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Hello,
To switch to LOCAL database, you just go to
File->Database Settings and change "Data SOURCE" to "(local
database)".
But that means that you are NOT using FastTrack as data
source.
You can *not* have both,
i.e. using FastTrack as a data source and having database
WRITE ability, because
access to FastTrack database is READ ONLY.
The only exceptions are COMPOSITES (and any symbol marked as
"use local database only"
in the Information window) - they are NOT present in external
database and
are always saved locally.
It was explained in the docs I pointed
previously:
Best
regards,
Tomasz Janeczko
amibroker.com
----- Original Message -----
Sent: Tuesday, July 08, 2008 1:46
PM
Subject: [amibroker] More on Database
Structure and Local Storage
Can someone explain to me
how I make the FastTrack database a local one?
Background: I have had a
FT db for years, with local storage disabled? I want to write to the OI
field and preserve the written data. I checked "Enable Local Storage" but
nothing different happened.
Next, I tried to scan all
symbols with a simple formula (I remembered having to do that years ago with a
TC2000 database that came on a CD--I thought the same kind of step was
needed.). Amibroker got hung on a single symbol and I had to End
Program. AB would lock if I even clicked on this same
symbol.
Next, I created a new
FastTrack database with a different name and copied over the appropriate files
to the new DB folder. I enabled Local Storage from the start. All looked
good. Except that writes to the OI field in the new DB would not
save. I tried the scan all symbols trick again, and again it hung on the
same symbol, certainly suggesting my FastTrack data itself is corrupt on that
one symbol. (Special updates with the FastTrack data designed to correct
problems did not seem to change anything.)
My question is how do I
get the FastTrack database to be local and to allow writes to the OI field to
stick?
My second question (as I
assume I have to have the data in the Amibroker folders and not just in the
FastTrack folders for the AB DB to be local), is how do I update the nightly
downloads of new data which FastTrack will stick in their own
file/folder?
Thomasz, can you
help?
Thanks,
Ken
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