title: SELECT a FROM T + Select b from T, or SELECT a,b FROM T? H2 Database
body: <p>Which one is faster using the H2 database?</p>
  
  <pre><code>SELECT a FROM T 
   and after 
  Select b from T 
  </code></pre>
  
  <p>or</p>
  
  <pre><code>SELECT a,b FROM T
  </code></pre>