title: Multiple Updates and Multiple Transactions vs one Transaction
body: <p>Using MySQL, in one routine via JDBC I'm updating a great number of records (every record in the table). Each update has its own transaction. </p>
  
  <p>How much efficiency, if any, would I buy if I grouped all of the updates into one transaction?</p>
  
  <p>Are there other advantages, besides speed, to perform minimal transactions? i.e. how much overhead is there per xaction?</p>