Trace File Close Event Class
Applies to: 
SQL Server
Azure SQL Database
Azure SQL Managed Instance
The Trace File Close event class indicates that a trace file has been closed during a trace file rollover.
Trace File Close Event Class Data Columns
| Data column name | Data type | Description | Column ID | Filterable |
|---|---|---|---|---|
| EventClass | int | Type of event = 150. | 27 | No |
| EventSequence | int | The unique timestamp of this event fired in this trace. This number increases monotonically for each event fired. | 51 | No |
| FileName | nvarchar | The logical name of the trace file being closed. | 36 | Yes |
| IsSystem | int | Indicates whether the event occurred on a system process or a user process. 1 = system, NULL = user. The value is always 1 for this event class. | 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). The value is always "sa" for this event class. | 11 | Yes |
| ObjectID | int | System-assigned ID of the trace. | 22 | 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 |