How much space you save depends on the number of decimal or numeric columns, the data distributions, and the size of the table(s).
同浮点型相比,decimal类型具有更高的精度和更小的范围,这使它适合于财务和货币计算。
Compared to floating-point types, the decimal type has more precision and a small range, which makes it suitable for financial and monetary calculations.
Contrary to the float and double data types, decimal fractional numbers such as 0.1 can be represented exactly in the decimal representation.
Decimal值类型是适合于需要大量的重要的整数和小数位数和无舍入误差的财务计算。
The Decimal value type is appropriate for financial calculations requiring large numbers of significant integral and fractional digits and no round-off errors.
Unlike with the float and double data types, decimal fractional numbers such as 0.1 can be represented exactly in the decimal representation.
Double相比,decimal类型具有更高的精度和更小的范围,它适合于财务和货币计算。
Compared to floating-point types, the decimal type has more precision and a smaller range, which makes it appropriate for financial and monetary calculations.
Libraries in 135+ countries use the Dewey Decimal Classification(DDC) system(or classification systems based on the DDC) to organize their collections for their users.
Thus, conversions from the floating-point types to decimal might produce overflow exceptions, and conversions from decimal to the floating-point types might cause loss of precision.
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