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Discover Events Data Columns

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The Discover Events category has the following event classes:

  • Discover Begin class

  • Discover End class

The following tables list the data columns for each of these event classes.

Discover Begin Class—Data Columns

Column Name Column Id Column Type Column Description
EventClass 0 1 Event Class is used to categorize events.
EventSubclass 1 1 Event Subclass provides additional information about each event class. The following are valid Sub Class Id/Sub Class Name value pairs:
0: DBSCHEMA_CATALOGS
1: DBSCHEMA_TABLES
2: DBSCHEMA_COLUMNS
3: DBSCHEMA_PROVIDER_TYPES
4: MDSCHEMA_CUBES
5: MDSCHEMA_DIMENSIONS
6: MDSCHEMA_HIERARCHIES
7: MDSCHEMA_LEVELS
8: MDSCHEMA_MEASURES
9: MDSCHEMA_PROPERTIES
10: MDSCHEMA_MEMBERS
11: MDSCHEMA_FUNCTIONS
12: MDSCHEMA_ACTIONS
13: MDSCHEMA_SETS
14: DISCOVER_INSTANCES
15: MDSCHEMA_KPIS
16: MDSCHEMA_MEASUREGROUPS
17: MDSCHEMA_COMMANDS
18: DMSCHEMA_MINING_SERVICES
19: DMSCHEMA_MINING_SERVICE_PARAMETERS
20: DMSCHEMA_MINING_FUNCTIONS
21: DMSCHEMA_MINING_MODEL_CONTENT
22: DMSCHEMA_MINING_MODEL_XML
23: DMSCHEMA_MINING_MODELS
24: DMSCHEMA_MINING_COLUMNS
25: DISCOVER_DATASOURCES
26: DISCOVER_PROPERTIES
27: DISCOVER_SCHEMA_ROWSETS
28: DISCOVER_ENUMERATORS
29: DISCOVER_KEYWORDS
30: DISCOVER_LITERALS
31: DISCOVER_XML_METADATA
32: DISCOVER_TRACES
33: DISCOVER_TRACE_DEFINITION_PROVIDERINFO
34: DISCOVER_TRACE_COLUMNS
35: DISCOVER_TRACE_EVENT_CATEGORIES
36: DMSCHEMA_MINING_STRUCTURES
37: DMSCHEMA_MINING_STRUCTURE_COLUMNS
38: DISCOVER_MASTER_KEY
39: MDSCHEMA_INPUT_DATASOURCES
40: DISCOVER_LOCATIONS
41: DISCOVER_PARTITION_DIMENSION_STAT
42: DISCOVER_PARTITION_STAT
43: DISCOVER_DIMENSION_STAT
44: MDSCHEMA_MEASUREGROUP_DIMENSIONS
45: DISCOVER_XEVENT_PACKAGES
46: DISCOVER_XEVENT_OBJECTS
47: DISCOVER_XEVENT_OBJECT_COLUMNS
48: DISCOVER_XEVENT_SESSION_TARGETS
49: DISCOVER_XEVENT_SESSIONS
50: DISCOVER_STORAGE_TABLES
51: DISCOVER_STORAGE_TABLE_COLUMNS
52: DISCOVER_STORAGE_TABLE_COLUMN_SEGMENTS
53: DISCOVER_CALC_DEPENDENCY
54: DISCOVER_CSDL_METADATA
55: DISCOVER_RESOURCE_POOLS
56: TMSCHEMA_MODEL
57: TMSCHEMA_DATA_SOURCES
58: TMSCHEMA_TABLES
59: TMSCHEMA_COLUMNS
60: TMSCHEMA_ATTRIBUTE_HIERARCHIES
61: TMSCHEMA_PARTITIONS
62: TMSCHEMA_RELATIONSHIPS
63: TMSCHEMA_MEASURES
64: TMSCHEMA_HIERARCHIES
65: TMSCHEMA_LEVELS
67: TMSCHEMA_TABLE_STORAGES
68: TMSCHEMA_COLUMN_STORAGES
69: TMSCHEMA_PARTITION_STORAGES
70: TMSCHEMA_SEGMENT_MAP_STORAGES
71: TMSCHEMA_DICTIONARY_STORAGES
72: TMSCHEMA_COLUMN_PARTITION_STORAGES
73: TMSCHEMA_RELATIONSHIP_STORAGES
74: TMSCHEMA_RELATIONSHIP_INDEX_STORAGES
75: TMSCHEMA_ATTRIBUTE_HIERARCHY_STORAGES
76: TMSCHEMA_HIERARCHY_STORAGES
77: DISCOVER_RING_BUFFERS
78: TMSCHEMA_KPIS
79: TMSCHEMA_STORAGE_FOLDERS
80: TMSCHEMA_STORAGE_FILES
81: TMSCHEMA_SEGMENT_STORAGES
82: TMSCHEMA_CULTURES
83: TMSCHEMA_OBJECT_TRANSLATIONS
84: TMSCHEMA_LINGUISTIC_METADATA
85: TMSCHEMA_ANNOTATIONS
86: TMSCHEMA_PERSPECTIVES
87: TMSCHEMA_PERSPECTIVE_TABLES
