Workspace I Ds
Query
//Run the following in Azure Resource Graph Explorer to show all Workspace IDs. From LucyIsOpal (https://twitter.com/LucyIsOpal)
resources
| where type == "microsoft.operationalinsights/workspaces"
| where properties['retentionInDays'] == "90"
| project properties['customerId']Explanation
This query is used to find all the Workspace IDs for Microsoft Operational Insights workspaces with a retention period of 90 days. It then projects the customer ID for each workspace.
Details

Rod Trent
Released: April 18, 2023
Tables
resources
Keywords
ResourcesMicrosoft.OperationalInsights/WorkspacesPropertiesRetentionInDaysProjectCustomerId
Operators
wheretype=="microsoft.operationalinsights/workspaces"properties['retentionInDays']project['customerId']