numeric是整数还是小数,长度多少
时间: 2023-03-01 19:40:51 浏览: 72
"Numeric" is a term that can refer to either an integer (a whole number) or a floating-point number (a number with a fractional part). The exact definition of "numeric" can vary depending on the context and the programming language being used.
As for length, the concept of length is not directly applicable to numeric data types. However, you can usually specify the number of digits or the range of values that a numeric value can take. For example, in some programming languages, you can specify the number of bytes used to store a numeric value, which determines the maximum and minimum values that the value can represent.
相关问题
oracle numeric
在Oracle中,"numeric"是一个数据类型,它是用来存储数值的。在Oracle中,"numeric"实际上是"number"数据类型的一个子集。"numeric"数据类型可以存储整数和小数,它的精度和刻度可以根据需要进行设置。根据引用\[1\]中的规则,当一个数的整数部分的长度大于精度减去刻度时,Oracle会报错;当一个数的小数部分的长度大于刻度时,Oracle会进行舍入。在引用\[2\]中的C#代码中,可以看到在OracleCommand中使用了"numeric"数据类型的参数。这些参数的精度和刻度可以根据实际需求进行设置。总的来说,"numeric"数据类型在Oracle中用于存储数值,并且可以根据需要设置精度和刻度。
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sql server numeric
类型的最大值是多少?
SQL Server Numeric类型的最大值和精度取决于我们定义数据类型时提供的参数。在SQL Server中,有两种Numeric类型:Numeric和Decimal。Numeric和Decimal都是固定长度和精度的数据类型。Numeric是用于存储整数值的数据类型,而Decimal用于存储具有可变精度和可变小数位数的值。
当使用Numeric和Decimal类型时,我们必须提供两个参数:精度(即数字总位数)和小数位数(即数字中小数点后的位数)。最大整数值的取值范围在-10(精度- 1)到10(精度- 1)之间。例如,如果我们定义Numeric(5,2),则我们可以存储-999.99到999.99之间的任何值。
因此,真正的答案取决于我们定义Numeric类型时提供的参数。