88: TMSCHEMA_PERSPECTIVE_COLUMNS
89: TMSCHEMA_PERSPECTIVE_HIERARCHIES
90: TMSCHEMA_PERSPECTIVE_MEASURES
95: TMSCHEMA_SETS
96: TMSCHEMA_PERSPECTIVE_SETS
97: TMSCHEMA_EXTENDED_PROPERTIES
98: TMSCHEMA_EXPRESSIONS
99: TMSCHEMA_COLUMN_PERMISSIONS
100: TMSCHEMA_DETAIL_ROWS_DEFINITIONS
101: TMSCHEMA_RELATED_COLUMN_DETAILS
102: TMSCHEMA_GROUP_BY_COLUMNS
103: TMSCHEMA_CALCULATION_GROUPS
104: TMSCHEMA_CALCULATION_ITEMS
105: TMSCHEMA_ALTERNATE_OF_DEFINITIONS
106: TMSCHEMA_REFRESH_POLICIES
107: DISCOVER_POWERBI_DATASOURCES
108: TMSCHEMA_FORMAT_STRING_DEFINITIONS
109: DISCOVER_M_EXPRESSIONS
110: TMSCHEMA_POWERBI_ROLES
111: TMSCHEMA_QUERY_GROUPS
112: DISCOVER_DB_MEM_STATS
113: DISCOVER_MEM_STATS
114: TMSCHEMA_ANALYTICS_AIMETADATA
115: DISCOVER_OBJECT_COUNTERS
CurrentTime 2 5 Time at which the event started, when available. For filtering, expected formats are 'YYYY-MM-DD' and 'YYYY-MM-DD HH:MM:SS'.
StartTime 3 5 Time at which the event started, when available. For filtering, expected formats are 'YYYY-MM-DD' and 'YYYY-MM-DD HH:MM:SS'.
ConnectionID 25 1 Contains the unique connection ID associated with the discover event.
DatabaseName 28 8 Name of the database in which the statement of the user is running.
NTUserName 32 8 Contains the user name associated with the command event. Depending on the environment, the user name is in the following form:
- Windows user account (DOMAIN\UserName)
- User Principal Name (UPN) (username@domain.com)
- Service Principal Name (SPN) (appid@tenantid)
- Power BI Service Account (Power BI Service)
- Power BI Service on behalf of a UPN or SPN (Power BI Service (UPN/SPN))
NTDomainName 33 8 Contains the domain name associated with the user account that triggered the command event.
- Windows domain name for Windows user accounts
- AzureAD for Microsoft Entra accounts
- NT AUTHORITY accounts without a Windows domain name, such as the Power BI service
ClientProcessID 36 1 Contains the process ID of the client application.
ApplicationName 37 8 Name of the client application that created the connection to the server. This column is populated with the values passed by the application rather than the displayed name of the program.
SessionID 39 8 Contains the session ID associated with the discover event.
NTCanonicalUserName 40 8 Contains the user name associated with the command event. Depending on the environment, the user name is in the following form:
- Windows user account (DOMAIN\UserName)
- User Principal Name (UPN) (username@domain.com)
- Service Principal Name (SPN) (appid@tenantid)
- Power BI Service Account (Power BI Service)
SPID 41 1 Contains the server process ID (SPID) that uniquely identifies the user session associated with the discover event. The SPID directly corresponds to the session GUID used by XMLA.
TextData 42 9 Contains the text data associated with the event.
ServerName 43 8 Contains the name of the instance on which the discover event occurred.
RequestProperties 45 9 Contains the XML for Analysis (XMLA) request properties associated with the discover event.

