Dela via


SP:CacheHit Event Class

The SP:CacheHit event class indicates that a stored procedure is in the plan cache.

Note

Beginning in SQL Server 2005, SP:CacheHit replaces SP:ExecContextHit, which was used in SQL Server 2000 to indicate that a stored procedure was found in the cache. In later versions of SQL Server, users can expect to see SP:CacheHit in their traces instead of SP:ExecContextHit.

SP:CacheHit Event Class Data Columns

Data column name

Data type

Description

Column ID

Filterable

ApplicationName

nvarchar

Name 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.

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 in which the stored procedure is running. Determine the value for a database by using the DB_ID function.

3

Yes

DatabaseName

nvarchar

Name of the database in which the stored procedure is running.

35

Yes

EventClass

int

Type of event = 38.

27

No

EventSequence

int

The sequence of a given event within the request.

51

No

EventSubClass

int

Type of event subclass.

  • 1=Execution Context Hit

    A free execution plan was found in the plan cache.

  • 2=Compplan Hit

    A compiled plan was found in the plan cache.

21

Yes

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

IsSystem

int

Indicates whether the event occurred on a system process or a user process. 1 = system, 0 = user.

60

Yes

LoginName

nvarchar

Name of the login of the user (either SQL Server security login or the Microsoft Windows login credentials in the form of DOMAIN\username).

11

Yes

LoginSid

image

Security identification number (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

System-assigned ID of the stored procedure found in the cache.

22

Yes

ObjectName

nvarchar

Name of the object that was found in the cache. If ObjectName is populated, TextData will not be populated.

34

Yes

ObjectType

int

Value representing the type of the object involved in the event. This value corresponds to the type column in the sys.objects catalog view. For values, see ObjectType Trace Event Column.

28

Yes

RequestID

int

ID of the request containing the statement.

49

Yes

ServerName

nvarchar

Name of the instance of SQL Server being traced.

26

No

SessionLoginName

nvarchar

Login name of the user who 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.

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

TextData

ntext

Text of the SQL code that was found in the cache. If TextData is populated, ObjectName will not be populated.

1

Yes

TransactionID

bigint

System-assigned ID of the transaction.

4

Yes

XactSequence

bigint

Token that describes the current transaction.

50

Yes

See Also

Reference

Other Resources