The PAGE clause defines the length of a logical page and the vertical
  subdivisions within which report groups are presented.

  Format -

   PAGE [ LIMIT IS   ] page-size [ LINE  ]
        [ LIMITS ARE ]           [ LINES ]

      [ HEADING heading-line ]

      [ FIRST DETAIL first-detail-line ]

      [ LAST DETAIL last-detail-line ]

      [ FOOTING footing-line ]

1 - page-size

  is a one- to three-digit integer.  It defines the number of lines
  available on a logical page.

2 - heading-line

  is a one- to three-digit integer.  It defines the first line number
  for a REPORT HEADING or PAGE HEADING report group on the logical
  page.

3 - first-detail-line

  is a one- to three-digit integer.  It defines the first line number
  for a CONTROL HEADING, DETAIL, and CONTROL FOOTING report group on
  the logical page.

4 - last-detail-line

  is a one- to three-digit integer.  It defines the last line number
  for a CONTROL HEADING or DETAIL report group on the logical page.

5 - footing-line

  is a one- to three-digit integer.  It defines the last line number
  for a CONTROL FOOTING report group and the first line number for the
  PAGE FOOTING report group on the logical page.