Oracle FAQ Your Portal to the Oracle Knowledge Grid

Home -> Community -> Mailing Lists -> Oracle-L -> Re: replication question

Re: replication question

From: Rahul Dandekar <>
Date: Mon, 04 Mar 2002 11:13:25 -0800
Message-ID: <>

Why not just Updateable Snapshots?

Updateable Snapshots allow users to query and update a local replicated data set even when disconnected from the master site. More relevant is the fact that... Updateable Snapshots require fewer resources than multimaster replication, while still supporting data updates.

  The way I see it ..... the question comes down to whether or not you need two way replication or just one way. If both databases can update those tables and you need them synced between the databases then Advanced Replication would be the route. If all you need are data changes from 1 database to be replicated to another database then simple replication is all you need.     -----Original Message-----
    From: Rahul Dandekar []     Sent: Monday, March 04, 2002 6:43 AM     To: Multiple recipients of list ORACLE-L     Subject: Re: replication question

    Depends on your need.
    You can have read only snapshots, updatable snapshots     or multimaster...
    Again if you think of multimaster... then you would need to make decision     based on your application requirements about sync or async

    I donot have any expereince of snapshot replication.     But, if you are planning multimaster replication, then better     spend a couple of months studying it and testing on test boxes...

    Make 100% sure that your application really needs the replication     and there is no other simpler option...

    Just 2 cents...


      Dear Gurus,
      The clients will enter records to a database all day and I will update the other database . 
      I need to replicate 10 tables in a database to other database at a specific time. 

      Do I need Advanced replication  or basic replication . ?
      How can I understand that replication is supported in my both databases. ?



Please see the official ORACLE-L FAQ:

Author: Rahul Dandekar

Fat City Network Services    -- (858) 538-5051  FAX: (858) 538-5051
San Diego, California        -- Public Internet access / Mailing Lists
To REMOVE yourself from this mailing list, send an E-Mail message to: (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 Mon Mar 04 2002 - 13:13:25 CST

Original text of this message