mysql - MySQL Data Type to Store Negative Number

Question

I have a rating system that ranges from -1 to 5 through 0.

So i need to store the following values

-1
0
1
2
3
4
5

Which is the best data type considering i want to fetch a total count of each value (not sum) ?

Answer 1

我会去TINYINT，记录在这里。它占用 1 个字节的存储空间，其范围是 -128 到 127。