Welcome to the 89^th edition of Log Buffer, the weekly review of database blogs.

Welcome, welcome everyone.

In writing this week’s Log Buffer, I’ve had a chance to sit down and read some excellent posts on all sorts of platforms. The depth and breadth of what’s available to house and retrieve data is astonishing.

Many of you who have read my posts will know that I’m a fan of vegetables. They are something most of us don’t eat enough of. Come on DBAs! I think we need to make a collective effort to get healthy. We need you to keep all these systems alive. I say this because I have a new found appreciation for the work we do day in and day out.

Six months ago my wife and I said hello to our baby girl for the first time. I don’t say this to elicit any type of congratulations, but to illustrate something entirely different. If you have ever been to a hospital for any reason — to celebrate, to hope, or to say goodbye — you know the sheer complexity of the vast numbers of systems that need to interact. Daily, these systems save lives and help bring new ones to this world. I saw first-hand how the work I do on a everyday keeps the wheels turning.

Some of our customers run systems used by hospitals and I saw them in action. In a simple world, treating people can be done without technology, but this is an issue of scale, and our involvement directly affects the sheer masses of people whose lives are better because of our behind-the-scenes support. It’s true here, and it’s true for the most serious, most mission-critical systems, to the least critical and most trivial systems. The work done by DBAs from all platforms should be recognized for what it is.

I’m proud of what I do for a living and happy that I get to work in an industry filled with so many savvy folks. Oracle, Microsoft, MySQL, Postgres, IBM, and countless other organizations, and the people involved in them have together created an industry filled with opportunities and challenges, and above all, they have together elevated our ability to communicate and share. It’s in this spirit that Log Buffer was created, so let us proceed!

Since I’m an Oracle guy, we’ll let Oracle go first this time.

(more…)

Welcome the the 87^th of Log Buffer, the weekly review of database blogs.

First up, a couple of items responding to news about H-Store, the new database technology. Nigel Thomas of Preferisco wonders if H-Store is a new architectural era, or just a toy?

Too much information, in turn, asks, Is H-Store the future of database management systems?

MySQL

Also aware of how technological change affects day-to-day DBA business, Dave Stokes of Dave’s Stuff has a tip for MySQL certification candidates: “[They] need to know about a little known but important function . . .” — PROCEDURE ANALYSE(). He writes, “It is mainly used to suggest optimal column sizes. Forty years ago you needed to worry how to properly encode data so that it would fit on an eighty column punch card. Thirty years ago when hard disks were the size of stove or dishwasher, there was a need to conserve as much space as possible. Today people carry gigs of data in their pocket and a terabyte of disk is available at local stores next to other consumer products. So you can be less than optimal in your storage of data for the most part. There are exceptions.”

Dave also asks that, as MySQL joins Sun and introduces their data into Sun’s systems, MySQL certification candidates update their email address info.

Matt Asay of the Open Road covers IBM’s announcement that is has ended development for MySQL storage engine, SolidDB. “Some among us (myself included) once worried that IBM was joining with Oracle to besiege MySQL when it acquired SolidDB, one of MySQL’s primary storage engines. It turns out, however, that IBM didn’t have such nefarious plans.”

Guiseppe Maxia, The Data Charmer, illustrates how the easy use of DISTINCT is lazy.

On Diamond Notes, a tip on speeding up imports by sorting, coming from a 60-hour, 106 million row MyISAM import.

CrazyToon offers answers to the question, how do you set up master-master replication in MySQL?, laying out the basics of this arrangement.

Baron Schwartz was mining the same vein this week. He has a piece on Xaprb on how to sync tables in master-master MySQL replication.

so many trails … so little time has an item showing how to sync two tables in MySQL.
“Usually replication is the suggested answer, but it might be a little overkill… In this case the right tool might be a mix of the new MySQL features, federated tables, extended insert synthax, stored procedures, events, triggers … quite a fest.”

(more…)

Hello everyone,

I think this will be a great log buffer.

Dave has been sick these past two days and as a result, we do not have a comprehensive log buffer ready the way we or a volunteer usually do. This was bound to happen to log buffer at some point and today it has happened.

So I had two choices - cancel this week’s log buffer, or try to make it great despite this adversity. Never one to accept defeat easily, I’ll go for the second option. At least if this is the lamest log buffer ever it won’t be because I didn’t try something new that had a shot at a good result.

So this week’s log buffer is as follows: If you came here to read interesting content from the database community, you probably spend some time each day learning and reading about things we would all find interesting. We are counting on each and every one of you, our faithful readers, to propose the one article you read in the last week (and preferably was written in the last week but I can’t exactly be choosy at this point can I?), and include a short paragraph as to why this article was interesting to you and why it should interest us. Do this in the comments to this post; the akismet spamfilter will tend to eat comments with URLs so please include the magic word “contribution” somewhere in your comment so I can go dig them out for approval.

Feel free to link to your own blog posts if you are proud of them. It is a carnival of the vanities, after all.

A typical log buffer gets over a thousand reads over the week it is active. I am going to call this experiment a success if there are at least 25 interesting links written by the community posted below! And if there are not, well it was worth a try and much better than saying it was canceled.

And so this will be the first log buffer truly written by the readership - join us to make it a good one!

Thanks

Paul
P.S.

Get well soon, Dave