title: sp_OAMethod 'OpenTextFile' clarification
body: <p>I can seem to find an answer to this even on Microsoft sites I am using this:</p>
  
  <pre><code>EXECUTE @RetCode = sp_OAMethod @FileSystem, 
   'OpenTextFile',
   @FileHandle OUTPUT,
   @FilePath,
   8,
   1
  </code></pre>
  
  <p>I would like to know what the finale int parameter (1) does and what other options there are for this. I experimented and used 2 but did not see any difference.</p>
  
  <p>I know that the second last int parameter (8) specifies an append vs using 2 a write but do not know of other values for this parameter either.</p>