title: Will one query run faster than multiple queries, if they are deleting the same amount of records
body: <p>I have a table like this:</p>
  
  <pre><code>Table company
  companyid | companyname | owner |
  5         |coffecompany |Mike   |
  6         |juicecompany |Mike   |
  </code></pre>
  
  <p>For some reason, I need to use this:</p>
  
  <pre><code>DELETE FROM company WHERE companyid='5';
  DELETE FROM company WHERE companyid='6';
  </code></pre>
  
  <p>instead of</p>
  
  <pre><code>DELETE FROM company WHERE owner='Mike';
  </code></pre>
  
  <p>But I wonder if the second choice run faster, if it does, will it run much faster? In the future, I may have to use it to delete a large amount of records, so I really need to know.</p>