I have do create a small application that needs a database. core features:
this db will be stored on a nas. multi user support. SQL.
I will probably use c#.
which dbms do you think is the best for me?
You can use SQL Server.
Similar question have been asked many times
you can find your answer here:
https://stackoverflow.com/questions/1757820/c-sharp-mysql-vs-microsoft-sql-server
Which database would you recommend to use with C# (.NET) application?