Tableau Tutorial
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- Tableau - Data Terminology
- Tableau - Show Me
- Tableau - Data Types
- Tableau - File Types
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Tableau Data Sources
- Tableau - Data Blending
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- Tableau - Extracting Data
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- Tableau - Data Sources
Tableau Worksheets
- Tableau - Paged Workbook
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Tableau Calculations
- Tableau - LOD Expressions
- Tableau - Table Calculations
- Tableau - Date Calculations
- Tableau - String Calculations
- Tableau - Numeric Calculations
- Tableau - Functions
- Tableau - Operators
Tableau Sort & Filters
- Tableau - Filter Operations
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Tableau Advanced
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Tableau - Data Types
Tableau - Data Types
As a data analysis tool, Tableau classifies every piece of data into one of the four categories namely - String, Number, Boolean and datetime. Once data is loaded from the source, Tableau automatically assigns the data types. Contrarily, you can also change some of the data types if it satisfies the data conversion rule. The user has to specify the data type for calculated fields.
Following table psts the description of data types supported by Tableau.
| 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" |