title: Oracle wm_concat query returns result set with odd characters
body: <p>My Oracle query produces the correct result set, but data is being presented with odd characters as you can see by the blocks in the picture below.</p>
  
  <p><a href="http://lh3.ggpht.com/_VSEi5_hEznA/TDtsnM9HDnI/AAAAAAAAAD8/zoEzbEaKB9s/blocks.jpg" rel="nofollow noreferrer">alt text http://lh3.ggpht.com/_VSEi5_hEznA/TDtsnM9HDnI/AAAAAAAAAD8/zoEzbEaKB9s/blocks.jpg</a></p>
  
  <p>Any reason that you can think of as to why it would do this and what these characters actually are? Below is the query I'm using. Thanks in advance.</p>
  
  <pre><code>SELECT wmsys.wm_concat(userFirstName) AS firstNames
    FROM   COURSESECTION
    JOIN   CLASSCOORDINATOR on classcoord_sectionId = coursesect_sectionId
    JOIN   usr_USER on classcoord_coordinatorId = userId
  GROUP BY classcoord_sectionId;
  </code></pre>
  
  <p>If I use the same query but use a dump(wmsys.wm_concat(columnName)) then I get the data presented in the picture below. </p>
  
  <p><a href="http://lh3.ggpht.com/_VSEi5_hEznA/TDx2dle4BmI/AAAAAAAAAEM/cP6opWer-Go/concat.jpg" rel="nofollow noreferrer">alt text http://lh3.ggpht.com/_VSEi5_hEznA/TDx2dle4BmI/AAAAAAAAAEM/cP6opWer-Go/concat.jpg</a></p>