Re: LOADING DATA INTO WAREHOUSING
Posted in 1998
On 3 Sep 98, at 0:59, Tim Schaefer wrote:
> BEATRIZ ROCHA wrote:
> >
> > We have an ASCII file that is currently 4GB that has to be loaded into
> > an Informix table. The load command takes about 8 hours. I have added a
> > few things to speed up the load such as locking the table.
> >
> > Is dbload faster than load?
>
> No freakin' way!
Whoa. In loading a large table, dbload can be significantly quicker.
dbload can be set up to commit every n transactions, which can
make a big difference. Most of the performance hit with LOAD
seems to stem from handling a really long transaction.
> Read the manuals! You should definitely not be loading a 4 GB file with
> the standard loading programs such as dbload, or load. Use the HP loader,
> and save yourself some time. Depending on your system of course, the load
> shouldn't be taking 8 hours.
This, I agree with. :-)
--
Ciao,
Billy
/Group Managing Director, The West Solutions Group: http://www.west.co.za
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