Maybe you remember Busytown, Richard Scarry’s famous town, from your childhood or from reading it to your kids.
Tony Ruth has created the Silicon Valley equivalent, BusinessTown, (h/t The Verge) populated by the archetypes we all know and sometimes love. What do the inhabitants of BusinessTown do? “What Value-Creating Winners Do All Day,” natch.
I have been a tad skeptical about the usefulness of smart watches, but my colleague Julia Blyumen has changed my thinking.
In her recent blog post, Julia noted that a smart watch could become both a detector and a universal remote control for all IoT “smart things”. She backed this up with a link to an excellent academic paper (pdf) (more...)
For one of the client, standby server went down. We had another standby server which was kept down for more than a month. Decision was taken to start the server and apply incremental SCN based backup on the standby database.
The standby was on ASM and the Primary on filesystem.Incremental backup was started from the SCN reported by below query
select min(fhscn) from x$kcvfh;
Once the backup completed, it was transferred to standby, standby (more...)
Julia’s recent post about her experiences with the Samsung Gear watches triggered a lively conversation here at the AppsLab. I’m going to share my response here and sprinkle in some of Julia’s replies. I’ll also make a separate post about the interesting paper she referenced.
You embraced the idea of the smart watch as a fully functional replacement for the smart phone (nicely captured by your Fred Flintstone image). I am on the other end (more...)
A recent MOS document discusses, albeit briefly, an issue with AWR reports that’s been going on since 10.2.0, namely that the elapsed time numbers for queries executed in parallel are considerably greater than the actual elapsed clock time. Let’s look at why that is and what can be done about it.
AWR reports were a tremendous improvement over Statspack reports, primarily due to the depth and breadth of the sample data collected. A (more...)
Editor’s note: In January of 2014, our team held a wearables summit of sorts, test-driving five popular watches, fitness bands and head-mounted displays to collect experiential evidence of each form factor, initial experience, device software and ecosystem and development capabilities.
I conducted customer feedback sessions with users who fit the “c-level executive” user profile, to collect feedback on some of our new interactive data visualizations. Unfortunately, I can’t share any of these design concepts just yet, but I can share a bunch of pics of Noel, who gave several (more...)
Last November Amazon announced a new kind of device. Part speaker, part personal assistant and it called it Amazon Echo. If you saw the announcement you might have also see their quirky infomercial.
The parodies came hours after their announcement, and they were funny. But dismissing this just as a Siri/Cortana/Google Now copycat might miss the potential of this “always listening” device. To be fair this is not the first device that can do this. (more...)
In a forum I contribute to the following question was asked:
Can adaptive cursor sharing (ACS) depend on execution order ?
The issue described a relatively basic query that changed execution plans apparently due to the order the query statements were run based on bind variable values. It’s an interesting issue that testing has verified. The tests are reproduced below, in abbreviated form, so let’s look at what was executed and what execution plans were used.
Back in the early 90s I ventured into virtual reality and was sick for a whole day afterwards.
We have since learned that people become queazy when their visual systems and vestibular systems get out of sync. You have to get the visual response lag below a certain threshold. It’s a very challenging technical problem which Occulus now claims to have cracked. With ever more sophisticated algorithms and ever faster processors, I think we can soon (more...)
It would appear that some DBAs are still using the optimizer_index_cost_adj parameter to make index access paths more ‘desirable’ to the optimizer. In decades past this might have been a good strategy however with the improvement in statistics gathering in recent relesaes of Oracle this might not be the case. Let’s look at an example to see why this might do more ‘harm’ than good.
The optimizer_index_cost_adj parameter was first provided in Oracle 9i as (more...)
Editor’s note: Here’s another new post from a new team member. Shortly after the ‘Lab expanded to include research and design, I attended a workshop on visualizations hosted by a couple of our new team members, Joyce, John and Julia.
The event was excellent. John and Julia have done an enormous amount of critical thinking about visualizations, and I immediately started bugging them for blog posts. All the work and research they’ve done (more...)