On May 16, 3:57 pm, singhals <[email protected]> wrote: > As of 10 am EDT on Sunday 15 May 2011, one of my databases > has 24744 persons in a 18862080M file. I think you probably mean 18MB. 18862080M is a little over 18TB which is significantly more than the disk space in the vast majority of computers. Yes, datasets of that size do exist -- I have to deal with some at work -- but they require specialists tools and large clusters of computers to handle. Richard