title: Usage of FIND_IN_SET in query
body: <pre><code>  $query=$this-&gt;db
  -&gt;select(a.date,group_concat(s.name)
  -&gt;from("tbl_attendance a,tbl_students s") 
  -&gt;WHERE ("FIND_IN_SET(s.student_id, a.attendance)")-&gt;group_by("a.date")
  -&gt;get();
  </code></pre>
  
  <p>I wanted to know whether I have used the FIND_IN_SET and group_by functions correctly. Thanks in advance</p>