The SharePoint Online microservice uses Cosmo DB for SQL. This topic takes through the steps required to provision an account in Azure.
Provision a CosmosDB account
Log in to your Azure portal as a user with the necessary permissions to provision a database.
In Azure, navigate to All services and select Azure Cosmos DB.
Click Add.
Under Project Details, select a Subscription and create a new Resource Group.
Under Instance Details, do the following:
Account Name — Enter a name for database account
API — Core (SQL)
Location — Select the appropriate geographic location
Capacity mode — Provisioned throughput
Click Review + Create.
Review the settings and make any adjustments needed for your environment and then click Create.