Lukas Vileikis is an ethical hacker, a MySQL database administrator, and a frequent conference speaker. He has worked on MySQL since late 2013, and since 2014, has found and responsibly disclosed security flaws in some of the most visited websites in Lithuania and abroad. Lukas honed his database administration skills while building and administering one of the biggest data breach search engines in the world: [...], which is used by cyber security companies, individuals, as well as prominent universities worldwide. The website allows people to check whether they're at risk of identity theft and then protect themselves on the web, and protects more and more people from all walks of life every single day. BreachDirectory has been running on MySQL ever since its inception and has been at the center of numerous awards, including at World Summit Awards 2020, where BreachDirectory was a national nominee nominated by the Lithuanian government to represent Lithuania against an international jury evaluating the best digital innovations in the world; and at Technorama 2021, a tech product-based event organized by Kaunas University of Technology (KTU), where BreachDirectory was nominated as the best product in the security space by Bentley Systems.

Outside of BreachDirectory, Lukas produces content situated around database management systems. He has written articles for Severalnines, Redgate, DbVisualizer, Arctype (now part of ClickHouse), dbWatch, and other companies, as well as managed writers in some of those companies (DbVisualizer, Arctype.) Some of his content has been also replicated by MySQL, MariaDB, and Percona. He also runs a YouTube channel under the moniker "Database Dive," where he distills complex database topics into relatable explanations in video format. Lukas also talks and runs workshops at conferences like Percona LIVE, MariaDB Server Fest and MariaDB Unconferences, DevTalks Romania in Bucharest, Big Data Conference Europe and Build Stuff in Vilnius, he has taken part in "Dirty AI" and other software events in Spain, as well as spoken remotely at events like Nerdearla, Conf42, Software Architecture Conference, and others.

Lukas also runs his own blog at [...] and can be reached by email at [...]

Part 1 The Basics of MySQL.- Chapter 1: The World of MySQL.- Chapter 2: Individual Storage Engines.- Part 2 Breaking MySQL.- Chapter 3: What Breaks MySQL?.- Chapter 4: How You Broke Your Queries.- Chapter 5: Understanding Query Components.- Chapter 6: Understanding Your Server.- Part 3 Optimizing MySQL.- Chapter 7: Optimizing MySQL for Your Server.- 8: Optimizing Specific Storage Engines, Schemas, and Data Types.- Chapter 9: Optimizing Queries.- Chapter 10: Optimizing MySQL or Big Data.- Chapter 11: Indexing MySQL.- Chapter 12: Optimizing Partitions.- Chapter 13: Optimizing Backups and Recovery.- Chapter 14: Optimizing Replication.- Chapter 15: Optimizing for Security.- Part 4 Securing MySQL.- Chapter 16: The World of Security in MySQL.- Chapter 17: Securing Your Database Instance.- Chapter 18.- Security and Big Data.- Chapter 19: Appendices: Things You Wish You Knew, but Don't.- 19.1 Schrodinger's Tables in MySQL.- 19.2 Having Fun with ibdata1.- 19.3 Having Fun with Indexes.- 19.4 Query that Breaks MySQL 5.7.- 19.5 Reliably Using MyISAM.- 19.6 Building APIs and Interacting with Big Data.- 1.7 Preparing for the Future.- 19.8 Summary.