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No...no...Nick, the automated script won't delete the ticker filename
that is stored in certain AB directories, instead, the script would
utilize AB (will automatically open AB) and call the import function
(OLE automation) and refresh the current data with new data, this
way, any other information won't be lost (studies). Layout directory
won't be touched either.
This full refresh function would probably be done once a week (can be
adjusted) and daily refresh would only be getting daily data instead
of full refresh.
Eventually when AB is closed (all neccessary process is done - AB
Scans or whatever), another utility/small app. would check if there
is any files that need to be deleted by comparing the full list of
tickers (most likely in a plain text file) with files that are
located in AB database. This utility might be optional though, since
keeping old AB files won't probably hurt too much. (These days hard-
drive cost is getting cheaper and cheaper, and the size is getting
bigger and bigger, and AB database for each ticker is miniscule even
if it had 10-year eod data).
Gary.
--- In amibroker@xxxxxxxxxxxxxxx, Nick Busigin <nick@xxx> wrote:
>
> On Thu, 12 Apr 2007, Gary wrote:
>
> > This is a good start, I will start this little project soon
then...
> > My goal would be: the data would be just like the way I am doing
now,
> > all the scans are done and the database would have all eod data
from
> > yesterday when I look at charts. I just need to go through a
short
> > list of stocks as the results of automated scans.
> > I don't really care how many stocks get deleted/added each day
> > either, if we download and refresh the database everyday then I
guess
> > we don't need to worry about this problem.
>
> There is only one problem with the approach of essentially re-
creating
> the database as I do periodically with the data that Jim so
generously
> provides - and that is any studies I have created are lost, as I
believe
> these are stored in the same files as the data is. It would be
nice to
> have a migration tool to copy them over from the old database
files.
> Alternatively, it probably wouldn't be too big a deal to write a
utility
> program that compares the old database files with the new ones and
just
> adds/deletes the changes to the existing database rather than doing
a
> complete change-over. A project for when I have a little more
time.
>
> Nick
>
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