title: divide sql server table int chunks
body: <p>using sql server 2008</p>
  
  <p>I would like to take a table that has 11 million records and divide them into chunks of 50000 each while maintaining the original table and just making sure each chunk contains unique records.
  If I select top 50000 records for the first batch, how can I guarantee I get the next 50000 and so on.</p>