# Value types

This reference gives an overview of the usage of values in TypeQL.

  

Name

TypeQL

Description

[Boolean](boolean/index.md)

`boolean`

A logical boolean (`true` / `false`).

[Integer](integer/index.md)

`integer`

A 64-bit signed integer.

[Double](double/index.md)

`double`

A double precision IEEE 754 floating point number.

[Decimal](decimal/index.md)

`decimal`

A fixed point signed decimal number.

[String](string/index.md)

`string`

A UTF-8 character string type.

[Date](date/index.md)

`date`

An ISO 8601 compliant date type.

[Datetime](datetime/index.md)

`datetime`

An ISO 8601 compliant date and time type.

[DatetimeTZ](datetimetz/index.md)

`datetime-tz`

An ISO 8601 compliant date and time type with time zone information.

[Duration](duration/index.md)

`duration`

An ISO 8601 compliant duration type.

[@meta](../annotations/meta/index.md) [Boolean](boolean/index.md)

[Edit on GitHub](https://github.com/typedb/typedb-docs/edit/3.x-development/typeql-reference/modules/ROOT/pages/values/index.adoc) Edit this page on GitHub.