Posts Categorized: Technical Blog
It seems to be assumed that fixed-point values, DECIMAL and NUMERIC, in MySQL are not susceptible to rounding errors because they are exact numeric data types. It must be kept it mind, that there are limits in precision, and the maximum number of digits for DECIMAL is 65. What I am discussing here is rounding error.
Sometimes clients ask us to implement scripts that change objects in their schemes. In order to prevent the situation when these scripts hung just because some, or several, objects are pinned. Here are two simple procedures that can help to check what we will get during our maintenance.
I’m an experienced Oracle DBA, I have lots of Linux experience and scores of RAC installations under my belt. I also work for one of the best and more experienced RAC teams in the world. So when a customer asked how long it will take to install 2-node RAC, we answered “2 hours”. It took over 30 hours…
Oracle Database Appliance (ODA) is in many ways similar to an Exadata quarter rack: they both use two similar compute servers in an engineered system configuration, with shared storage and flash storage. But in other ways, especially networking and storage, they differ significantly.
I’ve started putting together some information about the Oracle Database Appliance in question-and-answer form. If you have an unanswered question, ask away in the comment section in this post.
When I first heard about Oracle Database Appliance and what it does, I got really excited — I saw great potential in this product. When we got our hands dirty and started testing the appliance, I become confident that this product will be a hit. This article is targeted at system architects and managers to explain what they get, and don’t get, with Oracle Database Appliances.
Pythian is happy to announce the achievement of three new Oracle PartnerNetwork Specializations, bringing the total to seven under our Platinum level membership of the Oracle PartnerNetwork (OPN) program. The new specializations are: Oracle Exadata, Oracle Data Warehousing, and Oracle GoldenGate.
I was in Melbourne presenting two of my papers for Australian Oracle User Group Victorian members. I received a very warm welcome in that beautiful city. it was my pleasure to meet several Oracle DBAs and present for AUSOUG members. 25 people took part in the meeting! I should say that it was one of the best audiences I have presented for over the last few months! I received several good questions and we have a very good follow up discussion.
Isn’t that that time of the year again? Yes, it is — it’s time for our annual Oracle Bloggers Meetup and of course Oracle is piggybacking OpenWorld with the meetup again! ;)
In this post I explain how you can install both Oracle VM Server 3 and Oracle VM Manager 3 allocating to both components just 1GB of RAM on the same logical server (Dom0).