How to Delete Resource Group in Azure Will it DELETE all Child Resources ?

A resource group is a sort of logical entity that cannot be “stopped.” A resource group is never operational, so you can’t “stop” it. Yes, you may remove a resource group (along with all of its contents), but it’s only for one time. It isn’t a granular resource-management action.

Select a subscription from the Subscriptions page in the Azure portal. Select your desired subscription. Go to Overview and then Cancel Subscription. Follow the on-screen instructions to complete the cancellation procedure.

To prevent a deployment from proceeding, it must be in an unfinished state, such as Provisioning rather than a finished status, like Provisioned or Failed. Use the New-AzDeployment cmdlet to create a deployment at the subscription scope. This command only stops one existing deployment.

Select the resource group you want to delete in the portal. Select Delete Resource Group. Type the name of the resource group to finalize the deletion process.

Make a backup of the SQL Server instance: Go to the vault dashboard > Backup Infrastructure > Protected Servers. To unregister a protected server, go to Protected Servers and select it. You must unregister all of the servers in order to delete the vault. Select Unregister from the right-click menu for the protected server.