After create event notification executes , the events that are covered by an event group are added to the Create event notification执行之后，事件组包含的事件将添加到
Figure 4 shows the classes and concepts of an event group profile list that contains a list of event group profiles 图4展示包含一系列事件组概要的事件组概要清单的类和概念。
An event group defines a logical collection of events by associating an event selector with a unique name 事件组通过将事件选择器与唯一的名称联系在一起来定义事件的逻辑集合。
An event group profile object defines a selector string which determines which events belong to this group 事件组概要对象定义了选择器（ selector ）字符串来决定哪些事件属于这个组。
If the event matches a group , it then publishes the cbe to the jms queue or topic configured for that event group 如果匹配成功，则将cbe发布到为这个事件组而配置的jms队列或主题中。
Retrieve events that belong to a specified event group and optionally meet a criterion that is specified using an event selector 获取属于指定事件组的事件并（可选的）达到由事件选择器指定的标准。
An event notification can occur after any transact - sql event that belongs to a predefined grouping of similar events is run 事件通知可以在任何属于预定义相似事件组的transact - sql事件运行之后执行。
An event notification can occur after any sql trace event that belongs to a predefined grouping of similar trace events is run 事件通知可以在任何属于预定义相似跟踪事件组的sql跟踪事件运行之后执行。
For a list of ddl event groups , the transact - sql events they cover , and the scope at which they can be defined , see 有关ddl事件组、事件组包含的transact - sql事件以及可定义事件组的作用域的列表，请参阅
When the cei server receives an event and provided that event distribution is enabled , it attempts to match the event to an event group 当cei服务器接收到事件（假设事件分布已启用）时，它将会试图将事件匹配到事件组。
