> For the complete documentation index, see [llms.txt](https://doc.simax.fr/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://doc.simax.fr/parametrage/maintenance/colonne-pour-les-calculs-recalcules-non-existante-en-base-de-donnees.md).

# Colonne pour les calculs recalculés non existante en base de données

<p align="right"><em>Nouveauté valide à partir de la version 12</em></p>

&#x20;A partir de la version 12, les colonnes pour les calculs recalculés ne sont pas créées dans la base de données (BDD). Cela permet de gagner de l'espace disque sur le serveur.

&#x20;Lorsqu'un calcul devient recalculé (coche active), il est conseillé de faire une maintenance pour gagner de l'espace disque.

Lorsqu'un calcul devient stocké (coche inactive), il est conseillé de faire une maintenance pour gagner en performance (car sinon les valeurs sont stockées dans enplus).


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