Discover End Class—Data Columns

Column Name Column Id Column Type Column Description
EventClass 0 1 Contains the event class; this is used to categorize events.
EventSubclass 1 1 Event Subclass provides additional information about each event class. The following are valid Sub Class Id/Sub Class Name value pairs:
0: DBSCHEMA_CATALOGS
1: DBSCHEMA_TABLES
2: DBSCHEMA_COLUMNS
3: DBSCHEMA_PROVIDER_TYPES
4: MDSCHEMA_CUBES
5: MDSCHEMA_DIMENSIONS
6: MDSCHEMA_HIERARCHIES
7: MDSCHEMA_LEVELS
8: MDSCHEMA_MEASURES
9: MDSCHEMA_PROPERTIES
10: MDSCHEMA_MEMBERS
11: MDSCHEMA_FUNCTIONS
12: MDSCHEMA_ACTIONS
13: MDSCHEMA_SETS
14: DISCOVER_INSTANCES
15: MDSCHEMA_KPIS
16: MDSCHEMA_MEASUREGROUPS
17: MDSCHEMA_COMMANDS
18: DMSCHEMA_MINING_SERVICES
19: DMSCHEMA_MINING_SERVICE_PARAMETERS
20: DMSCHEMA_MINING_FUNCTIONS
21: DMSCHEMA_MINING_MODEL_CONTENT
22: DMSCHEMA_MINING_MODEL_XML
23: DMSCHEMA_MINING_MODELS
24: DMSCHEMA_MINING_COLUMNS
25: DISCOVER_DATASOURCES
26: DISCOVER_PROPERTIES
27: DISCOVER_SCHEMA_ROWSETS
28: DISCOVER_ENUMERATORS
29: DISCOVER_KEYWORDS
30: DISCOVER_LITERALS
31: DISCOVER_XML_METADATA
32: DISCOVER_TRACES
33: DISCOVER_TRACE_DEFINITION_PROVIDERINFO
34: DISCOVER_TRACE_COLUMNS
35: DISCOVER_TRACE_EVENT_CATEGORIES
36: DMSCHEMA_MINING_STRUCTURES
37: DMSCHEMA_MINING_STRUCTURE_COLUMNS
38: DISCOVER_MASTER_KEY
39: MDSCHEMA_INPUT_DATASOURCES
40: DISCOVER_LOCATIONS
41: DISCOVER_PARTITION_DIMENSION_STAT
42: DISCOVER_PARTITION_STAT
43: DISCOVER_DIMENSION_STAT
44: MDSCHEMA_MEASUREGROUP_DIMENSIONS
45: DISCOVER_XEVENT_PACKAGES
46: DISCOVER_XEVENT_OBJECTS
47: DISCOVER_XEVENT_OBJECT_COLUMNS
48: DISCOVER_XEVENT_SESSION_TARGETS
49: DISCOVER_XEVENT_SESSIONS
50: DISCOVER_STORAGE_TABLES
51: DISCOVER_STORAGE_TABLE_COLUMNS
52: DISCOVER_STORAGE_TABLE_COLUMN_SEGMENTS
53: DISCOVER_CALC_DEPENDENCY
54: DISCOVER_CSDL_METADATA
55: DISCOVER_RESOURCE_POOLS
56: TMSCHEMA_MODEL
57: TMSCHEMA_DATA_SOURCES
58: TMSCHEMA_TABLES
59: TMSCHEMA_COLUMNS
60: TMSCHEMA_ATTRIBUTE_HIERARCHIES
61: TMSCHEMA_PARTITIONS
62: TMSCHEMA_RELATIONSHIPS
63: TMSCHEMA_MEASURES
64: TMSCHEMA_HIERARCHIES
65: TMSCHEMA_LEVELS
67: TMSCHEMA_TABLE_STORAGES
68: TMSCHEMA_COLUMN_STORAGES
69: TMSCHEMA_PARTITION_STORAGES
70: TMSCHEMA_SEGMENT_MAP_STORAGES
71: TMSCHEMA_DICTIONARY_STORAGES
72: TMSCHEMA_COLUMN_PARTITION_STORAGES
73: TMSCHEMA_RELATIONSHIP_STORAGES
74: TMSCHEMA_RELATIONSHIP_INDEX_STORAGES
75: TMSCHEMA_ATTRIBUTE_HIERARCHY_STORAGES
76: TMSCHEMA_HIERARCHY_STORAGES
77: DISCOVER_RING_BUFFERS
78: TMSCHEMA_KPIS
79: TMSCHEMA_STORAGE_FOLDERS
80: TMSCHEMA_STORAGE_FILES
81: TMSCHEMA_SEGMENT_STORAGES
82: TMSCHEMA_CULTURES
83: TMSCHEMA_OBJECT_TRANSLATIONS
84: TMSCHEMA_LINGUISTIC_METADATA
85: TMSCHEMA_ANNOTATIONS
86: TMSCHEMA_PERSPECTIVES
87: TMSCHEMA_PERSPECTIVE_TABLES
88: TMSCHEMA_PERSPECTIVE_COLUMNS
89: TMSCHEMA_PERSPECTIVE_HIERARCHIES
90: TMSCHEMA_PERSPECTIVE_MEASURES
95: TMSCHEMA_SETS
96: TMSCHEMA_PERSPECTIVE_SETS
97: TMSCHEMA_EXTENDED_PROPERTIES
98: TMSCHEMA_EXPRESSIONS
99: TMSCHEMA_COLUMN_PERMISSIONS
100: TMSCHEMA_DETAIL_ROWS_DEFINITIONS
101: TMSCHEMA_RELATED_COLUMN_DETAILS
102: TMSCHEMA_GROUP_BY_COLUMNS
103: TMSCHEMA_CALCULATION_GROUPS
104: TMSCHEMA_CALCULATION_ITEMS
105: TMSCHEMA_ALTERNATE_OF_DEFINITIONS
106: TMSCHEMA_REFRESH_POLICIES
107: DISCOVER_POWERBI_DATASOURCES
108: TMSCHEMA_FORMAT_STRING_DEFINITIONS
109: DISCOVER_M_EXPRESSIONS
110: TMSCHEMA_POWERBI_ROLES
111: TMSCHEMA_QUERY_GROUPS
112: DISCOVER_DB_MEM_STATS
113: DISCOVER_MEM_STATS
114: TMSCHEMA_ANALYTICS_AIMETADATA
115: DISCOVER_OBJECT_COUNTERS
CurrentTime 2 5 Contains the current time of the discover event, when available. For filtering, expected formats are 'YYYY-MM-DD' and 'YYYY-MM-DD HH:MM:SS'.
StartTime 3 5 Contains the time (if available) at which the discover end event started.. For filtering, expected formats are 'YYYY-MM-DD' and 'YYYY-MM-DD HH:MM:SS'.
EndTime 4 5 Contains the time at which the event ended. This column is not populated for starting event classes, such as SQL:BatchStarting or SP:Starting. For filtering, expected formats are 'YYYY-MM-DD' and 'YYYY-MM-DD HH:MM:SS'.
Duration 5 2 Contains the approximate amount of time (milliseconds) taken by the discover event.
CPUTime 6 2 Contains the amount of CPU time (in milliseconds) used by the event.
Severity 22 1 Contains the severity level of an exception.
Success 23 1 Contains the success or failure of the discover event. Values are:

