Please guide me.

Hello,
I have install postgresql on Redhat AS 4.Now we want to migrate data from oracle 8i to postgresql 8.1 and want to create snapshots , materialized view,dblink,taking online backup,logical backup and establish replication between three production server.Plz tell me which documents,links and books I should follow for getting knowledge
about above mentioned activites.
rgds


Praveen Malik
Software Engineer<?xml:namespace prefix = o ns = "urn:schemas-microsoft-com:office:office" />

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