Robyn, Putting your company's data in a database is a long-term committment. Aside from technical and financial considerations, think about: - How long is this vendor going to be around? - How easy is it to hire people who are experienced in this database? - How many books, web sites, discussion lists, training classes, etc. are available for this database? Dennis Williams On 11/6/07, MacGregor, Ian A. <ian@xxxxxxxxxxxxxxxxx> wrote: > > Yes cellular providers need database that track every call including the > ones which don't go through. Internet providers need do do the same. > > Event data from physics experiments is stored in file systems developed at > various high-energy physics sites. > > http://cerncourier.com/cws/article/cnl/24158 > > -----Original Message----- > From: oracle-l-bounce@xxxxxxxxxxxxx [mailto:oracle-l-bounce@xxxxxxxxxxxxx] > On Behalf Of ryan_gaffuri@xxxxxxxxxxx > Sent: Tuesday, November 06, 2007 7:17 AM > To: MacGregor, Ian A.; robyn.sands@xxxxxxxxx; Greg Rahn > Cc: MacGregor, Ian A.; oracle-l > Subject: Re: who's got the biggest and the fastest? > > we are creating a system to load 5 billion rows/day that is expected to be > fully deployed 3rd quarter 2008. > this is on oracle > > Verisign has a custom built database that as of february/march 2007 did 36 > billion executions/day. Its the backend DNS server for the internet. if you > go www.google.com or whatever and its not cached you hit this database. > They expect it to increase its volume by 20%/year for the indefinite future. > it is written in C and all data is completely in memory. > > I heard that Google has over 1 petabyte of memory for its search engine. > > There is an particle accelerator being built at CERN in Europe. they are > going to do an experiment sometime next year that will add 1 GB data/minute > or a second or something like that. Its a custom made system. The only way I > can think to do it is with straight serial writes and accept some data loss. > Does anyone know more about this? > > The absolute highest end systems push the edge of the technology available > and will always need to be custom built specifically for their task. > > > -------------- Original message ---------------------- > From: Ian MacGregor <ian@xxxxxxxxxxxxxxxxx> > > I know of an entity that adds 3,000,000,000 rows daily to a particular > table > > and has another which will soon surpass it. They run Oracle. > > > > Ian MacGregor > > > > > > > > > > > > > > > -- > //www.freelists.org/webpage/oracle-l > > >