Hey Dave,
My first comment when I started this thread was "another great
controversy" (smile). No question but what HC had its limitations.
Without CompileIt I would have been real discouraged back then; but
as the machines got faster, particularly with my externals written in
native HyperTalk and compiled with CompileIt, I was able to do some
pretty great things. At least my clients were happy. (most of the
time). These really weren't the issues that I hoped would - and DID -
surface on this great list. I'd try a summary at this point, but
doubt that I would do most of it real justice. AND if I just had the
time. Besides, Richard did a pretty darned good job of that already.
Thanks to each and everyone of you who contributed to this Q&A about
Data Bases. I think it has been very valuable; whether or not it has
changed any minds. It has certainly given me some ideas and
approaches that would not have had otherwise. Fortunately, for the
kinds of things I, personally, will be doing, I will find Rev's
capabilities more than adequate, as will most of Rev's users.
Joe Wilkins
On May 30, 2007, at 8:42 AM, Dave Cragg wrote:
On 30 May 2007, at 04:57, Joe Lewis Wilkins wrote:
Jesse,
In case you don't know. HyperCard was written by a genius in
assembly language. Here I'm going to make an assumption (with all
of the known dangers of doing so), Rev was written by a "good"
programmer; probably in a high or higher level language. Big
difference. Then Rev has to do so much more as well.
You're courting controversy here, Joe. :-)
As others have mentioned, Metacard was written to be RAM-based. One
advantage is that most things are much faster than Hypercard. The
downside is that for large data storage, some kind of external
storage is needed.
One of the first tasks I ever tried to do in Hypercard was create a
"word frequency" routine that counted the number of occurrences of
separate words in a large text file. (1MB +) It was so slow that I
took the trouble to learn C so that I could make an external. Years
later, when I first used Metacard, I could use the "repeat for
each" routine to do it as fast as the external. I know who I
thought was the genius at the time. :-)
Cheers
Dave
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