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Server Memory Change Event Class

The Server Memory Change event class occurs when Microsoft SQL Server memory usage has increased or decreased by either 1 megabyte (MB) or 5 percent of the maximum server memory, whichever is greater.

Data column name Data type Description Column ID Yes

EventClass

int

Type of event = 81.

27

No

EventSequence

int

Sequence of a given event within the request.

51

No

EventSubClass

int

Type of event subclass.

1=Memory Increase

2=Memory Decrease

21

Yes

IntegerData

int

New memory size, in megabytes (MB).

25

Yes

IsSystem

int

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

60

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

The 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

TransactionID

bigint

System-assigned ID of the transaction.

4

Yes

XactSequence

bigint

Token that describes the current transaction.

50

Yes

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