Audit Change Audit Event Class
Applies to: 
SQL Server
Azure SQL Database
Azure SQL Managed Instance
The Audit Change Audit event class occurs whenever an audit trace modification is made.
Audit Change Audit 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 Microsoft 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 |
| ColumnPermissions | int | Indicator of whether a column permission was set. Parse the statement text to determine which permissions were applied to which columns. | 44 | Yes |
| DatabaseID | int | 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. 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. | 3 | Yes |
| DatabaseName | nvarchar | Name of the database in which the user statement is running. | 35 | Yes |
| DBUserName | nvarchar | SQL Server user name of the client. | 40 | Yes |
| EventClass | int | Type of event = 117. | 27 | No |
| EventSequence | int | Sequence of a given event within the request. | 51 | No |
| EventSubClass | int | Type of event subclass. 1=Audit started 2=Audit stopped 3=C2 mode ON 4=C2 mode OFF |
21 | 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 the 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 |
| NestLevel | int | Integer representing the data returned by @@NESTLEVEL. | 29 | Yes |
| NTDomainName | nvarchar | Windows domain to which the user belongs. | 7 | Yes |
| NTUserName | nvarchar | Windows user name. | 6 | Yes |
| OwnerName | nvarchar | Database user name of the object owner. | 37 | Yes |
| RequestID | int | ID of the request containing the statement. | 49 | Yes |
| ServerName | nvarchar | Name of the instance of Microsoft SQL Server being traced. | 26 | No |
| SessionLoginName | nvarchar | Login name of the user who originated the session. For example, if you connect to Microsoft 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 |
| Success | int | 1 = success. 0 = failure. For example, a value of 1 indicates success of a permissions check and a value of 0 indicates failure of that check. | 23 | Yes |
| TextData | ntext | Text value dependent on the event class captured in the trace. | 1 | Yes |
| XactSequence | bigint | Token used to describe the current transaction. | 50 | Yes |