Arc extension - Add system table

Author: MikeRayMSFT

docs/sql-server/azure-arc/agent-extension-files.md

@@ -1,18 +1,18 @@
 ---
-title: Azure extension for SQL Server files and registry reference
-description: Lists files and registry keys deployed and managed by the Azure extension for SQL Server.
+title: Azure extension for SQL Server system objects
+description: Lists system objects - files, registry keys, and tables deployed and managed by the Azure extension for SQL Server.
 author: MikeRayMSFT
 ms.author: mikeray
 ms.reviewer: nikitatakru
-ms.date: 04/02/2024
+ms.date: 04/26/2024
 ms.topic: reference
 ---
 
-# Azure extension for SQL Server files & registry reference
+# Azure extension for SQL Server sysetem objects
 
 [!INCLUDE [SQL Server](../../includes/applies-to-version/sqlserver.md)]
 
-This article lists the files and the registry keys created by the installation of Connected machine agent and Azure extension for SQL server.
+This article lists system objects - files, registry keys, and tables deployed and managed by the Azure extension for SQL Server.
 
 ## Windows server files
 
@@ -47,6 +47,15 @@ Base key: `HKEY_LOCAL_MACHINE`
 | `SOFTWARE\Microsoft\Microsoft SQL Server\<InstanceRegistryName>\PurviewConfig` | Purview registry key |
 | `SOFTWARE\Microsoft\SystemCertificates` | Windows certificate registry key |
 
+## Tables
+
+In each instance of SQL Server enabled by Azure Arc, the extension creates the following tables in `msdb`:
+
+- `dq.arcJobTriggers00`
+- `dt.arcJobDefinitions`
+
+These tables store background job definition and execution history. Background jobs perform scheduled and user-initiated actions. These tables allow long-running jobs to automatically resume in the event that the Azure Extension for SQL Server is restarted.
+
 ## Related content
 
 - [Configure Windows service accounts and permissions](../../database-engine/configure-windows/configure-windows-service-accounts-and-permissions.md)

docs/toc.yml

@@ -10411,7 +10411,7 @@ items:
             href: sql-server/azure-arc/permissions-granted-agent-extension.md
           - name: Required permissions
             href: sql-server/azure-arc/configure-windows-accounts-agent.md
-          - name: Files & registry reference
+          - name: System object reference
             href: sql-server/azure-arc/agent-extension-files.md
       - name: Migrate
         items: