max() (aggregation function)
Applies to: ✅ Microsoft Fabric ✅ Azure Data Explorer ✅ Azure Monitor ✅ Microsoft Sentinel
Finds the maximum value of the expression in the table.
Note
This function is used in conjunction with the summarize operator.
Syntax
max(expr)
Learn more about syntax conventions.
Parameters
| Name | Type | Required | Description |
|---|---|---|---|
| expr | string |
✔️ | The expression for which the maximum value is determined. |
Returns
Returns the value in the table that maximizes the specified expression.
Tip
This gives you the max on its own. If you want to see other columns in addition to the max, use arg_max.
Example
This example returns the last record in a table by querying the maximum value for StartTime.
StormEvents
| summarize LatestEvent=max(StartTime)
Output
| LatestEvent |
|---|
| 2007-12-31T23:53:00Z |