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9.1

MYSQL query returning no results on select/join statement ?!?!

Asked by stephenmp in Databases Miscellaneous, PHP Scripting Language, PHP and Databases

Tags: MYSQL / PHP SELECTING JOIN SEARCHING

OK...  quickly.. I know what the problem is... However, I don't know how to work around it...  I'm working on an advanced search query... And I'm trying to create one query, instead of calling many and merging arrays...  

I created a join table(property_choice_join) that holds selections that a user makes... (to make it faster and easier!)  The problem is...  At no time are 2 joins stored in the same row when i combine them with this property_choice_join.property_id = property.row_id ...  <<  that joins each join row by the property_id of the join table and the row id of the property table...  I'm just trying to return properties that have a match on both 134 and 143 in the property_choice_join table...  

Is that even possible...??? I hope it is...  If not, I'll have to run 2 queries and combined the results if both queries return that property_id...  I hope u guys understand my issue... I placed the queries in the code area below...

Please help!  Thanks! 
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// do a search on pet friendly and u get& 2 results
SELECT * FROM table_main.property_choice_join, table_main.property WHERE property_choice_join.property_id = property.row_id AND property_choice_join.category_choices_join_id = '134' GROUP BY property_choice_join.property_id
 
//Do a search on non-smoking and u get& 6 results (of which 2 above are included)
SELECT * FROM table_main.property_choice_join, table_main.property WHERE property_choice_join.property_id = property.row_id  AND property_choice_join.category_choices_join_id = '143' GROUP BY property_choice_join.property_id
 
//Check both and u get nothing& 0
SELECT * FROM table_main.property_choice_join, table_main.property WHERE property_choice_join.property_id = property.row_id AND property_choice_join.category_choices_join_id = '134' AND property_choice_join.category_choices_join_id = '143' GROUP BY property_choice_join.property_id
 
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[+][-]09/27/09 08:29 AM, ID: 25434209Accepted Solution

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Zones: Databases Miscellaneous, PHP Scripting Language, PHP and Databases
Tags: MYSQL / PHP SELECTING JOIN SEARCHING
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Solution Provided By: Silhouette
Participating Experts: 1
Solution Grade: A
 
[+][-]09/27/09 09:31 AM, ID: 25434440Author Comment

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[+][-]09/27/09 10:14 AM, ID: 25434619Expert Comment

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[+][-]09/27/09 12:01 PM, ID: 25435040Author Comment

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[+][-]09/27/09 01:56 PM, ID: 25435464Expert Comment

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[+][-]09/27/09 02:31 PM, ID: 25435579Author Comment

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[+][-]09/27/09 02:57 PM, ID: 25435675Expert Comment

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