Running Ansible inside a dedicated host
Why Ansible should run in a dedicated host, not on devops personal laptops. Continue reading Running Ansible inside a dedicated host
MariaDB/MySQL IS NULL conditions and indexes
It is quite common to use an equality condition and an IS NULL condition on the same columns. Unfortunately, this could make queries very slow. Continue reading MariaDB/MySQL IS NULL conditions and indexes
Monitoring that AUTO_INCREMENT values won’t reach the limit
AUTO_INCREMENT primary keys are useful, because they save usthe trouble to generate a unique value for every row, delegating this task to the database. But when we reach the limit we need to take some action, or we won’t be able to insert more rows. Continue reading Monitoring that AUTO_INCREMENT values won’t reach the limit
5 benefits of Infrastructure As Code
Automating deployments with the Architecture As Code paradigm has several benefits. Let’s see some of them. Continue reading 5 benefits of Infrastructure As Code
MySQL/MariaDB: use SQL properly to run less queries
Reducing the number of queries is important with any DBMS. There are two reasons for this: reducing the latency of applications; and reducing the workload for the database servers. Continue reading MySQL/MariaDB: use SQL properly to run less queries
The risks of MySQL release policy
MySQL 8.0 and 5.7 follow a new release policy that exposes users to important risks. They broke compatibility with Xtrabackup (again). Continue reading The risks of MySQL release policy
When to use NULLable columns in relational databases
SQL columns can be NULL or NOT NULL. Let’s see what are the good and bad reasons to declare NULL columns. Continue reading When to use NULLable columns in relational databases
READ ONLY transactions in MariaDB and MySQL
Transactions can be read only. This article explains what read only transactions are and why we should use them when appropriate. Continue reading READ ONLY transactions in MariaDB and MySQL
Using CONNECT to access remote MariaDB or MySQL tables
This article discusses how to access data from a remote table using the CONNECT storage engine, in MariaDB. Continue reading Using CONNECT to access remote MariaDB or MySQL tables
A MariaDB Server Fest 2020 review
MariaDB Server Fest 2020 was a great online event for the MariaDB community. This is a review from Vettabase. Continue reading A MariaDB Server Fest 2020 review