August 2012 archive

Aug 30

DB Control Nearing Its Death

On August 20th, Oracle published Note 1484775.1 Database Control To Be Desupported in DB Releases after 11.2. If you use Enterprise Manager to manage and monitor your Oracle databases, you have two options, DB Control and Grid/Cloud Control. DB Control is easy to set up but only interacts with one Oracle database. If you have …

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Aug 22

Fun With Messages

Recently, I saw someone indicate that they had an Oracle tech on site some years ago. This tech had changed SQL*Plus so that its feedback said something like “about XX rows selected” instead of just “XX rows selected”. He wondered how the tech did that. I just had to dig into this and have some …

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Aug 21

Relink Grid Infrastructure

I recently had to work with my SysAdmin on a minor OS upgrade on a two-node RAC cluster. I am running Oracle Grid Infrastructure 11.2.0.2 with Oracle RDBMS 11.2.0.2 and we were upgrading from Oracle Enterprise Linux 5.2 to 5.8. As most Oracle DBA’s know, it is a good idea to recompile the Oracle software …

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Aug 16

SQL Developer Won’t Start

One of the things I like most about SQL Developer is that it runs everywhere. I have it installed on my Windows workstation. It is installed automatically on your database server, even Unix/Linux. And I have it installed on my MacBook Pro. The same product runs everywhere giving me a consistent tool no matter which …

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Aug 14

Reconstruct Standby DB

After a recent power outage at our DR site, I discovered that a standby there had stopped applying logs. Apparently in the archived redo logs was a transaction which grew a datafile but the disk at the standby site did not have enough disk space to allow that transaction to complete. So the standby terminated …

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Aug 03

User-defined Routine with DBMS_STATS, Part II

I had a previous post about user defined routines with DBMS_STATS. After some more digging, I determined how this works. I have some data in my database that is stored in a User Defined Type. If you have a user-defined type, you can associate your user-defined stats collection routine with the Oracle Data Cartridge Interface …

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Aug 03

Facebook Users and SQL Server 2012

When Facebook (FB) had its IPO in May, it was said that Facebook had almost 1 billion users worldwide. When this figure was floated, I was skeptical. First off, the world population is estimated to be almost 7 billion people. That means that approximately 1 in 7 people use Facebook. So lets stop and think …

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