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David Hueber

David Hueber

Flying with “Air Oracle”

By | Technology Survey | One Comment

Finally after a 18 hours, doors-to-doors, journey I’m arrived in San Francisco for Oracle OpenWorld 2011. My trip started in Basel, making a stop in Paris and then an 11 hours flight to San Francisco. Even with the on-board movies this kind of flight are still quite boring, but the funny things is that I really though that I was flying with “Air Oracle“…

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David Hueber

Oracle Basics (3) – Database startup and shutdown

By | Database management | 6 Comments

It’s already quite a while that I posted my last article on the Oracle basis, so I decided to take some times in the train to continue this small serie.
This time, I’m going to speak about one of the root of Oracle administration, starting and shutting down a database.

Startup and shutdown processes within oracle databases are splitted in different steps (for startup) and modes (for shutdown) and even if these principles are quite trivial, some confusions between these steps and/or modes can easily be done. So I’m going to give a picture of both of these processes and their variations.

Before shutting any database down, it needs first to be started, so let’s begin with the startup process…

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David Hueber

NetBackup command lines – Tips

By | Hardware & Storage | 4 Comments

NetBackup provides a pretty nice Web Interface, OpsCenter, to monitor and check the basic configuration. However after working a while with it, you may find that some information can be quit boring to find out. Good news! Symantec didn’t forget that in Unix World some peoples still like working in command lines… Once connected through SSH on your NetBackup server, you will have access to a bunch of usefull tools to work with your media…

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David Hueber

Oracle Basics (1): Oracle Database vs Oracle Instance

By | Database management | 4 Comments

While beginning to work with Oracle, one of the most common confusion is between Oracle database and Oracle instance. At most of the time the term Oracle Database is used to designate the whole Oracle RDBMS architecture. However looking deeper in what is an Oracle RDBMS Server, we can see that it is compose of 2 entities, the database and the instance.

 

So lets have a look to the difference between database and instance.

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