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In a DataGuard environment, by default, the password of the SYS user is used to authenticate redo transport sessions when a password file is used. But for security reasons you might not want to use such a high privileged user only for the redo transmission...

Fast-Start Failover is supported with Maximum Protection in 12cR2. Also Multiple Observers can now monitor the same Data Guard Configuration simultaneously. I will show both in this article. Starting with a (Multitenant) Primary in Maximum Protection...

One of the problems I have seen when deploying Data Guard for systems such as RAC One Node and policy managed databases was the static listener configuration you needed in 11.2. This has changed with 12c for the better if you are using Grid Infrastructure...

In Part 1, I have outlined a few (my pick) 12cR2 new features useful for Developers and DBAs. In the part 2, I am going to discuss a few more new features. Read/Write and Read-Only Instances Read-write and read-only database instances of the same primary...

Part of my work on Redis is reading blog posts, forum messages, and the twitter time line for the "Redis" search. It is very important for a developer to have a feeling about what the community of users, and the community of non users, think about the...