PAGE LENGTH IN QUIZ

[Carol Kaffenberger]

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Can anyone explain why the PAGE LENGTH variable must be set to the
maximum number of lines expected on a report PLUS 1.  While debugging a
paging problem on a duplex report I discovered this:

    The input file contains 4 records:

        HOSP-NUM                PAGE-BREAK-NUM
        7777                            1
        7777                            1
        7777                            1
        7777                            1

Notice that the fields in each record have the same values--so no
control breaks occur.

There are 2 header lines and 4 footing lines in the program.  So 6
headers & footers plus 4 data records should give me a page length of 10
and it all should fit on 1 page.  But it goes to a second page when the
PAGE LENGTH = 10:

> ACCESS *SB5063
> SET PAGE LENGTH 10
> SORTED ON HOSP-NUM, PAGE-BREAK-NUM
> PAGE HEADING &
>   TAB 01 "LINE1" &
>   SKIP 1 &
>   TAB 01 "LINE2"
> HEADING AT HOSP-NUM SKIP PAGE
> REPORT HOSP-NUM PAGE-BREAK-NUM COUNT
> FOOTING AT PAGE-BREAK-NUM &
>   SKIP 1 &
>   TAB 01 "LINE7 " &
>   SKIP 1 &
>   TAB 01 "LINE8" &
>   SKIP 1 &
>   TAB 01 "LINE9" &
>   SKIP 1 &
>   TAB 01 "LINE10"
> GO

LINE1
LINE2
  7777         1       1
  7777         1       2
  7777         1       3
  7777         1       4



?

LINE1
LINE2
LINE7
LINE8
LINE9
LINE10



?

Records selected:  4
Lines printed:     12
Pages printed:     2


So now if I take the same program and change the PAGE LENGTH to 11, it
all fits on 1 page:

> ACCESS *SB5063
> SET PAGE LENGTH 11
> SORTED ON HOSP-NUM, PAGE-BREAK-NUM
> PAGE HEADING &
>   TAB 01 "LINE1" &
>   SKIP 1 &
>   TAB 01 "LINE2"
> HEADING AT HOSP-NUM SKIP PAGE
> REPORT HOSP-NUM PAGE-BREAK-NUM COUNT
> FOOTING AT PAGE-BREAK-NUM &
>   SKIP 1 &
>   TAB 01 "LINE7 " &
>   SKIP 1 &
>   TAB 01 "LINE8" &
>   SKIP 1 &
>   TAB 01 "LINE9" &
>   SKIP 1 &
>   TAB 01 "LINE10"
> GO

LINE1
LINE2
  7777         1       1
  7777         1       2
  7777         1       3
  7777         1       4
LINE7
LINE8
LINE9
LINE10
?

Records selected:  4
Lines printed:     10
Pages printed:     1

>
What am I missing?  Is there a line reserved for carriage control or
something?  Sorry if this seems elementary, but I'm having trouble with
page footings on a duplex report and I need to understand how this
works.  Thanks in advance.

Carol
(MPE/ix 5.5 - PH 7.29.C8)


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