IF EXISTS (SELECT * FROM sys.triggers WHERE parent_class = 0 AND name = 'tt')
DROP TRIGGER tt ON DATABASE;
GO
CREATE TRIGGER tt ON DATABASE
FOR CREATE_TABLE
AS
BEGIN 
    SET CONCAT_NULL_YIELDS_NULL ON
    DECLARE @AffectedTable nvarchar(255),@backUpTable nvarchar(255),@create_Script nvarchar(max)
    --获取建表的语句
    SELECT  @create_Script=EVENTDATA().value('(/EVENT_INSTANCE/TSQLCommand/CommandText)[1]','nvarchar(max)')
    --获取表的名称
    SELECT  @AffectedTable = EVENTDATA().value('(/EVENT_INSTANCE/ObjectName)[1]','nvarchar(255)')
    --定义一个备份的表名称
    SELECT  @backUpTable =@AffectedTable+'_bk'
    --替换表名
    SELECT  @create_Script=REPLACE(@create_Script,@AffectedTable,@backUpTable)
    --执行建表语句
    EXEC(@create_Script)
    --给创建的表加一个DML触发器
    EXEC('
        CREATE TRIGGER tt_'+@AffectedTable+' ON '+@AffectedTable+'
        FOR INSERT
        AS 
        BEGIN
            INSERT INTO '+@backUpTable+' SELECT * FROM INSERTED
        END'
    )
    SET CONCAT_NULL_YIELDS_NULL OFF
END 

--> 测试[tb]
IF OBJECT_ID('[tb]') IS NOT NULL DROP TABLE [tb]
GO 
CREATE TABLE [tb]([id] INT,[name] VARCHAR(4))
GO 

INSERT [tb]
SELECT 1,'土豆' UNION ALL 
SELECT 2,'水锅'

SELECT * FROM tb
/*
id    name
1    土豆
2    水锅
*/
SELECT * FROM tb_bk
/*
id    name
2    水锅
1    土豆
*/

DROP TABLE tb_bk