ALL POSTS

DBMS_SCHEDULER and Implicit Commits

As usual, Oracle introduces new features, and we read the documentation about how they work and we start using them… but what about what is not in the documentation? That we find out by practice, experience, or accident. And that is exactly what happened to me today.

Bug in Oracle DST Patch Rollback

Last week, we discovered a bug related to the rollback of the Java DST patch for 9206 on Linux x86. If you’re in the unfortunate position of needing to roll this patch back, you won’t be able to. When you rollback, you need to restore both of these files, and then do a create or replace java system. Otherwise you risk hitting a dreaded ORA-03114 End of file on communication channel. Those of you familiar with DST patching will have seen this, but for those who haven’t, here are the scripts you need to check for a successful Java implementation:

Oracle Enterprise Manager 10GR3 to be launched March 13

Sorry if everyone else already knows this, but I just got some Oracle spam inviting me to EM 10GR3 launch party, and it’s scheduled as a “live online launch” on March 13, at 9:30. So those of you who are waiting with bated breath for the DST projects to be over now have something else to look forward to a couple days later!

Miracle Scotland DBF 2007

Unfortunately, I’m too slow to blog about news and can never make it first. Today is no exception and Doug Burns has already posted about “one of the best Oracle Conferences of all times”: I can tell you – I’m so excited to see all those bright people presenting. It’s especially a pleasure to see that Doug (who recently joined my team here at Pythian) is presenting there.

VIP Dependencies Lifted in Oracle 10.2.0.3

Oracle CRS 10.2.0.3 patchset brings long awaited removal of previously required dependencies of databases and ASM instances on a VIP. Actually, 10.2.0.2 patchset lifted the requirement for dependency between ASM instance and VIP but not for database instances. In 10.2.0.2 this dependency wasn’t removed by default. For those who don’t know…

MySQL Cluster and Codd’s Rule 11

Just a small thought to share. Oracle doesn’t really comply to the rule 11 of Codd’s 12 rules. It does have database links and tables can be grouped in different locations (databases) but it’s not possible to distribute a table transparently across several locations. MySQL Cluster, on the other hand, distributes rows of a table over different data nodes using hash function on the primary key and it’s transparent to the client so it conforms to the Rule 11 as opposed to Oracle.

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