Comments on: Denormalized Databases: A better example http://www.selikoff.net/2008/11/23/denormalized-databases-a-better-example/ Java/J2EE Software Development and Technology Discussion Blog Mon, 15 Mar 2010 00:52:11 -0400 http://wordpress.org/?v=2.9.2 hourly 1 By: Yma http://www.selikoff.net/2008/11/23/denormalized-databases-a-better-example/comment-page-1/#comment-1775 Yma Tue, 21 Jul 2009 16:08:28 +0000 http://www.selikoff.net/blog/?p=622#comment-1775 Denormalization is beneficial especially if you have a normalized hierarchical table.An example could be parts having subparts resulting in a hierarchy of multiple levels. I did a time check on with an SQL query on this kind of a table(with 3 levels ) and the denormalized table gave a substantial performance improvement (with respect to time) Denormalization is beneficial especially if you have a normalized hierarchical table.An example could be parts having subparts resulting in a hierarchy of multiple levels. I did a time check on with an SQL query on this kind of a table(with 3 levels ) and the denormalized table gave a substantial performance improvement (with respect to time)

]]> By: Michael Ernest http://www.selikoff.net/2008/11/23/denormalized-databases-a-better-example/comment-page-1/#comment-597 Michael Ernest Sun, 23 Nov 2008 22:20:58 +0000 http://www.selikoff.net/blog/?p=622#comment-597 I wanted to chime in on the last article too, but for lack of time I couldn't finish my point, then lost what I had written to a cache flush. Oy. My two cents on this one: delete this apology! Simple examples are meant to be taken apart, but for the sake of clarifying the problem, not criticizing the writer. The only nitpick that is worth reading to the end is a better example! If someon truly didn't get what you were saying because of your example, that's one thing. As I see it, whiteboard examples are limiting in proportion to how literally it is understood -- and how quickly the reader would hope to apply it, rather than mediate on the meaning. If I've learned anything from my almost-15 years in technical training, it's that people don't want to think if they don't have to, they want to plug in. Unless you're offering that service, stick to examples that demonstrate your point without proving it. Let the impatient reader meet you halfway. If they don't want to do even that, don't worry about it! You do well enough to put your points out there for free. Keep 'em coming, Scott! I wanted to chime in on the last article too, but for lack of time I couldn’t finish my point, then lost what I had written to a cache flush. Oy.

My two cents on this one: delete this apology! Simple examples are meant to be taken apart, but for the sake of clarifying the problem, not criticizing the writer. The only nitpick that is worth reading to the end is a better example! If someon truly didn’t get what you were saying because of your example, that’s one thing.

As I see it, whiteboard examples are limiting in proportion to how literally it is understood — and how quickly the reader would hope to apply it, rather than mediate on the meaning. If I’ve learned anything from my almost-15 years in technical training, it’s that people don’t want to think if they don’t have to, they want to plug in. Unless you’re offering that service, stick to examples that demonstrate your point without proving it. Let the impatient reader meet you halfway. If they don’t want to do even that, don’t worry about it! You do well enough to put your points out there for free.

Keep ‘em coming, Scott!

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