title: Normalization: What does "repeating groups" mean?
body: <p>I have read different tutorials and seen different examples of normalization, specially the notion of "repeating groups" in the first normal form. From them I have have gathered that repeating groups are "kind-of" multi-valued attributes (e.g. <a href="http://www.dreamincode.net/forums/topic/179103-relational-database-design-normalization/" rel="noreferrer">here</a> and <a href="http://www.studytonight.com/dbms/database-normalization.php" rel="noreferrer">here</a>).</p>
  
  <p>But we already make separate tables for each multi-valued attribute by including foreign keys from the parent table during the process of mapping an ERM (Entity relationship Model) to a RDM (Relational Data Model)? Reference: <a href="https://www.google.com.pk/url?sa=t&amp;rct=j&amp;q=&amp;esrc=s&amp;source=web&amp;cd=1&amp;cad=rja&amp;uact=8&amp;ved=0CCkQFjAA&amp;url=http://www.computing.dcu.ie/~mcrane/CA218/Ch4.pdf&amp;ei=Y91UU-eEEonCPOCagYAH&amp;usg=AFQjCNGZXZ8vrL82zySZALrZ2exIYPQqow&amp;sig2=fusxcFjhB7tV4vlzcH4dyg&amp;bvm=bv.65058239,d.Yms" rel="noreferrer">this</a></p>
  
  <p>Secondly, are those "repeating groups" essentially laid out horizontally in the same row, or can the same value occurring in the same column again and again, i.e. <strong>the same value of an attribute again and again, also a repeating group and should be eliminated?</strong></p>
  
  <p><img src="https://i.stack.imgur.com/My9Zj.jpg" alt="enter image description here">
  In this example, the value English is repeating again and again. Is this a repeating group? 
  If I eliminate it to make another table SUBJECT with Subject Name and Module_ID(Foreign key), this is what I get. Sure it gets rid of the repeating value, but I am not sure if this is the right thing. Is it right?
  <img src="https://i.stack.imgur.com/uoiG9.jpg" alt="enter image description here"></p>