title: full text catalog rebuild vs full text index start full populaton
body: <p>I have a two step job running periodically in <strong>SQL Server 2012</strong>.</p>
  
  <ol>
  <li><code>ALTER FULLTEXT CATALOG [CatalogName] REBUILD</code></li>
  <li><code>ALTER FULLTEXT INDEX ON [tblname] START FULL POPULATION</code></li>
  </ol>
  
  <p>I didn't get the purpose of second step because google says that on first step itself sql server recreates catalog and generates indexes.</p>
  
  <p>I would appreciate if someone could help me in understanding what happens internally during the execution of above two steps.</p>