The Effective MySQL Book Series

Effective MySQL: Optimizing SQL StatementsAnnounced on Sunday at Oracle Open World 2011 is the release of the Effective MySQL book series starting with the “Optimizing SQL Statements” title. The goal of the Effective MySQL series is a highly practical, concise and topic specific reference providing applicable knowledge to use on each page. A feedback comment provided today was “no fluff” which is great comment to re-enforce the practical nature of the series.

Details on the Effective MySQL Optimizing SQL Statements page include a sample chapter , code downloads and purchase links for print and e-books at Amazon , McGraw-Hill and Barnes & Noble .

Tagged with: Databases EffectiveMySQL MySQL

Producing IQR and Outlier statistics with SQL

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

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.