When I wrote about the remote cloning of PDBs, I said I would probably be changing some existing articles. Here’s a change I’ve done already.
There are also new articles.
I’m sure there will be some more little pieces coming out in the next few days…
I suggested a little while ago that thinking about the new in-memory columnar store as a variation on the principle of bitmap indexes was quite a good idea. I’ve had a couple of emails since then asking me to expand on the idea because “it’s wrong” – I will follow that one up as soon as I can, but in the meantime here’s another angle for connecting old technology with new technology:
# yum update -y
That’ll be the upgrade done then…
If you are using MySQL on Linux you can use the MySQL Repository for your distribution, rather than using the bundled MySQL version, to make sure you stay up to date with the latest and greatest. As long as you stay within a point release (5.6, 5.7 etc.) of the latest version, upgrades should really be as simple as a “yum update”.
In a previous blog post, I covered setting up Schema as a Service for schema level consolidation. In this post I’m going to cover how to use the Self Service Portal with Schema as a Service in EM 220.127.116.11.
Just as it was in my posting on using the Self Service Portal with DBaaS, our first step here is to login as the Self Service user, so I provide the right username and password and click “Login”:
I think I’ve lived through all the ages of Enterprise Manager. I used the Java console version back in the days when admitting you used it got you excommunicated from the church of DBA. I lived through the difficult birth of the web-based Grid Control. I’ve been there since the start of Cloud Control. I’ll no doubt be there when it is renamed to Big Data Cloud Pixie Dust Manager (As A Service).
I was walking from the pool to work this morning, checking my emails on my phone and it struck me (not for the first time) that I’m pretty much a 24 hour DBA these days. I’m not paid to be on call, I’m just a 9-5 guy, but all my Cloud Control notifications come through to my phone and tablet. I know when backups have completed (or failed). I know when a Tnsping takes too long. I know when we have storage issues. I know all this because Cloud Control tells me.
I did a quick update of my Oracle installation articles on Oracle Linux 7. The last time I ran through them was with the beta version OL7 and before the release of 18.104.22.168.
The installation process of 22.214.171.124 on the production release of Oracle Linux 7 hasn’t changed since the beta. The installation of 126.96.36.199 on Oracle Linux 7 is a lot neater than the 188.8.131.52 installation. It’s totally problem free for a basic installation.
You can see the articles here.
Press Coverage at The Register: Click here.
This blog post offers proof that you can trigger In-Memory Column Store feature usage with the default INMEMORY_* parameter settings. These parameters are documented as the approach to ensure In-Memory functionality is not used inadvertently–or at least they are documented as the “enabling” parameters.
It was my intention to only write 2 installments on my short series about Oracle Database 12c In-Memory Column Store feature usage. My hopes were quickly dashed when the following developments occurred:
1. A quote from an Oracle spokesman cited on informationweek.com was pulled because (I assume) it corroborated my assertion that the feature is enabled by default. It is, enabled by default.
I mentioned in a previous post that I would be revisiting some of my existing multitenant articles to include some of the features introduced in the 184.108.40.206 patch. Here’s one of them.
So 220.127.116.11 is out with a number of interesting new features, of which the most noisily touted is the “in-memory columnar storage” feature. As ever the key to making best use of a feature is to have an intuitive grasp of what it gives you, and it’s often the case that a good analogy helps you reach that level of understanding; so here’s the first thought I had about the feature during one of the briefing days run by Maria Colgan.
“In-memory columnar storage gives you bitmap indexes on OLTP systems without the usual disastrous locking side effects.”