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Thanks for the reply. Sadly, it isn't always easy to find something
in the forum posts using a search. I tried many search arguments and
never ran across the post you referenced, or any other post that
answered the question.
Barry
--- In amibroker@xxxxxxxxxxxxxxx, "Tomasz Janeczko" <groups@xxx>
wrote:
>
> Hello,
>
> Actually posts on the same subject were replied many times in the
past.
>
>
> Last time similar thread was in September 2007
> http://finance.groups.yahoo.com/group/amibroker/message/115085
>
> Short answer: yes "number of bars" setting in the Database Settings
> specify maximum number of bars that are fed through the plugin to
the AB database.
>
> While AB does not have any hard coded limit, and you can have any
length of
> data in off-line databases, it uses this setting to avoid
> growing real-time databases beyond certain point to make sure the
performance is good.
>
> So:
> 1. you can import unlimited number of bars into off-line databases
(only computer's memory is the limit)
> 2. on-line real-time databases use the user-definable limit in the
Database Settings, it works FIFO-way.
>
> Best regards,
> Tomasz Janeczko
> amibroker.com
> ----- Original Message -----
> From: "Barry Scarborough" <razzbarry@xxx>
> To: <amibroker@xxxxxxxxxxxxxxx>
> Sent: Tuesday, February 12, 2008 5:26 AM
> Subject: [amibroker] Re: Is database limited by the number of bars
in database setting?
>
>
> > Yea good luck! It must be a secret. I have the same problem and
asked
> > why about 5 times and no one ever answered why. I hope you get an
> > answer because I would really like to know why too. I keep
importing
> > data from back up files and it keeps going poof. I have a 320 gig
HD so
> > space isn't a problem. Keeping the data around is a problem. I
had
> > imported data for qqqq back to 2/14/07 in January and I just
looked at
> > it and it now starts in June. I'll be interested in the reply you
get.
> > Cheers,
> > Barry
> >
> > --- In amibroker@xxxxxxxxxxxxxxx, "wonet2001" <wonet2001@> wrote:
> >>
> >> it's a intraday 1 minute database with IB datafeed, the number
of
> > bars
> >> in database setting is 30,000, I noticed that the database is
limited
> >> to 30000 bars no matter how long I have accumulated data, my
purpose
> > is
> >> to accumulate more than six months data for backtesting, but
seems I
> >> keep loosing old data as time goes by.
> >>
> >> what is the solution? should I make the number of bars bigger,
say
> >> 500,000? will it affect the performance of AB for my intraday
trading?
> >>
> >> thanks
> >>
> >
> >
> >
> >
> > Please note that this group is for discussion between users only.
> >
> > To get support from AmiBroker please send an e-mail directly to
> > SUPPORT {at} amibroker.com
> >
> > For NEW RELEASE ANNOUNCEMENTS and other news always check DEVLOG:
> > http://www.amibroker.com/devlog/
> >
> > For other support material please check also:
> > http://www.amibroker.com/support.html
> >
> > Yahoo! Groups Links
> >
> >
> >
>
Please note that this group is for discussion between users only.
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