Relational database from XML -

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i trying learn create relational database schema given xml format. format follows

 <product description:"cardigan sweater">  <catalog-item gender:"men's ">   <item-number>qwz5 67 1 </item-number>   <price>39.95</price>   <size description:"medium">    <color>red</color>    <color>burgundy</color>    </size>    <size description:" large ">     <color>red</color>     <color>burgundy</color>    <lsize>  </catalog-item>  <catalog_item gender"'women's">   <item-number>rrx9 8 5 6</item-number>   <price>42.5o</price>   <size description:"medium">    <color>red</color>    <color>navy</color>    <color>burgundy</color>    <color>black</color>   </size>   <size description:" large ">    <color>burgundy</color>    <color>black</color>   </size>  </catalog_item> </product>

any appreciated

it can translated following tables, in real world i'll define simpler structure (do have schema xml?).

table product {id_product, description} table catalogitem {id_catalogitem, id_product, gender, number, price} table catalogitemsize {id_catalogitemsize, id_catalogitem, description} table catalogitemsizecolor {id_catalogitemsizecolor, id_catalogitemsize, id_color} table color {id_color, description}

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