Message-ID: <47A455630022EF9E@mtacsbs.csbs.jcyl.es> (added by postmaster@jcyl.es)
Date: 2008-09-22T11:00:30Z
From: José E. Lozano
Subject: Manage huge database
In-Reply-To: <d8ad40b50809220353g5f0e2ac2sfb06e6de903aeec5@mail.gmail.com>
> So is each line just ACCGTATAT etc etc?
Exacty, A_G, A_A, G_G and the such.
> If you have fixed width fields in a file, so that every line is the
> same length, then you can use random access methods to get to a
> particular value - just multiply the line length by the row number you
Nice hint! I didn?t think on this. But I fear that if I have missing values
on the file I wont be able to read the right information...
> When doing this, it's a good idea to test your dataset first to make
> sure the lines and fields are right.
Yes, I am trying to figure out if all the lines have the exact same lenght
to use a random access method to read it.
Thanks,
Jose Lozano