title: Why see -0,000000000000001 in access query?
body: <p>I have an sql:</p>
  
  <pre><code>SELECT Sum(Field1), Sum(Field2), Sum(Field1)+Sum(Field2)
  FROM Table
  GROUP BY DateField
  HAVING Sum(Field1)+Sum(Field2)&lt;&gt;0;
  </code></pre>
  
  <p>Problem is sometimes Sum of field1 and field2 is value like: 9.5-10.3 and the result is -0,800000000000001. Could anybody explain why this happens and how to solve it?</p>