MySQL Conference & Expo

The MySQL Conference has started. It will be a long week, still yet to prepare my own presentation for tomorrow. Old friendships already renewed, plenty of faces to names already, and we have yet to hit the first session.

Today is tutorial day, this morning I’m with Paul McCullagh Mr PBXT in Scaling and High Availablilty Architectures by Jeremy Cole and Eric Bergen of Proven Scaling

Tagged with: General MySQL MySQL Conference &Amp; Expo 2007

Producing IQR and Outlier statistics with SQL

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

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

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.