title: Query table with german Umlaut in column name
body: <p>I have a table which contains a column that has a German umlaut in its name. Yes, I know this is an absolutely bad idea, but I did not create the table and can definitely not alter it, so I have to somehow deal with it.</p>
  
  <p>My problem is that my queries don't seem to work when I use this column in the <code>WHERE</code> clause.</p>
  
  <p>When I execute the following query:</p>
  
  <pre><code>SELECT t.BadUmlautColumnÄ5
  FROM myTable t;
  </code></pre>
  
  <p>everything works fine.</p>
  
  <p>But when I execute this query:</p>
  
  <pre><code>SELECT t.BadUmlautColumnÄ5
  FROM myTable t
  WHERE t.BadUmlautColumnÄ5 = '20.02.2014'
  </code></pre>
  
  <p>I simply get an empty result set. No Errors, but just no results.</p>
  
  <p>I also tried:</p>
  
  <pre><code> WHERE t."BADUMLAUTCOLUMNÄ5" = '20.02.2014'
  </code></pre>
  
  <p>But its exactly the same.</p>
  
  <p>And I know that there are entries for the value I use in the where clause, because with the query without where clause that works, I can see that there are some.</p>
  
  <p>Google wasnt really helpful on this Topic, so does anyone know how to solve this issue?</p>
  
  <p>The Column with the Umlaut is of type date, if this is somehow relevant.
  And I am on a Oracle 10g database.</p>