The latest from the MySQL community

I think one of the big announcements that came out from the Amazon Web Services world in October 2015 was the fact that you could spin up instances of MariaDB Server on it. You would get MariaDB Server 10.0.17. As of this writing, you are still getting that (the MySQL shipping then was 5.6.23, and today you can create a 5.6.27 instance, but there were no .24/.25/.26 releases). I’m hoping that there’s active work going on to make MariaDB Server 10.1 available ASAP on the platform.

Just last week you would have noticed that Amazon has rolled out MySQL 5.7.10. The in-place upgrades are not available yet, so updating …

Async, part of the Swanhart Toolkit (http://github.com/greenlion/swanhart-tools) has been updated to fully support 5.6 (the GET_LOCK I used only worked with new 5.7 GET_LOCK semantics) and it now also supports INSERT/UPDATE/DELETE/CREATE/CALL/etc (anything that can be prepared). You can only get a resultset back from SELECT statements even if CALL statements return a resultset. This is a MySQL limitation (no CALL xyx(..) AS table_name)

Async, part of the Swanhart Toolkit (http://github.com/greenlion/swanhart-tools) has been updated to fully support 5.6 (the GET_LOCK I used only worked with new 5.7 GET_LOCK semantics) and it now also supports INSERT/UPDATE/DELETE/CREATE/CALL/etc (anything that can be prepared). You can only get a resultset back from SELECT statements even if CALL statements return a resultset. This is a MySQL limitation (no CALL xyx(..) AS table_name)

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“Leading enterprises have a firm grasp of the technology edge that’s relevant to them. Better data analysis and disambiguation through semantics is central to how they gain competitive advantage today.”–Alan Morrison.

I have interviewed Alan Morrison, senior research fellow at PwC, Center for Technology and Innovation.
Main topic of the interview is how the Big Data market is evolving.

RVZ

Q1. How do you see the Big Data market evolving? 

Alan Morrison: We should note first of all how true Big Data and analytics methods emerged and what has been disruptive. Over the course of a decade, web companies have donated IP and millions of lines of code that serves as the foundation for what’s being built on top.  In the …

There is often a need to run queries in the background in MySQL. This generally is accomplished using a message queue (like gearman), or by using extensions to a client (PHP has such extensions) or by using MariaDB's native async query interface (C client only I think).

While such solutions work well, they don't work for say a GO client, or for the mysql command line client itself.

I present "async"; part of the Swanhart Toolkit (http://github.com/greenlion/swanhart-tools). Async is a stored procedure and event based solution for asynchronous queries.

It consists of:

• 
  
• A queue table to hold the SQL to run, the state of execution, error messages, etc
  
• A settings table that controls the number of parallel threads to use for executing queries
  
• A stored routine …

In This tutorial i want to show you how to create CRUDCreate Read Update Delete using AngularJS in Codeigniter I added few step to create create edit delete lists search and pagination application in your Codeigniter framework In this tutorial through you can make simple crud search and

If you use a storage engine that supports transactions, you probably have faced or heard of deadlock's.

From MySQL Documentation:
“Always be prepared to re-issue a transaction if it fails due to deadlock. Deadlocks are not dangerous. Just try again.”

At work, we had an important job that sometimes were failing due to dead lock. I wanted to enhance it, so it will do what the documentation says ( Retry the transaction ). In order to do that, I wanted to have a scenario where I was able to reproduce the deadlock and the victim transaction was the one from the job I was fixing.

Create a deadlock is simple, you just need to have 2 sessions that each one holds a lock that the other is waiting for. For example:
We have a table that has 4 entries on it (entry 1, entry 2, entry 3, entry 4) and we have 2 …

With our new ClusterControl 1.2.12 release we have added many new features like operational reports, enhanced backup options, SSL Encryption for Galera replication links and improved the support for external tools. One of these tools is CCBot, the ClusterControl chatbot.

CCBot is based on the popular Hubot framework originally created by Github. Github uses Hubot as their DevOps tools of choice and allowing them to do Continuous Integration and Continuous Delivery on their entire infrastructure. So what does Hubot allow you to do?

Hubot

Hubot is a chatbot that has been modelled after Github’s internal bot called hubot. The Hubot framework allows you to quickly create your own bot and extend it with various pre made scripts and …

Let's look at how well MySQL and MariaDB support privileges (part of "access control" in standard terms), compared to other DBMSs, and consequences thereof.

Count the Privileges

I go to the DBMS manuals (here and starting here and here) and I count the privileges. This is like judging a town by the number of traffic lights it claims to have, but I'm trying to get an indicator for how granular the DBMS's "authorization" is.

Number of privileges listed in the manuals

MySQL/MariaDB  Oracle 12c     DB2 9.7   SQL Server 2014
31             240            52        124

Pretty …