title: Ecommerce database design?
body: <p>I want to do an ECommerce app. I want to add properties to categories and search them dynamicly category within properties.</p>
  
  <p>I mean:</p>
  
  <pre><code>  CATEGORIES             PROPERTIES
  | Computer properties  | MotherBoard, GraphicCart etc.
  | Phone properties     | Cam, Connecting properties, bluetoot etc.
  | Digital Camera       | Zoom option , Lcd, Battery etc.
  </code></pre>
  
  <p>I have allready done this wiht relational tables. This is the way I think:</p>
  
  <p><img src="https://i.stack.imgur.com/e7qlK.png" alt="enter image description here"></p>
  
  <p>So, my question is this way true? Or We have other way?</p>