Re: merge command
- From: "Richard Stevenson" <rstevenson@xxxxxxxxxxxxxx>
- To: <oracle-l@xxxxxxxxxxxxx>
- Date: Thu, 6 May 2004 17:14:12 -0400
Rachel,
I second the matviews option. We've used them extensively to populate sub-sets
of a production meta data repository to a data warehouse and partner database.
Along with package-wrapped auto-updates (via dbms_jobs/dbms_snapshot/refresh),
they work like a charm. This, BTW, is in 8.1.7. Also, if the source db goes
down, the job resubs itself - or of course you can handle it programmatically
to alert.
Richard.
Richard J Stevenson
CobbleSoft International Ltd.
www.cobblesoft.com
US/Can Toll-Free: 1-866-380-6716
International: +1 315 548 5810
----- Original Message -----
From: Goulet, Dick
To: oracle-l@xxxxxxxxxxxxx
Sent: May 06, 2004 14:27
Subject: RE: merge command
Rachel,
Why not use a materialized view??
Dick Goulet
Senior Oracle DBA
Oracle Certified 8i DBA
-----Original Message-----
From: Rachel Carmichael [mailto:wisernet100@xxxxxxxxx]
Sent: Thursday, May 06, 2004 2:02 PM
To: freelists oracle-l
Subject: merge command
I'm testing an update process using MERGE. For reasons too complicated
to go into (can you say "corporate politics"?) I have a login app in
one database and the "real" admin users tables in another database. The
users don't want to use database links to read the admin table
real-time, they worry about the possibility of one database being down
for maintenance and hanging up the second app. So I've got copies of
the real tables in the login database.
Clear as mud so far?
Now I have to update the tables in the login database with the real
data on a regular basis. I *could* set up replication, but these are
tiny tiny TINY tables (I might have 34 rows in the largest one) and
it's just not worth the effort.
So I thought, use a database link to get the real data and use MERGE to
get the data in. I get to play with a new command I've never used and
pretend to be a real 9i DBA. First run through, so it should all be
the INSERT part of the MERGE command.
Works like a charm on the 5 row table.
I keep getting "end of file on communication channel" on the 34 row
table. This happens within 5 seconds of hitting enter.
9.2.0.2 on Sun Solaris. For testing purposes, I'm actually linking back
into the same database, different schema, via a dblink.=20
=20
I've looked at Metalink, the docs and even a bit into Tom Kyte's site
(thanks Paul).... nothing.
Any suggestions on where I should look next?
I *could* just truncate and reload but the users are paranoid about the
truncate happening and then not being able to reload and being left
with no admin data
Rachel
=09
=09
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