title: Dummies guide to locking in innodb
body: <p>The typical documentation on locking in innodb is way too confusing. I think it will be of great value to have a "dummies guide to innodb locking"</p>
  
  <p>I will start, and I will gather all responses as a wiki:</p>
  
  <ul>
  <li>The column needs to be indexed before row level locking applies. 
  
  <ul>
  <li>EXAMPLE: delete row where column1=10; will lock up the table unless column1 is indexed</li>
  </ul></li>
  </ul>