Tips from the MySQL Conference

What would be great if people could create a single line (one tip) from each talk and we could aggregate these for an executive summary for tech people.

This was prompted from only a few minutes looking in on Baron Shwartz’s EXPLAIN presentation. What I didn’t know was.

EXPLAIN EXTENDED SELECT …; SHOW WARNINGS; gives the rewritten SQL query

If only I had time to whip out an application on my Google AppEngine and get twitter feeds with say a mysqlconf keyword. Perhaps we need a all night BoF hackfest to do it.

Tagged with: Databases MySQL MySQL User Conferences MySQL Users Conference 2008

Producing Skewness statistics with SQL

Producing Skewness statistics with SQL

Skewness measures the asymmetry of a distribution. A perfectly symmetric distribution has a skewness of zero. A positive skew (right-skewed) means the tail extends to the right — a small number of high values pull the mean above the median.

Exploring the vsql-ai extension

Exploring the vsql-ai extension

The vsql-ai extension adds AI prompt capabilities and text embeddings directly in SQL queries, with support for Anthropic Claude , Google Gemini , OpenAI ChatGPT , or a local LLM such as Ollama .

Producing Chi-Squared statistics with SQL

Producing Chi-Squared statistics with SQL

The Chi-Squared test is one of the most widely used statistical tests for categorical data. It comes in two flavors: the goodness-of-fit test asks whether an observed frequency distribution matches an expected one, while the test of independence asks whether two categorical variables are associated with each other.