list linked in a tag in TinyDB

MIT App Inventor Help
1

I have tags with lists in TinyDB. If I change only one element in the list linked to the tag, will the other elements remain unchanged?
For example, on the label named student, there is the student's class and school number. If I just change the student's class, will the school number on the tag change or disappear?

2

This approach:

image

will only change the value for index 2, leaving the others unchanged.

Your list will then be [0,10,2]

3

Ekran görüntüsü 2024-10-12 193736
Ekran görüntüsü 2024-10-12 1937361522×540 41.2 KB

What if I change the first value in the list using the blocks in the picture and leave the second value as the same value? Would it be better if I did this without using the variables block, or would it be better for my program if I did what you said?