DBA Lounge
As we all know proper use of bind variables in SQL statements is a must to make transaction processing applications scalable. So how do we find the queries that don’t use bind variables and have to be parsed each time they are executed? There is number of ways, but this article is all about the most effective way I know. If you have a better one – let me know please!
Wouldn’t it be nice if there was a way to flip block and postfix statements with the ease of a single command? Well, I thought so, so I came up with a dirty little script, have a look.
This post should give you some insights into the risk that your databases are in by switching to the bulk-logged recovery model. So, what do you need to do to avoid this risk? Make sure that you run a backup immediately after the transactions you are running under the bulk-logged recovery model complete.
I recently helped setup an Exadata X2-8 Database Machine with the latest version of OEM Cloud Countrol (12.1.0.2). A few documents do exist for this process. However I found a few inconsistencies and problems; I think the existing documents I found were written on older versions of OEM and older versions of the tools. I’m publishing my final procedure here with hopes that it helps you, but as always please cross-reference this with the appropriate documentation before doing anything in your own environment.
This one was going to be a cry for help and a request to confirm that I’m not going cuckoo, but I think I figured it out. Still, for giggles, hear this:
DBD::Oracle v1.54 is on its way to CPAN. In this iteration, no new feature, but a large amount of bug fixes.
It has come again. This magic time of the year when, in-between the hangovers of Christmas and the hangovers of the New Year bashes, one takes a longing look back at the ending year, and make mad plans, wistful wishes and grandiose resolutions for the new one. So, for a moment, let me indulge in this tradition and let my gaze wander at the distances that stretch forward and behind, while my mind drift back and forth betwixt what has been and what shall be. But gently. ‘Cause lemme tell you, that was damn good eggnog (so please be kind and don’t click so hard with the mouse, will you?).
What better way to start the year than to bring a fresh new breath to an old favorite? And thus, as you read this a new version of Git::CPAN::Patch should be making its way to CPAN. This new version is a massive refactoring of the module’s guts, which will affect both end-users and developers. For the best. Mostly. Or so I hope.
In this post, I’ll demonstrate how to deploy the pre-built Oracle VM templates to create a two-node 11gR2 RAC cluster in Oracle VirtualBox.
I was recently looking at an issue where a large database server was running out of temp space. The issue had happened in the past, so the goal was to identify what had been causing the system to run out of temp. Although ORA-1555 messages will appear in the database alert log (with query text) when a query runs out of temporary space, they only talk about the query that was “unlucky” enough to be attempting to get space when the tablespace was full, not who was using the temp space.
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