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sqlserver中的decimal或者numeric的精度问题 - 站长搜索
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sqlserver中的decimal或者numeric的精度问题

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2022-09-23 20:26:23 转载来源: 网络整理/侵权必删

何谓精度:最多可以存储的十进制数字的总位数,包括小数点左边和右边的位数。该精度必须是从1到最大精度38之间的值

何谓精度:最多可以存储的十进制数字的总位数,包括小数点左边和右边的位数。该精度必须是从 1 到最大精度 38 之间的值。默认精度为 18。
小数位数:小数点右边可以存储的十进制数字的最大位数。小数位数必须是从 0 到 p 之间的值。仅在指定精度后才可以指定小数位数。默认的小数位数为 0;因此,0 <= s <= p。最大存储大小基于精度而变化。
在c sharp中调用传递SqlParameter参数时也需要制定参数的精度和小数的位数,如下面的例子声明一个精度为18小树位数为2的decimal类型参数:
复制代码 代码如下:

SqlParameter parm = new SqlParameter("@parmName", SqlDbType.Decimal);
parm.Precision = 18;
parm.Scale = 2;

标签: sqlserver 中的 decimal 或者 numeric 精度 问题


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