📅 最后修改于: 2020-11-29 08:28:24 🧑 作者: Mango
作为数据分析工具，Tableau将每条数据分类为以下四个类别之一：字符串，数字，布尔值和日期时间。从源加载数据后，Tableau会自动分配数据类型。相反，如果满足数据转换规则，您也可以更改某些数据类型。用户必须为计算字段指定数据类型。
下表列出了Tableau支持的数据类型的描述。
| Data Type | Description | Example |
|---|---|---|
| STRING | Any sequence of zero or more characters. They are enclosed within single quotes. The quote itself can be included in a string by writing it twice. |
‘Hello’ ‘Quoted’ ‘quote’ |
| NUMBER | These are either integers or floating points. It is advised to round the floating point numbers while using them in calculations. |
3 142.58 |
| BOOLEAN | They are logical values. |
TRUE FALSE |
| DATE & DATETIME | Tableau recognizes dates in almost all formats. But in case we need to force Tableau to recognize a string as date, then we put a # sign before the data. |
“02/01/2015” “#3 March 1982” |