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April 1999, Week 2

HP3000-L@RAVEN.UTC.EDU

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Subject:
From:
Patrick Thrapp <[log in to unmask]>
Reply To:
Patrick Thrapp <[log in to unmask]>
Date:
Wed, 7 Apr 1999 07:35:59 -0700
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text/plain (36 lines)
Drop the ;save parm.  It is not needed and when used causes dup file problem
when fcopy tries to terminate.

Patrick Thrapp wrote in message <[log in to unmask]>...
>Jerry Fochtman wrote in message ...
>[snip]
>>
>>Also, if this is a native mode KSAM file, it is better to build the file
as
>>part of the same FCOPY step to load it.  This is because when NMKsam is
>>loading a file built as a part of the same HPFOPEN, it will periodically
>>leave an open entry as it is writing the data records in the file.  In
this
>>manner, subsequent opens/writes will more quickly find open slots for new
>>entries.  If you simply BUILD the file (which HPFOPENs/FCLOSEs the file)
>and
>>then write the records, this ventilation effect is not done.
>
>
>If I were to convert the following:
>
>Build myksam;rec=-64,64,f,ascii;disc=6400;ksamxl;key=(b,1,15)
>Fcopy from=ksamdata;to=myksam
>
>To:
>
>file myksam,new;rec=-64,64,f,ascii;disc=6400;ksamxl;key=(b,1,15);save
>Fcopy from=ksamdata;to=*myksam
>
>This would enable the ventilation technique?  If more keys were defined
does
>this ventilation hold true for each key path?
>
>
>

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