> For the complete documentation index, see [llms.txt](https://docs.wem.io/platform/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.wem.io/platform/wemreference/functions/concepts/getchildren.md).

# GetChildren

{% hint style="info" %}
The **`GetChildren()`** function returns all the child concepts of a concept.

[*Read general information about Concepts and Ontology*](/platform/wemmodeler/concepts-and-concept-queries/concepts.md)

This function is NOT SQL compatible. For more information about SQL compatibility, see our [documentation](/platform/wemreference/sql-compatibility.md).
{% endhint %}

{% hint style="success" %}
Returns a concept set that contains the direct child concepts of a concept.

An <mark style="color:red;">unknown</mark> value is returned if the <mark style="color:blue;">concept</mark> has no children or the given parameter is unknown.
{% endhint %}

{% hint style="warning" %}
The [GetDescendants()](https://wem.io/documentation/reference/functions/getchildren/getdescendants) function includes all descendants (multiple levels).
{% endhint %}

### Syntax

<details>

<summary><code>GetChildren(</code><mark style="color:blue;"><code>concept</code></mark><code>)</code></summary>

`GetChildren('World regions'.'EMEA')`\
\=>*Result: {* MENA, CIS, DACH }

`GetChildren('Color')`\
\&#xNAN;*=>Result: { Blue, Red, Yellow, Green, Orange, Purple, Amber, Magenta, Teal, Violet }*

GetChildren('Color') where concept:'PrimaryColor' = true\
\&#xNAN;*=>Result: { Blue, Red, Yellow }*

`GetChildren('Color'.'Green')`\
\=>*Result: unknown*

`GetChildren(unknownconcept)`\
\=>*Result: unknown*

</details>

### Parameters

<table><thead><tr><th width="181.70825474075613">Name</th><th width="150">Type</th><th width="150" align="center">Required</th><th width="248.15953250810662">Description</th><th data-hidden>Required?</th></tr></thead><tbody><tr><td><mark style="color:blue;"><code>concept</code></mark></td><td>concept</td><td align="center"><span data-gb-custom-inline data-tag="emoji" data-code="2611">☑️</span></td><td>a single concept, either literal or as expression</td><td>yes</td></tr></tbody></table>


---

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