审计对象,可以通过动态管理视图和函数来查看
一,查看服务器审计对象
查看审计服务器审计对象的信息,这是审计对象的元数据:
select a.audit_id ,a.audit_guid ,a.name ,a.create_date ,a.modify_date ,a.principal_id as owner_prinicpal_id ,a.type ,a.type_desc ,a.on_failure ,a.on_failure_desc ,a.is_state_enabled ,a.queue_delay ,a.predicate from sys.server_audits a
查看审计对象的当前状态,以及跟审计对象相关联的Extended Events session
select s.audit_id ,s.name ,s.status ,s.status_desc ,s.status_time ,s.audit_file_path ,s.audit_file_size ,s.event_session_address ,e.name as xe_session_name ,e.pending_buffers ,e.total_regular_buffers ,e.regular_buffer_size ,e.large_buffer_size ,e.total_buffer_size ,e.buffer_policy_flags ,e.buffer_policy_desc ,e.flags ,e.flag_desc ,e.dropped_event_count ,e.dropped_buffer_count ,e.blocked_event_fire_time ,e.create_time ,e.largest_event_dropped_size from sys.dm_server_audit_status s inner join sys.dm_xe_sessions as e on s.event_session_address=e.address
二,审计规范
审计规范分为服务器级别的审计规范和数据库级别的审计规范,以下脚本用于查看数据库级别的审计规范:
select s.audit_guid ,s.name as audit_specification ,s.create_date ,s.modify_date ,s.is_state_enabled ,d.audit_action_id ,d.audit_action_name ,d.class ,d.class_desc ,d.major_id ,d.minor_id ,d.audited_principal_id ,d.audited_result ,d.is_group from sys.database_audit_specifications s inner join sys.database_audit_specification_details as d on s.database_specification_id=d.database_specification_id
三,审计动作
审计动作实际上是可被审计的事件被触发,审计动作是创建审计需要监控的对象:
select a.action_id ,a.action_in_log ,a.name as action_name ,m.class_type ,a.class_desc ,m.securable_class_desc ,a.parent_class_desc ,a.covering_action_name ,a.configuration_level ,a.containing_group_name from sys.dm_audit_actions a inner join sys.dm_audit_class_type_map m on a.class_desc=m.class_type_desc
四,审计数据
审计数据是我们创建审计的目的,通过审计数据追踪系统发生的事件,并把跟事件相关的信息记录下来。
审计数据是通过函数 fn_get_audit_file()获得的,返回的字段主要有以下两类,第一类是跟数据库的环境相关:
- application_name:客户端应用程序的名称,该程序执行SQL语句触发了审计事件
- server_instance_name:审计发生的SQL Server实例名称
- database_name:审计动作发生的数据库
- database_principal_id 和 database_principal_name:执行审计动作的用户
- server_principal_id和server_principal_name:主席那个审计作用的Login
- server_principal_sid:login的sid
- session_id:审计动作发生的session
- session_server_principal_name:审计动作发生的session的login
第二类是事件和事件关联的数据:
- action_id:审计动作ID
- event_time:审计动作(Audit Action)触发的时间
- class_type:审计作用的对象的类型
- schema_name:审计作用的对象的schema名称
- object_id和object_name:审计作用的对象的ID和名称
- statement:执行的SQL 语句
- succeeded:指示审计动作是否执行成功
- sequence_group_id和sequence_number:如果单个审计记录(audit record)的size太大,那么会把该审计分为一组,通过sequence_number来标记顺序
可以通过以下脚本来查看审计追踪的数据:
select f.event_time ,f.sequence_group_id ,f.sequence_number ,f.action_id ,a.name as action_name ,f.succeeded ,f.server_principal_name ,f.database_principal_name ,f.database_name ,f.object_id ,f.schema_name ,f.object_name ,f.class_type ,m.class_type_desc ,f.statement ,f.session_id ,f.application_name from sys.fn_get_audit_file('G:\AuditFiles\MonitorQuery\*',default,default) f inner join sys.dm_audit_actions a on f.action_id=a.action_id inner join sys.dm_audit_class_type_map m on f.class_type=m.class_type order by f.event_time
参考文档:
SQL Server Audit (Database Engine)