>3) .... and 3 more tags</p> <hr> <p>This is an echo to my query: (it doesn't fit al requirements i wrote, but its first test to find with matched tags)</p> <pre><code>SELECT element.id as id_deseada,tagg.* FROM element,tagg WHERE tagg.id_element = element.id AND tagg.nombre IN ('happy','tagg','result') GROUP BY tagg.id_element ORDER BY element.votos </code></pre> <p>This returns 10 duplicated elements... :S and doen't even have all taggs (and on database there are taggs with 'happy' results)</p> <hr> <p>if it helps, thats how i get the elements of a tag (by name and with only one tagg)</p> <pre><code>$query = "SELECT element.id FROM element,tagg WHERE tagg.nombre = '$nombre_tagg' AND tagg.id_element = element.id AND lan = '$lan' GROUP BY tagg.id_element"; </code></pre> <hr> <p>I hope it's a bit easier to understand now, excuse my english.. :)</p> <p>------- EDIT ----------</p> <p>I Got this query working, goted from: <a href="http://www.pui.ch/phred/archives/2005/04/tags-database-schemas.html" rel="nofollow">http://www.pui.ch/phred/archives/2005/04/tags-database-schemas.html</a> (second example is my estructure)</p> <pre><code> SELECT b.* FROM scBookmarks b, scCategories c WHERE c.bId = b.bId AND (c.category IN ('bookmark', 'webservice', 'semweb')) GROUP BY b.bId HAVING COUNT( b.bId )=3 </code></pre> <p>imagine bookmark is element and category is tag (for my example)</p> <p>It works great, it returns all elements with ALL tags, BUT it return aswell the articles with extra tags,</p> <p><strong>for that query a possible ressult would be:</strong></p> <p><em>Element 6 with tags (bookmark, webserbice, semweb, extratag)</em> </p> <p>and i want this extra tag (actually any other extra tags), is something to do with HAVING COUNT ?</p> <p>I know</p> <p>Thanks a lot for you possible aportation!</p>
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    1. USOMG Ponies
    1. USToni Michel Caubet
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      1. PO$query returns results but not the ones i want - having count?
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      1. VTUpMod
    1. COI did get lost but I hope that you escape (`mysql_real_escape_string`) those variables in your query.
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      1. USpedro_sland
    2. COBTW you probably mean "tag", not "tagg".
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      1. USLightness Races in Orbit
    3. COPerhaps you could edit your question and start again with "Expected output", "Actual output", "Database tables structure" and 5 sample rows from each table? Leave out PHP entirely since that doesn't seem to be the problem. Please keep the query that you are trying to use.
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      1. USpedro_sland
 

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