title: SQL: Display multiple record values in one field from a subquery
body: <p>I have an SQL LIKE:</p>
  
  <pre><code>SELECT S.*, 
     (SELECT I.NAME FROM institution I, inst_map IM 
             WHERE IM.STUDENT = S.ID AND IM.INSTITUTION = I.ID) as INSTITUTIONS 
  FROM student S
  </code></pre>
  
  <p>In this case it is possible for my subquery to return multiple records (I will get an error: <code>Subquery returns more than 1 row</code>).</p>
  
  <p>How to show those multiple values from my subquery in one field (in my case <code>INSTITUTIONS</code> ) separated by commas?</p>
  
  <p>All ideas are welcome.</p>