doulei8861 2013-10-17 12:50
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基于concat列表的mysql命令

I have 2 tables:

  • products
  • attributes

products.product_attributes contains a concat list of all the attribute identifiers related to this product. But my problem is with the ordering, the concat list contains all of the identifers in a manually specified order, but this has no effect on the order of the results.

How can I use a concat list to identify the order?

Query example:

SELECT * FROM attributes WHERE attribute_id IN(products.product_attributes)
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  • drjmrg8766 2013-10-17 12:56
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    Thanks to @Raymond Nijland, less hacky solution:

       SELECT DISTINCT attributes.* FROM attributes, products 
        WHERE EXISTS(SELECT 1 FROM products WHERE 
        FIND_IN_SET(attribute_id, product_attributes) IS NOT NULL);
    
    本回答被题主选为最佳回答 , 对您是否有帮助呢?
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