为多个操作创建一个触发器

Question

我的问题是，我可以在一个表上创建多个操作（插入/更新/删除）的一个触发器吗？事情是这样的：

Create trigger [dbo].[TR_AUDIT_TESTAUDIT] 
    ON [dbo].[testaudit] 
    AFTER UPDATE, INSERT, DELETE 
    AS BEGIN 

    -- prepare the audit data 

    case the operation is insert then 
    case the operation is delete then 
    case the operation is update then 

    -- process auditdata 

    END 

现在我要创建3个触发此任务的同时，我可以将它们合并成一个！

Answer 1

没关系，我懂了：

Create trigger [dbo].[TR_AUDIT_TESTAUDIT] 
    ON [dbo].[testaudit] 
    AFTER INSERT, UPDATE, DELETE 
    AS 
BEGIN 
    SET NOCOUNT ON; 
    declare @action nvarchar(1) 

    set @action = 'I' -- always I 

    if exists(select top 1 1 from deleted) and not exists(select top 1 1 from inserted)   
    set @action = 'D' 

    if exists(select top 1 1 from deleted) and exists(select top 1 1 from inserted)   
    set @action = 'U'   
END