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Also remember that replication required:
Yechiel Adar
Mehish
----- Original Message -----
To: Multiple recipients of list ORACLE-L <ORACLE-L_at_fatcity.com>
Sent: Friday, May 16, 2003 3:16 PM
> Dennis
>
> Thanks for the reply.
> The volume can be very different. We are dealing with property records and
> someone may want to dump records from a street, subdivision, city,
> province/state, etc.
>
> At this point I am starting some R&D looking at what can be done so any
tip
> is helpful.
>
> Thanks
>
> Witold
>
>
> -----Original Message-----
> WILLIAMS
> Sent: 15 May 2003 9:22 PM
> To: Multiple recipients of list ORACLE-L
>
>
> Witold - You don't say how much data is involved, but have you considered
> transportable tablespaces?
>
>
>
> Dennis Williams
> DBA, 80%OCP, 100% DBA
> Lifetouch, Inc.
> dwilliams_at_lifetouch.com
>
> -----Original Message-----
> Sent: Thursday, May 15, 2003 10:59 AM
> To: Multiple recipients of list ORACLE-L
>
>
> Thanks for the replies.
> The resultsets can be large and include data from many tables. I thought
> about inserting/updating through database links because I would know which
> tables are involved.
>
> I think exporting the data to the local DB will not be a problem but
merging
> the changes is the bigger issue. For example there may be 10000 records
> exported to the local DB and only three of them changed. Obviously I want
to
> merge the three records only. If I compared the local resultset with the
> master DB, there would be a lot of operations over the database links and
> probably the performance would be bad.
> I could have some kind of transaction log/audit on the master DB that
would
> store keys of the records that have changed and merge only these.
>
> But there is huge functionality with fast algorithms already built into
> Oracle so I wonder if I can use something for the task.
>
> Witold
>
>
> -----Original Message-----
> Paula_Stankus_at_doh.state.fl.us
> Sent: 14 May 2003 6:42 PM
> To: Multiple recipients of list ORACLE-L
>
>
>
> Large PL/SQL operations over a database link have always seemed
> problemmatic. What if you were to do a CTAS unrecoverable, parallel to
read
> the local table back into the MAIN database then processed with PL/SQL
into
> the "MAIN" table?
>
> Oracle OCP DBA
>
>
> -----Original Message-----
> Sent: Wednesday, May 14, 2003 4:02 PM
> To: Multiple recipients of list ORACLE-L
>
>
> You could use relication but it's not absolutely necessary. You could do
> something like this
>
> On Server:
> Run a query: SELECT * FROM MAINTAB
> If they like it, issue INSERT INTO LOCALTAB_at_LOCALMACHINE SELECT * FROM
> MAINTAB;
> OR From the local machine : INSERT /*+ APPEND */ INTO LOCALTAB SELECT *
FROM
>
> MAINTAB;
> When done with the edits, you can merge with the main table. If the
changes
> are exclusively done by a single user, you could
> - delete the records from MAINTAB
> - and, insert /*+ APPEND */ into MAINTAB select * from
> LOCALTAB_at_LOCALMACHINE.
> If that's not possible, use a simple PL/SQL block to read the localtab and
> insert/update/delete the MAINTAB.
>
> This operation will be much simpler than replication.
>
> HTH.
>
> Arup Nanda
> www.proligence.com
>
> ----- Original Message -----
> To: "Multiple recipients of list ORACLE-L" <ORACLE-L_at_fatcity.com>
> Sent: Wednesday, May 14, 2003 3:11 PM
>
>
> > Hello DBAs
> >
> > I am going to experiment with copying subset of data to another database
> and
> > merging changes. In short I need the user to run a query against the
> master
> > database, copy the resultset to their local database, do whatever they
> need
> > and later merge the changes in their local DB to the master DB.
> > It looks like replication is the technology to look into. Is there
> anything
> > else in the big Oracle world?
> >
> > Thanks
> >
> > Witold
> >
> > --
> > Please see the official ORACLE-L FAQ: http://www.orafaq.net
> <http://www.orafaq.net>
> > --
> > Author: Witold Iwaniec
> > INET: wiwaniec_at_novalistech.com
> >
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> --
> Please see the official ORACLE-L FAQ: http://www.orafaq.net
> <http://www.orafaq.net>
> --
> Author: Arup Nanda
> INET: orarup_at_hotmail.com
>
> Fat City Network Services -- 858-538-5051 http://www.fatcity.com
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> --
> Please see the official ORACLE-L FAQ: http://www.orafaq.net
> --
> Author: DENNIS WILLIAMS
> INET: DWILLIAMS_at_LIFETOUCH.COM
>
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> --
> Please see the official ORACLE-L FAQ: http://www.orafaq.net
> --
> Author: Witold Iwaniec
> INET: wiwaniec_at_novalistech.com
>
> Fat City Network Services -- 858-538-5051 http://www.fatcity.com
> San Diego, California -- Mailing list and web hosting services
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-- Please see the official ORACLE-L FAQ: http://www.orafaq.net -- Author: Yechiel Adar INET: adar76_at_inter.net.il Fat City Network Services -- 858-538-5051 http://www.fatcity.com San Diego, California -- Mailing list and web hosting services --------------------------------------------------------------------- To REMOVE yourself from this mailing list, send an E-Mail message to: ListGuru_at_fatcity.com (note EXACT spelling of 'ListGuru') and in the message BODY, include a line containing: UNSUB ORACLE-L (or the name of mailing list you want to be removed from). You may also send the HELP command for other information (like subscribing).Received on Wed May 21 2003 - 10:32:06 CDT