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Oracle Database 12c

Oracle Data Redaction in Oracle Database 12c

Data Redaction provides a way to define masking policies for an application. Oracle Data Redaction provides functionality to mask (redact) data that is returned from user SELECT queries. The masking takes place in real time. The difference between Oracle Data Masking and Data Redaction is that Data Redaction doesn’t alter underlying data in the database; it […]

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Fix for ORA-03113: end-of-file on communication channel

Oracle Database Server 12c Here is how to fix ORA-03113: end-of-file on communication channel Cause: I issued shutdown immediate command in a running database instance. The database was busy and it took ages to shut it down. I was impatient and I did kill a virtual machine server. After virtual machine restart, the database did not start any more, throwing ORA-03113 […]

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Upgrade Oracle Database 12c with ASM 12.1.0.1 to 12.1.0.2

In previous tutorial of this topic, we covered installation of Oracle Database 12c R1 on Linux 6 with ASM version 12.1.0.1.0. Now it’s the time to upgrade our database to version  12.1.0.2.0 which introduces long awaited “In-Memory Aggregation” and “In-Memory Column store” features. There is obviously much more – full description of Oracle Database 12c R1 (12.1.0.2) New […]

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