Author Archives: Bobby

I’m leaving for Las Vegas a week from this Sunday for the Collaborate 2018 conference #C18LV. I’m doing the same two talks that I did in Denver at RMOUG Training Days. Here are the times and locations for the talks if … Continue reading →

This is a quick note about a problem I had creating a Delphix virtual database clone of a production database. This is an older 11.1.0.7 HP-UX Itanium database. I tried to make a new virtual database copy of the production … Continue reading →

This is a late post inspired by my time at RMOUG Training Days 2018. I attended two RMOUG Training Days presentations about automated cloud data warehouse database systems. The first was about Snowflake. The second was about Oracle’s coming Autonomous … Continue reading →

I am just getting started looking at MySQL performance tuning but I thought I would share something that I may have figured out. I’m working with a query that does a count and a group by in a subquery and … Continue reading →

I have uploaded a zip of my two RMOUG Training Days talks here: zip During the Toastmasters talk there was a question about finding a club in your area. Here is how to find a Toastmasters club near you. Go … Continue reading →

Well, it is early Wednesday morning here at the Westin hotel in Denver where the RMOUG Training Days conference is being held. I can’t sleep anyway so I thought I would write-up some of my impressions of yesterday’s presentations. I … Continue reading →

We had an outage on an important application last Thursday. A particular SQL statement locked up our database with library cache: mutex X waits. I worked with Oracle support to find a bug that caused the issue and we came up … Continue reading →

The deadline for early registration for RMOUG Training Days 2018 is rapidly approaching. The deadline is January 12. The early registration fee is $385 for RMOUG members and $450 for non-members. There is a packed agenda over the three-day event. The hotel costs … Continue reading →

IOUG accepted both my Toastmasters and Python talks for Collaborate 18. RMOUG also accepted them both so I will be doing these two talks in both February and April. I am a little surprised because I have had talks rejected by IOUG … Continue reading →

The Arizona Oracle User Group (AZORA) is meeting this Thursday, November 16th, 2017 from 12:30 to 3:30 pm Arizona time. Here is the link to the Meetup: https://www.meetup.com/Arizona-Oracle-User-Group/events/244531599/ Here is a link to the user group site with more information: … Continue reading →