Hash.4dbase is a v15 sample database (plugin preinstalled),
v11/Hash.4dbase is a v11 sample database (plugin preinstalled).
the v15 plugin can be used in all versions above v14, including Mac 64 bits.
the v11 plugin can be used in all versions above v11, excluding Mac 64 bits.
you can go inside
Wow! This thread has yielded a wealth of information about hashes & checksums
and the issues surrounding generating and using them. David Adams’s Hash Tool
Component PDF finally gave me a good explanation about what a Hash is and
provides a good resource. I’m still a little bit foggy about
the "Generate digest" function is mainly used for hashing passwords or
relatively small documents.
http://livedoc.4d.com/4D-Language-Reference-15-R5/Tools/Generate-digest.301-2937745.en.html
still, the code
$error:=_o_AP Get file MD5 digest($path;$hash)
works in v15 (32 bits)
Hi David,
I created a feature request a few years ago
(http://forums.4d.fr/Post/EN/13706008/1/13706009#13706009) because I was in the
same situation you are and turned to php as well. Only I was doing a SHA1
instead of MD5. Anyway, the thing I was running into wasn’t a file size limit
but a
The code that was failing on the 687.6 MB file with an out of memory error
follows. In order to use the Generate digest command on a file, you have to
convert the file to a BLOB first. If I would have written it, I would have
just read in the file directly and computing the checksum as it
The docs say that Generate Digest accepts either a BLOB or a TEXT variable:
http://livedoc.4d.com/4Dv15-R5/help/Command/en/page1147.html
The docs also say that both Blobs and Text variables are limited to 2 GB - here
are the relevant excerpts:
BLOB
Depends on which version of 4D you’re talking about. There are now 64 bit
versions for Mac and Win.
Charlie
> On Oct 19, 2016, at 10:18 AM, Jeffrey Kain wrote:
>
> 4D is a 32-bit application, so it's probably somewhere shy of 2GB since you
> need to load the document
4D is a 32-bit application, so it's probably somewhere shy of 2GB since you
need to load the document into a blob in memory. How big are your files?
> On Oct 19, 2016, at 10:08 AM, David Belote wrote:
>
> What is the maximum file size that the “Generate digest”
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