Lansweeper reports are made in a standard SQL editor. We don't have any SQL tutorials.
Since there are many free online courses which teach the basics of SQL we generally advice people interested in custom reports to try those.
https://www.codecademy.com/learn/learn-sql
https://www.w3schools.com/sql/
Additionally, you can find all our built-in reports and some community reports in the
Reports Center here on the forum. You can use those as a starting point or inspiration for your own reports.
You can also use our
database dictionary to find what is stored in the database tables if you are looking for specific information.
Lastly, you can also ask for helps with reports you are building in
this forum category.