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POBest way to structure pricing matrix in MySQL?
 

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  1. POBest way to structure pricing matrix in MySQL?
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    <p>I am working on a site where a user can:</p> <ol> <li>Choose a product (window blinds)</li> <li>Choose a color (there are 3 groups of colors - A, B and C. The price depends on the color)</li> <li>Enter the size of the blind (in cm).</li> </ol> <p>When the user has entered the size and clicks enter, an ajax call will be fired to a PHP script that executes a query, looking into the database and finds the appropriate price.</p> <p>The sizes are in increments of 10cm. So like 100, 110, 120, 130 etc. So if the user writes 115, it would automatically choose 120 as the appropriate size/price (it will always round up).</p> <p>I have made this structure, but want to know if you have any ideas where I can optimize it to be faster/better.</p> <pre><code>products | id | SKU | name | category | 1 | 010101 | Window Blind 1 | Blinds | 2 | 020202 | Window Blind 2 | Blinds pricing_colors | id | group | color | 1 | A | Red | 2 | B | Green | 3 | C | Blue | 4 | D | White product_colors | id | sku | color_id | 1 | 010101 | 1 | 2 | 010101 | 2 | 2 | 020202 | 1 | 2 | 020202 | 3 pricing_matrix | id | sku | color_group | width | height | price | 1 | 010101 | A | 100 | 100 | 50 | 2 | 010101 | A | 110 | 100 | 55 | 3 | 010101 | A | 120 | 100 | 60 | 4 | 010101 | A | 100 | 110 | 53 | 5 | 010101 | A | 100 | 120 | 56 | 6 | 010101 | B | 100 | 100 | 60 | 7 | 010101 | B | 110 | 100 | 65 | 8 | 010101 | B | 120 | 100 | 70 | 9 | 010101 | B | 100 | 110 | 63 | 20 | 010101 | B | 100 | 120 | 66 </code></pre> <p>As you can see, the pricing_matrix table will be very large. As it will have all the widths and height for each of the 3 color groups in all width/height increments.</p> <p>Have thought about the following query to find the appropriate price:</p> <pre><code>SELECT price FROM pricing_matrix WHERE height &gt;= ... AND width &gt;= .... AND sku = .... AND color_group = 'A' ORDER BY height,width ASC </code></pre> <p>Please come with suggestions to how I can improve it! :)</p>
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    1. COadd primary key details to your schema
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      1. POBest way to structure pricing matrix in MySQL?
      1. USarunmoezhi
    2. COWhere should I add the primary keys?
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      1. POBest way to structure pricing matrix in MySQL?
      1. USElias
    3. COIs that demo data, or is the SKU constant? If it's the same SKU for all colours/sizes then you should probably not have it in the link tables, instead using just the PK of that table - the product_id
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      1. POBest way to structure pricing matrix in MySQL?
      1. USSimon at mso.net
 

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