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Hello,
Thanks for your reply, yes if you import one stocks data from another data
base, to the original corrupt, then in my experience that might not help.
I gave up and imported my trading computer data base to the back up computer
data base and the funny thing is the back up still has disappearing quotes
while the main trading does not with both using the start of the same data
base!! Two days will 'shrink' to one day on every tick and then like magic
the shrinking will stop at the 9:30 open of that particular stock. Today had
8 stocks do that, some days just 5 stocks with another 14 stocks collecting
up to 12 days of data with out problems. Have sent videos to support.
So tomorrow will start on a virgin computer data collecting then copy my
formula's over then see what happens.
If all the above is correct then I suspect something is not right in the
main program.
Regards,
Jerry
-----Original Message-----
From: amibroker@xxxxxxxxxxxxxxx [mailto:amibroker@xxxxxxxxxxxxxxx] On Behalf
Of sumangalam
Sent: Monday, June 29, 2009 4:57 AM
To: amibroker@xxxxxxxxxxxxxxx
Subject: [amibroker] Re: My Database is corrupted-Help
Hello Jerry,
One of the situaltions when a problem like the one you described,can happen
is when AmiBroker or Amiquote shuts down IMPROPERLY when a Data Import or
Data Download is in progress. I have not much of experience with AmiQuote,
however in case of AmiBroker it does seem to happen. I will my experience
with similar problem below.
In these situations we will see the Ticker files in Window Explorer, and may
be tickers in Symbol Tree in AmiBroker; however, the size of files on disk
will be around half KB. And data seems to be gone.
One solution to minimize the problem is to have a small number of Symbols
loaded at a time. It can be done via Tools > Preferences > data > "In-memory
Cache Size". It could have some other repurcusions for other usages,however
it does seem to minimize the damage in case of improper shutdown.
The problem gets worse if you update your backup with damaged files. Let's
hope Mr. Tomasz Janeczko investigates the problem further and gives some
solution. In the meantime we should have backups and take adequate
precautions before taking backups.
With Regards.
Sanjiv Bansal
--- In amibroker@xxxxxxxxxxxxxxx, "Jerry Gress" <pleasenospamplease@xxx>
wrote:
>
> Hello,
>
>
>
> Having spent the last few weeks into data base troubleshooting see
previous
> posts on disappearing charts, still not fixed, I have some thoughts!!
>
>
>
> First what version are you using? The reason is under
> help>data>troubleshooting we have (I believe) under 5.0 help and 5.26 help
> slightly different ways to look at the problem. TJ changed some file names
> thus you need the correct file name. Give that a try. I think 5.0 had a
> better way of looking for the problem.
>
>
>
> 2nd, Back up, Back up, Back up: Run two computers with your AB, I ended up
> going thru 5 different computers/data bases trying to solve my problem
> (still no joy).
>
>
>
> 3rd , If you can see the symbols under the data tree with windows explorer
> they are still there, just get Ami to see them which there are TWO ways to
> do it and one way to verify.
>
>
>
> 4th Below you said win explorer can see them but not Ami, if you start to
> change inside a data base do it on a back up and remember Ami has to start
> up again to see any changes.
>
>
>
> Hope this helps,
>
>
>
> Jerry
>
>
>
>
>
> _____
>
> From: amibroker@xxxxxxxxxxxxxxx [mailto:amibroker@xxxxxxxxxxxxxxx] On
Behalf
> Of Peggy Elijah
> Sent: Tuesday, June 23, 2009 5:40 PM
> To: amibroker@xxxxxxxxxxxxxxx
> Subject: Re: [amibroker] Re: My Database is corrupted-Help
>
>
>
>
>
>
>
>
>
> Hello gmorlosy,
>
> Yes- I have done that and check to make sure "Preferences" was looking in
> the right folder also. But, both are looking in the correct folder for the
> data. That is was is confusing me..Why can I see the tickers when I look
via
> windows explorer but Amibroker does not see the tickers (even when it
shows
> its looking in the right folder)
>
> I prefer to not re-load the database from the http://www.icc-az.com/ web
> site. Mostly do to the fact that this site does not have the yahoo indexes
(
> "^") that I use and I have many addcomposites that I created also... It
> would be better for me if I could get Amibroker to "find" the tickers that
I
> see via windows explorer.
>
> Thanks for any help.
>
>
> --- On Tue, 6/23/09, gmorlosky <gmorlosky@xxx> wrote:
>
>
> From: gmorlosky <gmorlosky@xxx>
> Subject: [amibroker] Re: My Database is corrupted-Help
> To: amibroker@xxxxxxxxxxxxxxx
> Date: Tuesday, June 23, 2009, 9:38 AM
>
> Start AmiBroker. Got to File > Open Database... make sure it is pointed to
> the same folder. Let us know.
>
> --- In amibroker@xxxxxxxxx ps.com, "cadvantag" <cadvantag@ ..> wrote:
> >
> > My database was fine over the weekend. Today, I opened amibroker and
> opened amiquote and downloaded todays quotes-just like I have done many
> times over. Now I have no ticker/quotes for any symbol pass the letter
"P".
> >
> > I go to windows explorer>My Computer> C Drive>Program Files>
> Amibroker>Data> US Stocks
> >
> > And I can see my missing Indexes and Stock tickers...
> >
> > Why is Amibroker unable to find them? Why did it happen?
> >
> > How do I fix this?
> >
> > Thanks,
> > Brian
> >
>
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