[MySQL] Decimal(M, D)

M is the maximum number of digits

(the precision). It has a range of 1 to 65. (Older versions of MySQL allowed a range of 1 to 254.)

 

D is the number of digits to the right of the decimal point (the scale).

It has a range of 0 to 30 and must be no larger than M.

 

https://stackoverflow.com/questions/1818046/what-does-m-d-mean-in-decimalm-d-exactly

What does M,D mean in decimal(M,D) exactly?

http://tcpschool.com/mysql/mysql_datatype_numeric

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