The Data Charmer

Data seem sometimes to have their own life and will, and they refuse to behave as we wish.
Then, you need a firm hand to tame the wild data and turn them into quiet and obeying pets.

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Sunday, September 24, 2017

Revisiting roles in MySQL 8.0

In my previous article about roles I said that one of the problems with role usage is that roles need to be activated before they kick in. ...

Sunday, May 28, 2017

How to break MySQL InnoDB cluster

A few weeks ago I started experimenting with MySQL InnoDB cluster . As part of the testing, I tried to kill a node to see what happens to th...

Monday, May 08, 2017

Getting to know MySQL InnoDB cluster, the new kid in the block

InnoDB Cluster was released as GA a few weeks ago. I remember the initial announcement of the product at OOW 2016, promising a seamless so...

Sunday, April 30, 2017

Revisiting the hidden MySQL 8.0 data dictionary tables

A few months ago I wrote about showing the hidden tables in MySQL 8 data dictionary . What I presented there was a naïve solution, which I a...

Saturday, March 25, 2017

MySQL 8.0 roles

One of the most interesting features introduced in MySQL 8.0 is roles or the ability of defining a set of privileges as a named role and t...

Sunday, January 22, 2017

MySQL Group Replication vs. Multi Source

In my previous post, we saw the usage of MySQL Group Replication (MGR) in single-primary mode . We know that Oracle does not recommends usin...

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