Re: [amibroker] Easiest way to delete large number of quotes

[NIFTY PLAYER <nifty46@xxxxxxxxx>]

hello dclayw, same problem heare, but i wants to keep only one mounth intra day data and balance eod data, because in my database near 200 scrips and i hold 2 years tick data and 10 years eod data in my database, please discuss what is the easyest way to remove unwanted old intraday data  without delete full data or delete a scrip, also discuss is any way we convert all tick data into hourly data,because its not posible for everyone to backfil last 30 day intraday data, eod backfill no problem, i think a AFL can solve this problem , which can scan all data and choose 30 day intraday data and balance eod or hourly data ,then we use export and import all scrip in AA, with regards nifty46

--- On Tue, 3/17/09, dclayw <dclayw@xxxxxxxxxxxxxx> wrote:

From: dclayw <dclayw@xxxxxxxxxxxxxx>
Subject: [amibroker] Easiest way to delete large number of quotes
To: amibroker@xxxxxxxxxxxxxxx
Date: Tuesday, March 17, 2009, 11:14 PM

I have 12 symbols in my database with intraday quotes going back beyond 12 months. I really only want to maintan about 1 months worth of data for each symbol. What is the easiest way to remove these quotes? Quote editor takes too long and in fact does not work because it hangs Amibroker.

Actually probably the best way to handle this is to remove all quotes for all symbols and then just use 30 day backfill to maintain one months worth of data. So what's the easiest way to remove all quotes from the database (I don't want to have to recreate the symbols)

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