‘ORA-19909: datafile 1 belongs to an orphan incarnation’ during duplicate for standby

Some time ago my colleague Pavel Tolstorukov asked me for help with failing DUPLICATE TARGET DATABASE FOR STANDBY FROM ACTIVE DATABASE. The problem appeared during the recovery phase.

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Cross-endian Oracle migration – moving user data – part II

In my previous post I shared some findings on migrating user and application data between platforms with different endianness, focusing on problems with reducing downtime.

Today I’ll talk more about the complexity of chosen method. It’s not only about complexity per se, it’s rather about the possibility to automate as much as possible in order to allow efficient migration of a big number of databases.

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