Re: [Bug-gnupedia] Storing large data elements

[Rob Scott]

er bob my mails answering your questions about the
blobs dont seem to have got thru, i sent them several
hours ago.   aah well they may turn up later.


--- Hook <address@hidden> wrote: > MySQL
can handle what it calls blobs (Binary Large
> Objects .. i.e. images,
> MP's etc), but it doesn't handle them terribly well.
>  As for raw text it's
> got quite a few options, upto 64k (IIRC) in a single
> column (i.e. field).
> Basically, a better mechanism for this is to keep
> the actual data elsewhere,
> and use the database for mets data -- location of
> the article, author,
> submission date, keywords etc.  That way you don't
> clutter up the database
> with things that it doesn't need, and can't handle
> that well anyway.
> 
> Also, be aware that using MySQL in all it's glory
> will pretty much lock you
> in to mySQL. Converting to another rdbms later will
> be somewhere between
> very hard and impossible.  Been there, looked into
> it, been unimpressed.
> 
> Paul
> 
> 
> 
> > Most databases I've come across have tended to
> deal with "large" data
> > elements by treating them specially. In effect,
> they tend to say that
> > after 256 (or some other small number) characters
> of text, and all
> > binary data, are held externally to the database,
> and the db just
> > references the external storage location.
> Depending on the
> > sophistication of the db, you may or may not get
> versioning support for
> > the external elements; usually not. I don't know
> mySQL, but I suspect
> > it does the same :-?
> >
> > This becomes a real pain for our style of
> database, where our content
> > will typically *not* fit in the database, an all
> versioning gets pushed
> > back on the programmer, and mw end up with Rob's
> "(c) hybrid" solution
> > (but with added versioning support).
> >
> > So, this is another "what's the mySQL approach?"
> query.
> >
> > /Bob Dodd
> >
> >
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