title: Get the LENGTH of a LONG RAW
body: <p>I have a table with a column of data type <code>LONG RAW</code>. How do I determine the size (in bytes) of the data in this column?</p>
  
  <p>If I call the <code>LENGTH</code> function on it, it raises <code>ORA-00932: inconsistent datatypes: expected NUMBER got LONG BINARY</code>.</p>
  
  <p>Just in case you think it: <code>UTL_RAW.LENGTH</code> raises <code>ORA-00997: illegal use of LONG datatype</code> :)</p>
  
  <p>(Yes, I know <code>LONG RAW</code> is deprecated - the question came up due to some old software that might require it)</p>