ZOPE IN WINDOWS, ANY WARNINGS I SHOULD KNOW? .RE: [Zope] crystal reports
Thu, 26 Jun 2003 23:43:05 +0200
Terry Hancock wrote at 2003-6-25 10:34 -0700:
> ... ZODB/FileStorags flaw ...
> 1) Its structure, being object based, is not as
> straightforward to understand ... as a relational database
It can't hardly be more complicated than "outer joins", for example ;-)
A relational database essentially supports a single data type:
a two dimensional table. The ZODB supports an openly extensible
set of data types. This might be considered "less straightforward
to understand". It definitely is not a flaw.
> 2) It lacks really good diagnostic and repair tools
> compared with real filesystems (which includes any Linux or
> DOS filesystem -- against which it compares poorly in this
They are almost unneeded because the FileStorage structure
is so trivial that almost nothing can go wrong (software errors apart).
Even a complete crash usually does not destroy it (unlike older
Unix or even the DOS file system).
> There *are* a couple of tools, but I have to
> admit I don't really know how to use them.
Can I interprete this as you did not yet felt the need to really
look into them, because your FileStorage was not yet corrupted?
> 3) On some systems (I don't think all, but I could be
> wrong) it will have a 2-gigabyte limit.
FileStorage does not have this limit.
Your Python interpreter might be compiled without large
file system support. Use one that is not.
> 4) Because there are fewer users and it is intrinsically
> more complex and it is newer, ZODB is not be as well tested
> as run-of-the-mill SQL databases.
I met more severe bugs in Oracle (8i) than in ZODB.