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7 Replies Latest reply: Jan 17, 2013 3:21 PM by dpapde RSS

Streams or Logical Standby?

Chuck1958 Newbie
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I have a requirement to duplicate an Oracle DB over a WAN to a remote site. The data in that copy of the DB (along with many other databases of various platforms) will then be aggregated into a SQL Server database for reporting purposes.

The requirements are:
- there can be no noticeable performance impact on the primary DB
- the secondary DB must be as close to in sync with the primary as possible (i.e. little or no lag)
- the secondary DB must be readable at all times (precludes max performance physical standby)

Current configuration
- the primary is an RAC database.
- there is already a physical standby at the remote site for DR purposes operating in maximum performance mode and using standby logs. It rarely falls more than 2-3 seconds behind the primary. If this server could be leveraged that would be great, but obviously a physical standby cannot be both readable and up to date.



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