ExistingConnection Event Class

The ExistingConnection event class indicates the properties of existing user connections when the trace was started. The server raises one ExistingConnection event per existing user connection.

Existing Connection 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

BinaryData

image

Binary dump of option flags such as session level settings, including ANSI nulls, ANSI padding, cursor close on commit, null concatenation, and quoted identifiers.

2

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

The current database ID of the user connection. 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. 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

EventClass

int

Type of event = 17.

27

No

EventSequence

int

The sequence of this event within this trace.

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

IntegerData

int

The network packet size in use for the connection.

25

Yes

IsSystem

int

Indicates whether the event occurred on a system process or a user process. 1 = system, NULL = user. Always NULL for this event.

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 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

RequestID

int

The 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 user opened this connection (login time).

14

Yes

TextData

ntext

Set options specific to the connection.

1

Yes