title: Case-insensitive comparison in SELECT condition
body: <p>In ABAP SQL can I ignore the case when comparing fields in the <code>WHERE</code> clause of a <code>SELECT</code>?</p>
  <pre><code>SELECT * 
  FROM some_table 
  WHERE field1 = variable1.
  </code></pre>
  <p>How can I compare <code>field1</code> to <code>variable1</code> ignoring different case?</p>