Best data type to store money values in MySQL

Since money needs an exact representation don’t use data types that are only approximate like float. You can use a fixed-point numeric data type for that like

decimal(15,2)
  • 15 is the precision (total length of value including decimal places)
  • 2 is the number of digits after decimal point

See MySQL Numeric Types:

These types are used when it is important to preserve exact precision, for example with monetary data.

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