Library /sys$common/syshlp/basichelp.hlb UPDATE  *Conan The Librarian (sorry for the slow response - running on an old VAX)

  The UPDATE statement replaces a record in a file with a  record  in  the
  record  buffer.  UPDATE is valid only on RMS relative and indexed files,
  and on fixed-length RMS sequential files on disk.

  Example

  UPDATE #4%, COUNT 32%

  Additional Information (explode) :

• Syntax