Blog Entries

05. 06. 2023 William Calliari Development

About Set Theory, the N-queens Problem, and SQL

The n-queens problem is a common exercise in computer science. Legend has it that a mathematician once declared that women are like the queens in chess, you can’t put eight of them in a room without them trying to kill each other. This obviously isn’t true, and since I’m a feminist, but also a nerd,…

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02. 12. 2021 Omar Bertò APM, ITOA, NetEye

Really Slow Login? It’s Not Always the Network, It Might Be Your SQL Server

By using DMVmonitor to analyze query metrics on an MS SQL server instance, I was able to identify a missing index in the SQL server as the root cause of why an application was starting up quite slowly. In this specific case I was working in a production environment using Microsoft’s Dynamics AX 2012 R3…

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