TechNet
Export (0) Print
Expand All

CursorImplicitConversion Event Class

 

Applies To: SQL Server 2016

The CursorImplicitConversion event class describes cursor-implicit conversion events that occur in application programming interfaces (APIs) or Transact-SQL cursors. Cursor implicit conversion events occur when the SQL Server Database Engine executes a Transact-SQL statement that is not supported by server cursors of the type requested. The Database Engine returns an error that indicates the cursor type has changed.

Include the CursorImplicitConversion event class in traces that are recording the performance of cursors.

When this event class is included in a trace, the amount of overhead incurred depends on how frequently cursors that require implicit conversion are used against the database during the trace. If cursors are used extensively, the trace may significantly impede performance.

Data column nameData typeDescriptionColumn IDFilterable
ApplicationNamenvarcharName of the client application that created the connection to an instance of SQL Server. This column is populated with the values passed by the application rather than the displayed name of the program.10Yes
BinaryDataimageResulting cursor type. Values are:

1 = Keyset

2 = Dynamic

4 = Forward only

8 = Static

16 = Fast forward
2Yes
ClientProcessIDintID 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.9Yes
DatabaseIDintID of the database specified by the USE database statement or the default database if no USE databasestatement has been issued for a given instance. SQL Server Profiler 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.3Yes
DatabaseNamenvarcharName of the database in which the user statement is running.35Yes
EventClassintType of event recorded = 76.27No
EventSequenceintSequence of the CursorClose event class in the batch.51No
GroupIDintID of the workload group where the SQL Trace event fires.66Yes
HandleintHandle of the object referenced in the event.33Yes
HostNamenvarcharName 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.8Yes
IntegerDataintRequested cursor type. Values are:

1 = Keyset

2 = Dynamic

4 = Forward only

8 = Static

16 = Fast forward
25No
IsSystemintIndicates whether the event occurred on a system process or a user process. 1 = system, 0 = user.60Yes
LoginNamenvarcharName of the login of the user (either SQL Server security login or the Microsoft Windows login credentials in the form of DOMAIN\username).11Yes
LoginSidimageSecurity 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.41Yes
NTDomainNamenvarcharWindows domain to which the user belongs.7Yes
NTUserNamenvarcharWindows user name.6Yes
RequestIDintRequest identifier of the implicit conversion.49Yes
ServerNamenvarcharName of the instance of SQL Server being traced.26No
SessionLoginNamenvarcharLogin name of the user that originated the session. For example, if you connect to SQL Server using Login1 and execute a statement as Login2, SessionLoginName shows Login1 and LoginName shows Login2. This column displays both SQL Server and Windows logins.64Yes
SPIDintID of the session on which the event occurred.12Yes
StartTimedatetimeTime at which the event started, if available.14Yes
TransactionIDbigintSystem-assigned ID of the transaction.4Yes
XactSequencebigintToken that describes the current transaction.50Yes

sp_trace_setevent (Transact-SQL)

Community Additions

ADD
Show:
© 2016 Microsoft