ArcGIS中Field 的 Field Precision和Field Scale

（适用于Float 和Double 类型，在GeoDatabase中不需要指定）

Field Scale：小数点右边可以有多少位
Field Precision：小数点左边再加Field Scale可以有多少位
比如：
Field Precision为5，Field Scale为3则

合法输入	非法输入
12.123	123.123
1.123	12.1234
12.1	123.1234

Add Field工具中的注释：
Field Precision (optional)
Describes the number of digits that can be stored in the field. All digits are counted no matter what side of the decimal they are on.
If the input table is a personal or file geodatabase the field precision
value will be ignored.
Field Scale (optional)
Sets the number of decimal places stored in a field. This parameter is only used in Float and Double data field types.
If the input table is a personal or file geodatabase the field scale value will be ignored.

来源：CSDN

作者：Nishkata

链接：https://blog.csdn.net/Nishkata/article/details/103992832