assembly-load-event-class.md

title	Assembly Load Event Class | Microsoft Docs
ms.custom
ms.date	06/13/2017
ms.prod	sql-server-2014
ms.reviewer
ms.technology	database-engine
ms.topic	conceptual
topic_type	apiref
helpviewer_keywords	Assembly Load event class
ms.assetid	cfb0b69d-4ce0-4067-a3df-d82775e57886
author	mashamsft
ms.author	mathoma
manager	craigg

Assembly Load Event Class

The Assembly Load event class occurs when a request to load an assembly is executed.

Include the Assembly Load event class in traces where you want to monitor assembly loads. This can be useful when troubleshooting a query that uses common language runtime (CLR), when troubleshooting a slow running server that is running CLR queries, or when monitoring a server to gather user, database, success, or other information about assembly loads.

Assembly Load Event Class Data Columns

Data column name	Data type	Description	Column ID	Filterable
ApplicationName	nvarchar	The name of the application that requested the load.	10	Yes
ClientProcessID	int	ID assigned by the host computer to the process where the client application is running. This data column is populated if the client provides the client process ID.	9	Yes
DatabaseID	int	ID of the database specified by the USE database statement or the default database if no USE database statement has been issued for a given instance. [!INCLUDEssSqlProfiler] displays the name of the database if the ServerName data column is captured in the trace and the server is available. Determine the value for a database by using the DB_ID function.	3	Yes
DatabaseName	nvarchar	Name of the database in which the user statement is running.	35	Yes
EventSequence	int	Sequence of a given event within the request.	51	No
GroupID	int	ID of the workload group where the SQL Trace event fires.	66	Yes
HostName	nvarchar	Name of the computer on which the client is running. This data column is populated if the client provides the host name. To determine the host name, use the HOST_NAME function.	8	Yes
LoginName	nvarchar	Name of the login of the user (either [!INCLUDEssNoVersion] security login or the [!INCLUDEmsCoName] Windows login credentials in the form of DOMAIN\username).	11	Yes
LoginSID	image	Security identifier (SID) of the logged-in user. You can find this information in the sys.server_principals catalog view. Each SID is unique for each login in the server.	41	Yes
NTDomainName	nvarchar	Windows domain to which the user belongs.	7	Yes
NTUserName	nvarchar	Windows user name.	6	Yes
ObjectID	int	Assembly ID.	22	Yes
ObjectName	nvarchar	Fully qualified name of the assembly.	34	Yes
RequestID	int	ID of the request containing the statement.	49	Yes
ServerName	nvarchar	Name of the instance of [!INCLUDEssNoVersion] being traced.	26	No
SessionLoginName	nvarchar	Login name of the user that originated the session. For example, if you connect to [!INCLUDEssNoVersion] using Login1 and execute a statement as Login2, SessionLoginName shows Login1 and LoginName shows Login2. This column displays both [!INCLUDEssNoVersion] and Windows logins.	64	Yes
SPID	int	ID of the session on which the event occurred.	12	Yes
StartTime	datetime	Time at which the event started, if available.	14	Yes
Success	int	Indicates whether the assembly load succeeded (1) or failed (0).	23	Yes
TextData	ntext	"Assembly Load Succeeded" if the load succeeds; otherwise, "Assembly Load Failed".	1	Yes

See Also

Extended Events
Assemblies (Database Engine)