Oracle

How to Deal with Jobs Belonging to Other Users

This is not the first time I have run into this issue – in the past I (and who knows how many more Oracle DBAs) have had to deal with handling jobs from a different user, which usually ends in a big error. The answer to my prayers was the undocumented dbms_ijob package.

DBD::Oracle 1.46 and 1.47_00 Hit CPAN

After a little more than two weeks of soaking without any issues (yay!), version 1.45_00 of DBD::Oracle has been promoted to general use as v1.46.

And because some contributors have been very busy in the meantime, the next trial version, v1.47_00, is also already on its way to CPAN. This new version offers a few bug fixes (more details in the changelog excerpt below) as well as a rework of the platform-specific troubleshooting guides as POD documents. As usual, it’ll be left around for a minimum of two weeks before it gets promoted to v1.48. Happy upgrade!

Minimal Downtime Option for Upgrading Oracle 9i/10G Databases to 11G

Often, a hardware is updated at the same time as a database version. In such cases, we migrate a database from an original location to a new server upgrading the database version and sometimes changing operational system. If this is your situation, you can use the upgrade process to minimize the system’s downtime to 1 hour, independently from the size of the database you migrate.

Interval Partitioning and Parallel Query Limit Access Paths

Interval partitioning – this ability to create partitions on the fly was introduced in 11g. When the feature came out, there were several nasty bugs. One such particular “limitation” has to do with parallel group by on the partition key. If you want to see just that part, skip towards the end, but I think reading the whole post will offer some insight on how Oracle Parallel Query works.

Oracle Direct NFS: How to Start

First of all, if you are using NFS to store Oracle database data files, I strongly advise you to enable Oracle Direct NFS (DNFS) to access these files. However, if you are not using NFS, DNFS is probably not of interest to you, and you should stop reading here. But, if you want to set it up, let’s go!

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