decimal and numeric
Numeric data types with fixed precision and scale.
decimal[(p[, s])] and numeric[(p[, s])]
Fixed precision and scale numbers. When maximum precision is used, valid values are from - 10^38 +1 through 10^38 - 1. The SQL-92 synonyms for decimal are dec and dec(p, s).
p (precision)
Specifies the maximum total number of decimal digits that can be stored, both to the left and to the right of the decimal point. The precision must be a value from 1 through the maximum precision. The maximum precision is 38.
s (scale)
Specifies the maximum number of decimal digits that can be stored to the right of the decimal point. Scale must be a value from 0 through p. The default scale is 0; therefore, 0 <= s <= p. Maximum storage sizes vary, based on the precision.
Precision | Storage bytes |
---|---|
1 - 9 | 5 |
10-19 | 9 |
20-28 | 13 |
29-38 | 17 |