Queries management

.show queries

The .show queries command returns a list of queries that have reached a final state, and that the user invoking the command has access to see:


.show queries

  • Returns a table containing previously run queries and their completion statistics. You can use KQL queries to explore the results.
  • Note: the text of the query is truncated after 64KB.


The output schema is as follows:

ColumnName ColumnType Description
ClientActivityId string Client ID of the request
Text string Query text, truncated at 64 KB
Database string Name of the database on which the query was executed
StartedOn datetime Timestamp when query execution started
LastUpdatedOn datetime Timestamp of the last status update
Duration timespan Server-side query duration
State string Completion state
RootActivityId guid Server-side request ID
User string User ID that ran the query
FailureReason string Failure reason. If query succeeded, this field is empty.
TotalCpu timespan Total CPU consumed by the query
CacheStatistics dynamic Data-cache usage statistics
Application string Name of the application that was used to run the query
MemoryPeak long Peak memory statistics
ScannedExtentsStatistics dynamic Statistics of the scanned shards (extents)
Principal string AAD-ID of the user or application that was used to run the query
ClientRequestProperties dynamic Client request properties
ResultSetStatistics dynamic Statistics describing returned data set
WorkloadGroup string Name of the workload group that query was associated with


.show queries 
| project Text, Duration
| take 3
Text Duration
T |count 00:00:00
T | summarize count() by column1 00:00:00.0312564
T | take 10 00:00:00.0155632

.show running queries

The .show running queries command returns a list of currently-executing queries by the user, or by another user, or by all users.


.show running queries
  • Returns the currently-executing queries by the invoking user (requires read access).

.cancel query

The .cancel query command starts a best-effort attempt to cancel a specific running query.

  • Cluster admins can cancel any running query.
  • Database admins can cancel any running query that was invoked on a database they have admin access on.
  • All principals can cancel running queries that they started.


.cancel query ClientRequestId [with ( reason = ReasonPhrase )]

  • ClientRequestId is the value of the running query's ClientRequestId property, as a string literal.

  • ReasonPhrase: If specified, a string literal that describes the reason for canceling the running query. This information is included in the query results if it's successfully canceled.


.cancel query "KE.RunQuery;8f70e9ab-958f-4955-99df-d2a288b32b2c"