XSD Numeric Data Types
Decimal data types are used for numeric values.
Decimal Data Type
The decimal data type is used to specify a numeric value.
The following is an example of a decimal declaration in a schema:
<xs:element name="prize" type="xs:decimal"/> |
An element in your document might look like this:
<prize>999.50</prize> |
Or it might look like this:
<prize>+999.5450</prize> |
Or it might look like this:
<prize>-999.5230</prize> |
Or it might look like this:
<prize>0</prize> |
Or it might look like this:
<prize>14</prize> |
Note: The maximum number of decimal digits you can specify is
18!
Integer Data Type
The integer data type is used to specify a numeric value without a fractional component.
The following is an example of an integer declaration in a schema:
<xs:element name="prize" type="xs:integer"/> |
An element in your document might look like this:
<prize>999</prize> |
Or it might look like this:
<prize>+999</prize> |
Or it might look like this:
<prize>-999</prize> |
Or it might look like this:
<prize>0</prize> |
Numeric Data Types
Note that all of the data types below derive from the Decimal data type (except for decimal itself)!
| Name | Description |
|---|---|
| byte | A signed 8-bit integer |
| decimal | A decimal value |
| int | A signed 32-bit integer |
| integer | An integer value |
| long | A signed 64-bit integer |
| negativeInteger | An integer containing only negative values ( .., -2, -1.) |
| nonNegativeInteger | An integer containing only non-negative values (0, 1, 2, ..) |
| nonPositiveInteger | An integer containing only non-positive values (.., -2, -1, 0) |
| positiveInteger | An integer containing only positive values (1, 2, ..) |
| short | A signed 16-bit integer |
| unsignedLong | An unsigned 64-bit integer |
| unsignedInt | An unsigned 32-bit integer |
| unsignedShort | An unsigned 16-bit integer |
| unsignedByte | An unsigned 8-bit integer |
博客主要介绍了 XSD 数字数据类型,包括十进制数据类型和整数数据类型。十进制数据类型用于指定数值,最多可指定 18 位小数;整数数据类型用于指定无小数部分的数值。此外,还提到除十进制本身外,其他数据类型均派生自十进制数据类型。
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