title: Can relational database scale horizontally
body: <p>After some googling I have found:</p>
  
  <p>Note from <a href="http://www.mysql.com/products/cluster/scalability.html" rel="noreferrer">mysql docs</a>:</p>
  
  <blockquote>
    <p>MySQL Cluster automatically shards (partitions) tables across nodes,
    enabling databases to scale horizontally on low cost, commodity
    hardware to serve read and write-intensive workloads, accessed both
    from SQL and directly via NoSQL APIs.</p>
  </blockquote>
  
  <p>Can relational database be horizontal scaling? Will it be somehow based on NoSQL database?</p>
  
  <p>Do someone have any real world example?</p>
  
  <p>How can I manage sql requests, transactions, and so on in such database?</p>