French independent SQL server expert, with 20 years experience. An old-fashioned relational database fan, open to NoSQL wanderings, but without ORM, please. More geared towards database development than administration, but heneeds to act as a DBA most of the time. He has authored several books, about SQL Server optimization, SQL Server security, and NoSQL. He has also authored a video training at Pluralsight, and many video trainings in French at Linkedin Learning. He could have been a cook, a writer or a mountain guide. What does he do in the database business ?