Introduction
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The SQL In-Depth Days provide a close review and a good practice course for those who have mastered the basics of SQL and have used the language for some time, the basic insights of which include learning by doing. The exercises in the course increase in difficulty towards the end of the course, and do what they are meant to do: they increase their appetite to try and vary what they have learned later in their own projects.
Kimmo Lassila, System Designer, City of Helsinki, National Board of Education
Ari Hovi’s SQL Advanced Days course has been held in our company several times. Ari’s professionalism and flexibility have enabled customized SQL Advanced Days courses for our needs in our own environment. Participants have praised the course for being one of the most rewarding courses in their careers! Participants have been really pleased with the delivery of the course. For me, this is perhaps best reflected in the fact that our long-standing application developers have also learned something new and also told others about it. of the course.
Jani Nissinen, Section Manager, Tietokarhu Oy
Educator:

LAURI PIETARINEN
Relational Consulting OyLauri Pietarinen is an experienced database and SQL expert and works for Relational Consulting Oy.
He has implemented several demanding database implementations and data warehousing solutions and consults companies on extensive data projects in Finland and Sweden. Lauri is one of Finland’s most experienced SQL experts.
In addition, Lauri is perhaps the best indexing expert in Finland and has led an in-depth indexing course developed by Tapio Lahdenmäki for years, including e.g. In Denmark and Iceland. He often speaks at international database conferences about SQL, relational databases, and indexing.
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