SQL uncontrollable |
SQL uncontrollable |
edson1314 |
Nov 15 2010, 10:36 PM
Post
#1
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Group: Members Posts: 4 Joined: 15-November 10 Member No.: 13,153 |
I already expressed in a previous post (if possible delete) and I did so very awkward.
That is a better presentation of my problem: I have 3 tables: - Members (site members) - Categories (categories of members: developer, designer, etc. ..) - Skills (the skills of members in each category (php / mysql developer in 2D and 3D design, etc ...) My goal is: (in the context of a search by jurisdiction, category etc ...) Display for each member who responds to his nickname search criteria, skills, date of postulation etc. ... The problem occurs at this time of reflection, I have attached the 3 tables in my SQL but the script does not do what I want! Code: SQL CODE SELECT co.competence, co.type, co.time, co.note, co.id, ca.available ace available, ca.refs, m.pseudo, ca.id AS CategoryID, ca.Class, DATE_FORMAT(datepostulation, "% D /% m /% Y") AS date, m.Class AS droitsmembre, m.id AS idmembre FROM Categories AS ca LEFT JOIN Member AS m ON m.id=ca.idmembre LEFT JOIN skills AS co ON co.type="Spe" AND co.CategoryID=ca.id WHERE m.valid=1 AND ca.state=1 AND ca.Class="Developer" The results of this query looks like this: Image utilisateur Yet this does not suit me since the application displays one line per jurisdiction and not by individual. There's there is an inconsistency in the statement? Thank you in advance! T'ry. |
wgabrie |
Nov 26 2010, 01:13 PM
Post
#2
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Advanced Member Group: Members Posts: 148 Joined: 11-July 10 Member No.: 12,279 |
Let's see, I've not used SQL before, but I want to try looking it up.
So, You've used: 1. SELECT. I think you selected more entries than you defined using "AS". Could this perhaps be a problem? 2. AS - which is an: Alias. 3. JOIN specifically a LEFT JOIN 4. WHERE From your description perhaps you are pulling the database tables in the wrong order. Or perhaps you need to focus on the "individuals" table first then join the other tables to it. I'm not sure where you're going wrong. CODE SELECT co.competence, co.type, co.time, co.note, co.id, ca.available ace available, ca.refs, m.pseudo, ca.id AS CategoryID, ca.Class, DATE_FORMAT(datepostulation, "% D /% m /% Y") AS date, m.Class AS droitsmembre, m.id AS idmembre FROM Categories AS ca LEFT JOIN Member AS m ON m.id=ca.idmembre LEFT JOIN skills AS co ON co.type="Spe" AND co.CategoryID=ca.id WHERE m.valid=1 AND ca.state=1 AND ca.Class="Developer" I wish I could be helpful and remember the link where I read about sorting SQL statements, about a week ago, but I can't remember it or find it on W3schools.com right now. The closest I could find is ORDER BY, but that isn't it. This post has been edited by wgabrie: Nov 26 2010, 01:41 PM |
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