The MySQL Community continues its good work in testing and refining MySQL 5.6, and as such the next iteration of the 5.6 Release Candidate is now available for download.  You can get MySQL 5.6.9 here (look under the "Development Releases" tab).  This version is the result of feedback we have gotten since MySQL 5.6.7 was announced at MySQL Connect in late September. As iron sharpens iron, Community feedback sharpens the quality and performance of MySQL so please download 5.6.9 and let us know how we can improve it as we move toward the production-ready product release in early 2013.

MySQL 5.6 is designed to meet the agility demands of the next generation of web apps and services and includes across the board improvements to the …

Yes it’s still 4 months away, but some pre-selected sessions for Percona Live MySQL Conference & Expo 2013 have been released, and one is mine: Survey of Percona Toolkit: Command-line Tools for MySQL.  If you’ve not heard of Percona Toolkit, or have but have been putting off getting acquainted with it, attend my talk and I’ll get you off to a good start.  And if you didn’t know: I’m the lead PT developer, so I know the tools pretty well.

Do I have to look out for a new job? Some analysists say so: NoSQL is getting stronger. Given the prediction it is time for me to learn what NoSQL is.

Vote NO for MySQL from Ulf Wendel

http://de.slideshare.net/nixnutz/vote-no-for-mysql (Slides: Vote NO for MySQL)

As a matter of fact there is no one kind of NoSQL but many. Four different kinds of NoSQL stores are competing with MySQL: Key Value Stores, Document Database, Graph Databases and Big Data/Column-oriented. Each of them has their specific strengths.

Key Value Stores are all about performance. MySQL 5.6 introduces …

Taxonomy upgrade extras: Backup Restore RecoveryBackup

Some MySQL customers do not want to use the root user for mysqldump backups. For this user you have to grant the following minimal MySQL privileges:

mysqldump --single-transaction (InnoDB)

CREATE USER 'backup'@'localhost' IDENTIFIED BY 'secret';
GRANT SELECT, SHOW VIEW, RELOAD, REPLICATION CLIENT, EVENT, TRIGGER ON *.* TO 'backup'@'localhost';

mysqldump --lock-all-tables (MyISAM)

GRANT LOCK TABLES ON *.* TO 'backup'@'localhost';

If we missed a privilege please let us know.

This is just a small bug-fix release of the plugin. It has actually been quietly released for a while now. If you have downloaded the plugin recently, you have the latest version. To be sure, check the version in the Console, or you can see it in the file name.

There are two bugs fixed:
1. Deployment on an OMS hosted on Solaris didn’t work. (And I suspect it could be the same for Agents on Solaris.)
2. Changing thresholds on the metrics caused the error “Modification of Target Monitoring Settings has Failed”. Also, applying monitoring template was failing for the same reason.

If you didn’t know that you could setup threshold and customized the thresholds that are set out of the box with the plugin, then you are not fully using Enterprise Manager. You can do that in the MySQL target menu — Monitoring -> Metric and Collection Settings. When alert or warning conditions are met, Oracle EM can raise …

Wow! We at GenieDB have been working on a geo-distributed, multi-datacenter, relational database engine for some time. We’ve believed in this vision of providing distributed RDBMS/SQL database, but had to endure the NoSQL movement and other attempts at refuting the need for such a thing. One whitepaper and what a big difference it makes!

The Spanner whitepaper does just as good a job as any marketing speak of describing what we are after. “Even though many projects happily use Bigtable, we have also consistently received complaints from users that Bigtable can be difficult to use for some kinds of applications: those that have complex, evolving schemas, or those that want strong consistency in the presence of wide-area replication. … …

Unfortunately jQuery doesn’t come with default form validation to check for ip-addresses or subnet masking. So without a long winded explanation here’s the code. Just include this as a separate JS file like the rest of your page’s JS.

// 'ipv4': IPv4 Address Validator
$.validator.addMethod('ipv4', function(value) {
    var ipv4 = /^[0-9]{1,3}\.[0-9]{1,3}\.[0-9]{1,3}\.[0-9]{1,3}$/;    
    return value.match(ipv4);
}, 'Invalid IPv4 address');

// 'netmask': IPv4 Netmask Validator
$.validator.addMethod('netmask', function(value) {
    var mask = /^[1-2]{1}[2,4,5,9]{1}[0,2,4,5,8]{1}\.
[0-2]{1}[0,2,4,5,9]{1}[0,2,4,5,8]{1}\.
[0-2]{1}[0,2,4,5,9]{1}[0,2,4,5,8]{1}\.
[0-9]{1,3}$/;    
    return value.match(mask);
}, 'Invalid IPv4 netmask');

You can use it like this.

$("#myform_here").validate({
    rules:{
        ipaddress:{
            required:true,
            ipv4:true
        },
        netmask:{ …

You had requested for a visual tool to compare two instances of a table to spot differences. We heard that. We are delighted to introduce Visual Data Compare (VDC) in SQLyog 10.5. It lets you do exactly that, and more. VDC allows you to compare two tables right next to each other making it easier to spot differences. It is a lot simpler than manually figuring it out all by yourselves.

VDC also doubles as an additional option for data sync. With VDC you will be able to compare differences visually and specify tables and rows that shall be synced as well as to decide in what direction to sync. It comes very handy when you want to copy lookup data from development databases to staging or production in cases where you for any reason don’t feel safe about having an automatic sync job running unattended in the background.

Visual Data Compare in action

What’s more in this release:

…

This week we talk more about stored routines, including the several different DECLARE statements. Ear Candy is about ssh hacks to make logging into multiple servers easy, and At the Movies is "Everything You Ever Wanted to Know About Deployment But Were Afraid to Ask".

Events
FOSDEM 2013 is taking place in Brussels, Belgium Sat Feb 2 - Sun Feb 3rd. Call for papers for the MySQL & Friends room closes December 21st.

read more

While I try to contain everything about installing MySQL in a single post that I update from time-to-time, Mac OS X, Mountain Lion (10.8.x), requires some pre-steps. You must install XCode, and the Command Line Tools. This post provides the screen shots and step-by-step instructions.

Before you can do any of these steps, you must connect to the Apple Store and download XCode. Dependent on your internet speed this may take some time. Generally, it’s an hour or less.

1. After installing XCode, click the Rocket Spaceship in the Mac Dock to launch a view of your Applications. Launch XCode by clicking on the hammer overlaying the blue background XCode icon shown below.

1. After launching …