A lot of students learn spreadsheet management before database management. Their similarities can cause a lot of negative effects when learning database management. In this article, we consider these similarities and explain what can cause problems. First, we analyse the basic concepts such as table, database, row, cell, reference, etc. Then, we discuss differences from the point of view of the metadata. In our article, it is very important that we review differences which concern managing stored and calculated data. Finally, we mention sorting and filtering features.