An error occurred while saving the commentNaomi Rtitsor commented
Here I wanna share with you some tips and tricks that helped me before. As with many things in life, the basics are easy, and the more advanced stuff is difficult. I recommend looking for phone apps that let you practice with data tables. The ones I found useful are SQL server transaction log https://www.devart.com/dbforge/sql/transaction-log/ , and it is so easy to understand!