Testing MySQL/MariaDB/Percona versions with Docker

Giuseppe Maxia has provided some great MySQL docker images . Percona and MariaDB also provide version via Docker Hub. In an attempt to have a consistent means of launching these different images I created the following convenience functions.

  1. Install docker for your OS. See Official Docker installation instructions . 
$ wget https://raw.githubusercontent.com/ronaldbradford/mysql-docker-minimal/master/dockerhelper.sh







$ . ./dockerhelper.sh
Docker Registered functions are:  docker_mysql, docker_percona, docker_mariadb


$ docker_mysql
ERROR: Specify a MySQL version to launch. Valid versions are 5.0 5.1 5.5 5.6 5.7 8.0
$ docker_percona
ERROR: Specify a Percona version to launch. Valid versions are 5.5 5.6 5.7
$ docker_mariadb
ERROR: Specify a MariaDB version to launch. Valid versions are 5.5 10.0 10.1

Tagged with: Databases Docker MySQL

Producing IQR and Outlier statistics with SQL

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The interquartile range (IQR) measures the spread of the middle 50% of a distribution — the distance between the first quartile (Q1) and the third quartile (Q3). Combined with Tukey’s 1.

Producing Mode statistics with SQL

Producing Mode statistics with SQL

The mode is the value or values that appear most frequently in a dataset. Unlike the mean or median, it applies naturally to categorical and ordinal data — star ratings, product codes, survey responses — and reveals what is most common, not what is average.

Extending MySQL Capabilies with UDFs, Plugins and Components - Part 2

Extending MySQL Capabilies with UDFs, Plugins and Components - Part 2

MySQL offers three different approaches to extending the SQL capabilities with the default product you download and install. These are: User Defined Function (UDF) MySQL Manual MySQL Plugin MySQL Manual MySQL Component MySQL Manual In my prior post I provided a new uuidv function that accepted a numeric argument to return a string of the version of UUID specified.