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Oracle Database, Oracle 10g, Oracle 11g, Oracle XE, Oracle RAC, Oracle Instant Client, Oracle Data Guard and Oracle Exadata resources, news, and support articles.

How Many Ways to Solve this Problem? Generate a Calendar that Displays Average Hours Per Day

July 18, 2011 I am surprised at the significant number of unique solutions to the SQL problems that I have previously posed on this blog.  For fun I thought that I would give people another chance to demonstrate their unique approaches to solving another problem. Supposed that a transaction table exists with the following definition: CREATE [...]

Oracle 11g Release 2: Delete a Node from the Cluster

We have 3 node rac in the below example (racn1, racn2 and racn3), where we are removing racn3 from the cluster

Index Organized Tables – the Basics.

I think Index Organized Tables(IOTs) are a much under-used and yet very useful feature of Oracle. Over the next few postings I’m going to cover some aspect of Index Organised Tables, both good and not-so-good. I am going to cover some benefits of IOTs that I think many people are unaware of. In this first post I am just going to run through the basics of IOTs.

Just learn about listener on RAC (grid)

On 11gR2 RAC (Grid Infrastructure), I tests use LISTENER_SCAN* on port 1521 and LISTENER on port 1522. I would like to check what service names are registered in LISTENER. Umm...

[oracle@db01 ~]$ cat /grid/network/admin/listener.ora

Dbvisit Standby 6.0.06 released

6.0.06 (16 July 2011)
New features:

Oracle 11G SCAN:Questions and Answers Post

In this post:

  • General – the presentation file
  • Australia and Europe Webinar is scheduled (July 27th 2011)
  • SCAN Questions and Answers


This is a follow up post to answer questions you asked during my “Oracle 11G SCAN: RAC SIG webcast” at June 16th.

no progress on my service request makes me grumpy

Seriously Oracle support what is going on here? I have had a service request SR 3-3474803321 open for a very long time. On June 6 2011 I escalated it yet again and provided a reproducible test case. Oracle support at that time noted they were waiting on getting a test machine to verify it and then get a bug opened.

Archive area +RECO has -7440384 free KB remaining (Usable_file_MB is negative)

I must say, this has been a busy weekend.
We have been promoting a release to production and a guaranteed restore point was created on Friday as rollback strategy. On Sunday I was called as we started to receive alerts.
The problem:
Our monitoring system started to send emails and SNMP Traps with the following alerts:

Oracle 11g Release 2: SRVCTL commands PART 1 [Database]

SRVCTL commands

Check the Current Version of SRVCTL utility
  • srvctl -V 

For Database:
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