0 = Failure

1 = Success
Error 24 1 Contains the error number of any error associated the discover event.
ConnectionID 25 1 Contains the unique connection ID associated with the discover event.
DatabaseName 28 8 Contains the name of the database in which the discover event occurred.
NTUserName 32 8 Contains the Windows user name associated with the object permission event.
NTDomainName 33 8 Contains the domain name associated with the user account that triggered the command event.
- Windows domain name for Windows user accounts
- AzureAD for Microsoft Entra accounts
- NT AUTHORITY accounts without a Windows domain name, such as the Power BI service
ClientProcessID 36 1 Contains the client process ID of the application that initiated the event.
ApplicationName 37 8 Contains the name of the client application that created the connection to the server. This column is populated with the values passed by the application rather than the displayed name of the program.
SessionID 39 8 Contains the session ID associated with the discover event.
NTCanonicalUserName 40 8 Contains the user name associated with the command event. Depending on the environment, the user name is in the following form:
- Windows user account (DOMAIN\UserName)
- User Principal Name (UPN) (username@domain.com)
- Service Principal Name (SPN) (appid@tenantid)
- Power BI Service Account (Power BI Service)
SPID 41 1 Contains the server process ID (SPID) that uniquely identifies the user session associated with the discover end event. The SPID directly corresponds to the session GUID used by XMLA.
TextData 42 9 Contains the text data associated with the event.
ServerName 43 8 Contains the name of the instance on which the discover event occurred.
RequestProperties 45 9 Contains the properties in the XMLA request.