title: Export data from database
body: <p>I have few tables in database that are having huge amount of data. My need is </p>
  
  <p>1 : To query data exist for more than one year.</p>
  
  <p>2 : Export and archive them to some file.</p>
  
  <p>3 : At any point of time I can insert those data back to database.</p>
  
  <p>The data may or may not contain COMMA, so not sure if I should export them to csv format.</p>
  
  <p><strong>Which is the best file format I should go for ??</strong></p>
  
  <p><strong>What should be the file size limitation here ??</strong></p>