The scale of a numeric is the count of decimal digits in the fractional part, to the right of the decimal point.

We use the following terms below: The precision of a numeric is the total count of significant digits in the whole number, that is, the number of digits to both sides of the decimal point. However, calculations on numeric values are very slow compared to the integer types, or to the floating-point types described in the next section. Calculations with numeric values yield exact results where possible, e.g., addition, subtraction, multiplication. It is especially recommended for storing monetary amounts and other quantities where exactness is required. The type numeric can store numbers with a very large number of digits. The following sections describe the types in detail. The numeric types have a full set of corresponding arithmetic operators and functions. The syntax of constants for the numeric types is described in Section 4.1.2. Up to 131072 digits before the decimal point up to 16383 digits after the decimal point

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