SCOPE IDENTITY()

CREATE TABLE dbo.logging_table(log_id INT IDENTITY(1,1) PRIMARY KEY, 
                               log_message VARCHAR(255))

CREATE TABLE dbo.person(person_id INT IDENTITY(1,1) PRIMARY KEY, 
                        person_name VARCHAR(100) NOT NULL)
GO;

CREATE TRIGGER dbo.InsertToADifferentTable ON dbo.person  
AFTER INSERT  
AS
    INSERT INTO dbo.logging_table(log_message)
    VALUES('Someone added something to the person table')
GO;

INSERT INTO dbo.person(person_name)
VALUES('John Doe')  

SELECT SCOPE_IDENTITY();

这将返回当前范围内在同一连接上生成的最近添加的标识值。在这种情况下，1 表示 dbo.person 表中的第一行。