Hi,

yes the files are really stored inside the database. The file metadata
is represented by records in a few tables and the content itself is
stored as a long in a separate table.

The most recent 7.5 WebDAV supports basic authentication for the WebDAV
service itself. So you are able to exclude people from accessing the
WebDAV in the first place. Inside the WebDAV file system there is no
rights management implemented. The only (weak) option to limit access is
the use of locks on resources (that is on files and folders). 

Except for the rights management there are no major differences between
a "real" file system and a WebDAV file system. Inside the WebDAV file
system you are able to execute the commonly known operations (mkdir,
copy, move, delete, rename (by means of move)) further you are able to
read properties of a resource and even change or remove (self defined)
properties on a resource. You can add any metadata (property) to any
resource you like.

For the files are stored inside the database you gain all the advantages
of a RDBMS. The most important one: backup and restore. If you use a
proper backup strategy you're able to restore your files in case of a
severe (data loss involved) database crash. In case of a
no-data-affected crash of the DB you wouldn't even need a restore. You
just restart your database and that's it. You wouldn't lose your files.

If you need to link the metadata of your files with other data you could
easily do that within the database, for the necessary information on
your files is stored in tables. You could even use referential integrity
and stuff like that.

Hope that helps. Please feel free to ask if there is more you want to
know.

Cheers,
Daniel

-----Original Message-----
From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] 
Sent: Dienstag, 24. Mai 2005 10:46
To: [email protected]
Subject: Questions about Webdav

Good morning,

In a previous post I was wondering if MaxDB would be able to support
external
files locks the way IBM DB2 does. I was replied I should use Webdav to
manage
those files the way a "real" filesystem does. In testing the provided
MaxDB
Webdav support we realised the files were stored into the database.

My questions are :

- Are the files really stored into the database ?
- Excepted on the right management system what are the differences
between
storing the files into the database through Webdav and storing the files
into
the database by myself thanks to a long ? Is it more safe ? What if the
database crashes ? Would I loose all my files ?

Thanks in advance for you help.
Kind Regards, Xavier CAMIER


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