sys.dm_pdw_component_health_alerts (Transact-SQL)
Applies to: 
Analytics Platform System (PDW)
Stores previously issued alerts on appliance components.
| Column Name | Data Type | Description | Range |
|---|---|---|---|
| pdw_node_id | int | Unique identifier of a Analytics Platform System (PDW) node. pdw_node_id, component_id, component_instance_id, alert_id, and alert_instance_id form the key for this view. |
NOT NULL |
| component_id | int | The ID of the component. See sys.pdw_health_components (Transact-SQL). pdw_node_id, component_id, component_instance_id, alert_id, and alert_instance_id form the key for this view. |
NOT NULL |
| component_instance_id | nvarchar(255) | pdw_node_id, component_id, component_instance_id, alert_id, and alert_instance_id form the key for this view. | NOT NULL |
| alert_id | int | The ID for the alert type. See sys.pdw_health_alerts (Transact-SQL). pdw_node_id, component_id, component_instance_id, alert_id, and alert_instance_id form the key for this view. |
NOT NULL |
| alert_instance_id | nvarchar(36) | Identifies an instance of a given alert. pdw_node_id, component_id, component_instance_id, alert_id, and alert_instance_id form the key for this view. |
NOT NULL |
| previous_value | nvarchar(255) | Used when the alert is of type StatusChange. This is the previous component status. Value is NULL for alerts of type Threshold. See sys.pdw_health_alerts (Transact-SQL) for a list of alert types. | NULL |
| current_value | nvarchar(255) | Used when the alert is of type StatusChange. This is the current component status. Value is NULL for alerts of type Threshold. See sys.pdw_health_alerts (Transact-SQL) for a list of alert types. | NULL |
| create_time | datetime | Time and date when the alert was generated. | NOT NULL |
See Also
Azure Synapse Analytics and Parallel Data Warehouse Dynamic Management Views (Transact-SQL)