# Data Types

> StackQL data types: the types used for resource properties and parameters in queries and results, and how they map to provider API schemas.

Source: https://stackql.io/language-spec/data-types

StackQL data types are used to represent values for input or output fields (properties or parameters) used within cloud resources.  StackQL data types are listed in the table below:

| StackQL type | Description | Example |
|--|--|--|
| `string` | sequence of Unicode characters enclosed by single quotes | `'mybucket'` |
| `array` | ordered collection of values, surrounded by brackets `[ ]`, separated by a comma | `[0,1,2]` |
| `object` | unordered set of zero or more name/value pairs inserted between `{ }` and separated by a comma | `{"name": "mydb"}` |
| `boolean` | `true` or `false`, boolean values are not surrounded within quotes and will be treated as string values | `true` |
| `integer` | a whole number that can be positive, negative, or zero | `2` |
| `double` | double-precision floating-point number, can be positive or negative | `0.95` |
   
   
> StackQL data types map to the data types exposed in the APIs for all major cloud providers.