11i and Dataguard

We have a customer who has a reporting database that currently is a clone of the production database, something that is done on a nightly basis.
They are looking at whether they could use Dataguard to create a reporting database which is more upto date.
Does any one have any experience of doing this? Does it work with 11i? What issues might they encounter?
Any help would be appreciated as we have been told by someone that it doesn't work although we do not know what they base their comments on.
Thanks,
Jeremy.

Jeremy,
So which datatypes are not supported by logical standby database?Logical standby databases do not support the following data types:
BFILE
Collections (including VARRAYS and nested tables)
Encrypted columns
Multimedia data types (including Spatial, Image, and Context)
ROWID, UROWID
User-defined types
XMLType
Data Type and DDL Support on a Logical Standby Database
http://download.oracle.com/docs/cd/B19306_01/server.102/b14239/data_support.htm
It may be that those datatypes are no involved with the areas that we are reporting so this might not be an issue. Any one able to identify the datatypes?Why would you go with unsupported solution? What would stop you from using physical standby database?
Regards,
Hussein

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