Tag Archives: mysql
One could say that MariaDB now is 2 years old as a packaged product. The latest version, MariaDB 5.3 Beta, is the culmination of many years of hard work. We believe it contains the largest and most significant change to the code of MySQL since the launch of MySQL 5.0. I’m talking about the changes made to the central product component called the Optimizer.
Why did we touch something so central to the product? The fast answer is that the original Optimizer is about 17 years old. Prior to the work we did for MariaDB 5.3, the Optimizer hadn’t had any huge evolutionary improvements or changes in a decade (except for some features that were added in 2003-2005). …
Ben Forta, the author of MySQL Crash Course and Sams Teach Yourself SQL in 10 Minutes, has written what I believe is the first MariaDB-specific book: MariaDB Crash Course. I just received word from Ben that the book is now shipping.
Most MySQL books can, of course, be used to learn almost everything you need to know about using MariaDB. But with all of the features and abilities MariaDB has gained in the MariaDB 5.2 and MariaDB 5.3 releases, it’s nice there is now a book specific to MariaDB. …
There are many new features in MariaDB 5.3. I’m looking forward to many of them, but one of the ones I’m most excited about is Progress Reporting.
It’s a fact of life in the database world that some commands take longer to run than others. Commands like ALTER TABLE, LOAD DATA INFILE, and adding and dropping an index simply take time to run, depending (of course) on your data and schema. I always have hated having to wait for those commands to run with no indication of how much progress has been made or how much is left to do. …
In the #maria IRC channel the other day I fielded a question someone had about a DATETIME column where they wanted to SELECT by the year. The answer (which is probably obvious to many of you) is to use the YEAR() function like so:
select * from t1 where YEAR(d) = 2011;
(The above assumes the table is named “t1” and the DATETIME column is named “d”.)
In my reply I provided a link to the Date and Time Functions section of the AskMonty Knowledgebase, but when I looked at the entry for the YEAR() function, I noticed that the example given (which originated from the file scripts/fill_help_tables.sql which is found in the MySQL and MariaDB source) was not very helpful:
MariaDB [(none)]> …
Every morning before any of the meetings get started I print out a small one page newsletter which contains (among other things) the program for the day. Rather than keep them private, Colin suggested I post them here. I call the newsletter the “MariaDB Programador de Journal” which (I think) translates to “MariaDB Programmer’s Journal” in Portuguese.
[Updated, 13 Mar 2011, to add the newsletter for that day.]
At the meeting we’ve also been taking notes and posting them online for what improvements we want to make this year in MariaDB to make it even better. …
Continue reading “Newsletters from the MariaDB dev meeting in Lisbon”
Almost a year ago we launched the AskMonty Knowledgebase, a home for information on MariaDB and MySQL. When we launched, only employees had access to write articles, though anyone could ask a question. This was done for technical reasons. The good news is that that has changed, with the latest version we just pushed live, anyone with an account (or an open ID) can create and edit articles.
There is only so much content we can write so we want your contributions, from completely new articles to editing and improving what we already have. If you have questions on how to get started, you can join the Maria Docs group on launchpad and ask on the mailing list. …
Continue reading “The AskMonty Knowledge Base – Open for editing”
Via SpamExperts:
SpamExperts has their own anti-spam filtering cloud which is provided as a software-as-a-service (SaaS) model. In addition they have an e-mail security product which they install, update and monitor on-site. Most of SpamExperts’ anti-spam technology has been developed in-house and makes extensive use of the MySQL database. All clients contribute in real-time to their filtering effectiveness, so they have many different data flows that are handled by MySQL. Replication is used to synchronize the data between the systems in a cluster and to push data feeds in real-time. The SaaS cloud is replicated across four countries for redundancy, whereas client installations spread the data retrieval around the globe.
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Continue reading “Quickly and efficiently migrating hundreds of servers from MySQL to MariaDB”
As Hakan mentioned previously, the full text of SQL-99 Complete, Really by Peter Gulutzan and Trudy Pelzer, is now in the AskMonty.org Knowledgebase. Importing the text and formatting it for the Knowledgebase was a major project and I’m glad that it’s done.
Having the full text of this book freely available is a great thing for anyone who uses SQL because the book is about the SQL-99 standard and not about any particular database implementation. They do talk about different implementations, but those sections are clearly marked as such, and serve as examples of how some databases implement (or diverge from) the standard.
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