sql-server - 在触发器中使用插入和删除的表

Question

我想编写触发器来处理插入和删除的表。我已经编写了插入触发器:

CREATE TRIGGER FILL_TABLE
ON Person FOR INSERT
AS
DECLARE @ID int
SELECT @ID = p.ID
FROM Person AS p 
    INNER JOIN inserted AS i ON p.ID = i.ID 
DECLARE @uName char(30);
SELECT @uName = SYSTEM_USER
INSERT tblOperationLog 
 Values 
 ( @uName, 'user has inserted a row with ID = ' + CONVERT(nvarchar, @ID) + '', 
    'Insert', CURRENT_TIMESTAMP, GETDATE() )

我想编写触发器并像插入表一样使用删除的表。但我不知道怎么做。我想检索已删除行的 ID 以填充 tblOperationLog 的第二列，但我不能。我也应该使用内部连接吗？

Answer 1

仅当仅插入一行时，您的触发器才会起作用。由于 inserted 可用作表，因此您可以从该表插入并使用所有记录。我认为您正在寻找这样的东西:

CREATE TRIGGER FILL_TABLE 
ON Person FOR INSERT, DELETE
AS 

  INSERT tblOperationLog  
  SELECT  SYSTEM_USER,'user has inserted a row with ID = ' + ID, 'Insert', 
    CURRENT_TIMESTAMP, getdate()
  FROM inserted

  INSERT tblOperationLog  
  SELECT  SYSTEM_USER,'user has deleted a row with ID = ' + ID, 'Delete', 
    CURRENT_TIMESTAMP, getdate()
  FROM deleted