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October 2013

Cloud Control 12cR3, Oracle Linux and VMware

I mentioned some time ago that I was pushing my current company to move much of their gear on to VMware, mostly because of poor resource utilization on many of the servers. That process is still under way.

One thing I wanted to mention specifically was our use of Cloud Control 12cR3. Up until recently, we were using physical kit for this. We had an 11.2 database on HP-UX, With HA provided by HP Service Guard. We had two management servers on physical kit running RHEL5 pointing at this Service Guard package to give us some resiliency in of the OMS. It worked, but it was over complicated and I was never really happy with it for a number of reasons:

FBI decode

It probably won’t surprise many people to hear me say that the decode() function can be a bit of a nuisance; and I’ll bet that quite a lot of people have had trouble occasionally trying to get function-based indexes that use this function to behave properly. So (to put it all together and support the general directives that case is probably a better choice than decode() and that the cast() operator is an important thing to learn) here’s an example of how function-based indexes don’t always allow you to work around bad design/code. (Note: this is a model of a problem I picked up at a client site, stripped to a minimum – you have to pretend that I’m not allowed to fix the problem by changing code).

First we create some data and indexes, and gather all relevant stats:

OOW13 - Day 2 - Oak Table World in the Cloud

Despite others best attempts - "Just one more" - I managed yet another early-ish night and so by the morning I was in a better than expected state for my Oak Table World presentation at 9am. I certainly looked in a better state than Tim Gorman, but thanks to him for showing up! ;-) When I put my name down for this, I didn't really think through the 9am slot, but I *did* think through going for the smaller of the two rooms that OTW had expanded to. 50 rather than 100 seats suits my modest persona ;-) and, man, I love that circular room! Better still, it was absolutely packed.

Popularity vs Productivity vs Performance







Performance Reports in SQL Developer 4 EA2

SQL Developer 4 EA2 includes a performance node in the DBA tree.



You can use this to view ADDM, AWR and ASH reports directly from SQL Developer. I know I can get these from Cloud Control, but previously I tended to pull these out from the command line on the server. This is a much better approach IMHO.

SQL Developer 4 EA2 Connecting to SQL Server

I wrote a blog post some time ago about using SQL Developer 3.x to connect to SQL Server. I tried the same thing today from SQL Developer 4 EA2 and it works just fine.

You have to download the 3rd party JDBC driver and point SQL Developer to it. You can read how to do it here.



Update: My colleague just told me this.

“If you at any point decide to use Windows authentication to connect (like I just did), you might hit this error:

Status : Failure -I/O Error: SSO Failed: Native SSPI library not loaded. Check the java.library.path system property.

Being Friends with Larry Ellison… :)

So I tried to finish out some of my OOW posts, but I ended up talking about this with a friend and thought I would share how I became Facebook friends with Larry Ellison instead….