# Général

### Dans cette section

* [Concat](https://help.qlik.com/talend/fr-FR/data-mapper-functions-reference-guide/8.0-R2025-04/concat-function)
* [ConcatFirstPresentValue](https://help.qlik.com/talend/fr-FR/data-mapper-functions-reference-guide/8.0-R2025-04/concatfirstpresentvalue-function)
* [ConcatLastPresentValue](https://help.qlik.com/talend/fr-FR/data-mapper-functions-reference-guide/8.0-R2025-04/concatlastpresentvalue-function)
* [Constant](https://help.qlik.com/talend/fr-FR/data-mapper-functions-reference-guide/8.0-R2025-04/constant-function)
* [ConstantIfBlank](https://help.qlik.com/talend/fr-FR/data-mapper-functions-reference-guide/8.0-R2025-04/constantifblank-function)
* [MapValues](https://help.qlik.com/talend/fr-FR/data-mapper-functions-reference-guide/8.0-R2025-04/mapvalues-function)
* [ValueMapping](https://help.qlik.com/talend/fr-FR/data-mapper-functions-reference-guide/8.0-R2025-04/valuemapping-function)
* [Java](https://help.qlik.com/talend/fr-FR/data-mapper-functions-reference-guide/8.0-R2025-04/java-function)
* [XPathFunction](https://help.qlik.com/talend/fr-FR/data-mapper-functions-reference-guide/8.0-R2025-04/xpathfunction-function)
* [DatabaseLookup](https://help.qlik.com/talend/fr-FR/data-mapper-functions-reference-guide/8.0-R2025-04/databaselookup-function)
* [DatabaseLookupAndUpdate](https://help.qlik.com/talend/fr-FR/data-mapper-functions-reference-guide/8.0-R2025-04/databaselookupandupdate-function)
* [DatabaseColumn](https://help.qlik.com/talend/fr-FR/data-mapper-functions-reference-guide/8.0-R2025-04/databasecolumn-function)
* [DatabaseFunction](https://help.qlik.com/talend/fr-FR/data-mapper-functions-reference-guide/8.0-R2025-04/databasefunction-function)
* [Exemples de fonctions générales](https://help.qlik.com/talend/fr-FR/data-mapper-functions-reference-guide/8.0-R2025-04/general-functions-examples)