In MySQL, is there a difference (in terms of performance) between decimal and double?

Question

In my database, I would like to save the decimal point. The score may have a value from 0 to 10 and values ​​between them, for example 2.3 or 9.4.

I recently found out that int only stores integers, not decimal numbers. I found out that you can use either double or decimal , but what I would like to know is any difference?

I am currently using a decimal number.

Answer 1

Decimal numbers are more accurate, doubles, as a rule, more efficiently.

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Answer 2

INT 0 100? , .

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