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feat(feed): use ctrl-z as cover, move trains meme into post body
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2026-08-20 22:20:56 +01:00
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content/feed/rollback-data-changes/index.md
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@@ -6,7 +6,7 @@ author: 'Data Controller'
authorLink: https://www.linkedin.com/showcase/data-controller-for-sas authorLink: https://www.linkedin.com/showcase/data-controller-for-sas
tags: tags:
- Announcements - Announcements
previewImg: './rollback-trains-meme.jpeg' previewImg: './ctrl-z.jpeg'
--- ---
# Oops! Now You Can Roll Back Data Changes # Oops! Now You Can Roll Back Data Changes
@@ -15,6 +15,8 @@ Despite the MANY checks and guarantees in Data Controller for SAS®, sometimes i
Thankfully, it is now possible to **roll back** data changes to a previous state. Thankfully, it is now possible to **roll back** data changes to a previous state.
![Two trains colliding - the wrong data changes applied](rollback-trains-meme.jpeg)
## How it works in practice ## How it works in practice
Behind the scenes, rollback is not a silent undo. It is a **first-class approval workflow** just like any other edit. When you choose to restore a previous version, the backend - via the [`%mp_stripdiffs`](https://core.sasjs.io/mp__stripdiffs_8sas.html) macro - reads the `MPE_AUDIT` table (or a custom `AUDIT_LIBDS` configured for the table) and computes every difference between the current state and the version you want to go back to. Behind the scenes, rollback is not a silent undo. It is a **first-class approval workflow** just like any other edit. When you choose to restore a previous version, the backend - via the [`%mp_stripdiffs`](https://core.sasjs.io/mp__stripdiffs_8sas.html) macro - reads the `MPE_AUDIT` table (or a custom `AUDIT_LIBDS` configured for the table) and computes every difference between the current state and the version you want to go back to.