# EntréeSortie et base de données

### Dans cette section

* [ReadMapInput](https://help.qlik.com/talend/fr-FR/data-mapper-functions-reference-guide/8.0-R2024-04-and-earlier/readmapinput-function)
* [ReadURL](https://help.qlik.com/talend/fr-FR/data-mapper-functions-reference-guide/8.0-R2024-04-and-earlier/readurl-function)
* [ReadNested](https://help.qlik.com/talend/fr-FR/data-mapper-functions-reference-guide/8.0-R2024-04-and-earlier/readnested-function)
* [ReadMessage](https://help.qlik.com/talend/fr-FR/data-mapper-functions-reference-guide/8.0-R2024-04-and-earlier/readmessage-function)
* [ReadMessageProperties](https://help.qlik.com/talend/fr-FR/data-mapper-functions-reference-guide/8.0-R2024-04-and-earlier/readmessageproperties-function)
* [WriteMapOutput](https://help.qlik.com/talend/fr-FR/data-mapper-functions-reference-guide/8.0-R2024-04-and-earlier/writemapoutput-function)
* [WriteURL](https://help.qlik.com/talend/fr-FR/data-mapper-functions-reference-guide/8.0-R2024-04-and-earlier/writeurl-function)
* [WriteMessage](https://help.qlik.com/talend/fr-FR/data-mapper-functions-reference-guide/8.0-R2024-04-and-earlier/writemessage-function)
* [WriteMessageProperties](https://help.qlik.com/talend/fr-FR/data-mapper-functions-reference-guide/8.0-R2024-04-and-earlier/writemessageproperties-function)
* [DatabaseSelect](https://help.qlik.com/talend/fr-FR/data-mapper-functions-reference-guide/8.0-R2024-04-and-earlier/databaseselect-function)
* [DatabaseJoin](https://help.qlik.com/talend/fr-FR/data-mapper-functions-reference-guide/8.0-R2024-04-and-earlier/databasejoin-function)
* [DatabaseInsert](https://help.qlik.com/talend/fr-FR/data-mapper-functions-reference-guide/8.0-R2024-04-and-earlier/databaseinsert-function)
* [DatabaseUpdate](https://help.qlik.com/talend/fr-FR/data-mapper-functions-reference-guide/8.0-R2024-04-and-earlier/databaseupdate-function)