In a Microsoft Access database, an exact numeric data type that holds values from –10^28 – 1 through 10^28 – 1. Precision specifies the maximum total number of decimal digits that can be stored, both to the left and right of the decimal point. Scale specifies the maximum number of decimal digits that can be stored to the right of the decimal point. The scale value must be greater than or equal to zero and less than the precision value. The decimal data type is provided for ANSI compatibility.