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[amibroker] More on Database Structure and Local Storage


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  • Subject: [amibroker] More on Database Structure and Local Storage
  • From: "Ken Close" <ken45140@xxxxxxxxx>
  • Date: Tue, 8 Jul 2008 07:46:27 -0400
  • Authentication-results: gwout2 smtp.user=ksclose; auth=pass (LOGIN)

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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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