Create an empty table (with a Unique key constraint) and SQL*Load them into
it?
"Hooty and the Blowfish" <bob_at_bob.com> wrote in message
news:1ks76uc3c2e36k0jrdsvs2apl2hb7q26n6_at_4ax.com...
>
> I have a group that is currently using Oracle but is considering
> moving to SQL Server to save some money. One of the business cases
> they're working with is the testing of 1 billion 11 character words
> for uniqueness. Apparently they've been sold on the idea that SQL
> Server will rock their monkey.
>
> I tend to disagree and believe that Oracle will handle this task much
> more elegantly.
>
> So that I can give this group some guidance: How would you go about
> testing uniqueness on 1 Billion 11 character words using oracle?
>
> Ideas to get you started:
> 1) Write small clients to do database inserts and distribute them
> across the network on small desktops. Run Oracle with one table, one
> column and one constraint (that it be a primary and unique key).
> Start the inserts and wait for an exception. You could play with the
> number of inserts per commit and number of boxes submitting
> connections to the database.
>
> 2) Install Oracle on 10 boxes and split the 1 Billion words into 10
> segments. Insert the numbers into the database and check for
> uniqueness. This won't prove uniqueness across the entire set so
> you'd then have to bulk insert or import all data from each Oracle
> database into one master database that checks uniqueness. Maybe this
> would be faster than checking uniqueness on every insert.
>
> 3) ??? Any other ideas?
Received on Fri Feb 08 2002 - 12:04:50 CST
