Ramon F Herrera wrote:
> Daniel Morgan <damorgan_at_x.washington.edu> wrote in message
>
>>How much data are we talking about and in what version of Oracle?
>
>
> Oracle is 9iR2, soon to be moved to 10g.
>
> The input file.dat is 1.1 GB, containing 15 million records.
> However, after SQL*Loading the data, there are only
> 115,000 unique records, and each one of them is the FIRST
> that was seen by sqldr, which may be obsolete. I'd like to
> have every repeated record overwrite the previous one
> (they are loaded in chronological order) and in that way
> I will end up with the most up-to-date info about every
> employee.
>
> TIA,
>
> -Ramon
Blow it all into a single table with no constraints using a direct
path load and then run a stored procedure to move it to its final
destination using the MERGE statement.
--
Daniel Morgan
http://www.outreach.washington.edu/ext/certificates/oad/oad_crs.asp
http://www.outreach.washington.edu/ext/certificates/aoa/aoa_crs.asp
damorgan_at_x.washington.edu
(replace 'x' with a 'u' to reply)
Received on Wed Mar 10 2004 - 09:10:11 CST
