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Multiple Index Regression Analysis

I actually had a blog entry started on this topic before IDUG. I knew this was possible, but not exactly how to do it. Then I sat in Scott Hayes’ session – D04 – More Sage Advice: Invaluable DB2 LUW Performance Insights from Around the Globe, and he had all the details I needed to really get rolling on trying...

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A Couple of db2look Problems

I recently ran into a couple of db2look problems for different clients, and thought I’d share them in case someone else runs into them. db2look is a tool used to mimic databases, objects, or statistics. If you are not familiar with it, check out my post on DB2 Basics: db2look. db2look Problem with Packages Bound This problem occurred when I...

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Happy 5th Blogiversary to db2commerce.com!

This week marks the 5th blogiversary of db2commerce.com! Wow, 5 years! A few statistics: Total posts published (including guest bloggers): 384 Years of averaging one or more posts per week: 3.5 (started in 2012) Total words published (including guest bloggers): 401,245 Longest post: 13,043 words (HADR Tools: HADR Calculator) Shortest post: 27 words (DB2 Haiku – Building Skills) Words published...

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DB2 Basics: db2look

I was a bit shocked when I searched my own blog for entries on db2look and came up with nothing. While it’s not a complicated tool, db2look is an essential tool. What db2look Can Do db2look is a tool provided with DB2. db2look’s primary purposes are: Mimic Statistics – To generate the SQL to update statistics with the idea that...

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Ember Speaking at DB2 Symposium in Eindhoven on 11 June

For the 5th blogiversary of db2commerce.com, I’m taking a European trip. It has been more than decade since I’ve been overseas, so I’m very much looking forward to it. I’ll be speaking at the DB2 Symposium in Einhoven on 11 June! I’ll be giving a day-long intensive on Lessons Learned Running DB2 for E-Commerce. An outline of what I’ll be...

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Generating Log Archive Activity Histograms

A few weeks ago, Ember posted a tweet mentioning that being able to see a histogram showing frequency of transaction log archive activity would be helpful. I had already done some work in this area by parsing the diagnostic log file (db2diag.log) for log archive messages, but I thought I could throw together a quick example of how to do this using...

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Binding DB2 Base Packages for Various Versions

When connecting between different versions of DB2, you generally need to bind packages from the different versions against the DB2 database. Just because you’ve bound db2ubind and db2cli on the server does not mean that all possible clients connecting in are covered. Sometimes binds happen implicitly, but sometimes they don’t. And you don’t necessarily want to grant a user rights...