SQL 触发器在插入时将新记录添加到具有相同结构的 table

Question

我正在尝试创建 SQL 触发器，它将新记录添加到通过网页进行插入的同一 table。我不确定如何实现它，但我尝试了以下查询

CREATE trigger [dbo].[trgI_DealsDoneInserRecord]
on [dbo].[Terms]
after insert 
As    
  Insert into DealsDone                
        (Company,Grade,Term,Pipeline,[Index],Volume,Price,[Type],CounterParty,
               TermID,GradeID,CPID,Locked,Product)
  VALUES 
        (SELECT Company,Grade,Term,Pipeline,[Index],Volume,Price,[Type],CounterParty,
           TermID,GradeID,CPID,Locked,Product FROM inserted)

END

上述查询在 VALUES 中的 SELECT 语句中抛出错误。

我可以知道实现这个的方法吗？

Answer 1

存在语法问题，而且您还缺少 BEGIN

基本语法是

INSERT INTO table2  (column_name(s))
SELECT column_name(s)
FROM table1;

所以试试这个

    CREATE trigger [dbo].[trgI_DealsDoneInserRecord]
    on [dbo].[Terms]
    after insert 
    As
   BEGIN
       Insert into DealsDone                
          (Company,Grade,Term,Pipeline,[Index],Volume,Price,[Type],CounterParty,
                  TermID,GradeID,CPID,Locked,Product)
       SELECT Company,Grade,Term,Pipeline,[Index],Volume,Price,[Type],CounterParty,
                  TermID,GradeID,CPID,Locked,Product 
        FROM inserted
    END

参考：- http://technet.microsoft.com/en-us/library/ms188263(v=sql.105).aspx

Answer 2

试试这个：

CREATE trigger [dbo].[trgI_DealsDoneInserRecord]
ON [dbo].[Terms]
AFTER INSERT 
As    
BEGIN
  INSERT INTO DealsDone                
        (Company,Grade,Term,Pipeline,[Index],Volume,Price,[Type],CounterParty,
               TermID,GradeID,CPID,Locked,Product)
  SELECT Company,Grade,Term,Pipeline,[Index],Volume,Price,[Type],CounterParty,
           TermID,GradeID,CPID,Locked,Product FROM inserted
END

Answer 3

虽然我通常提倡反对使用SELECT *，但在这种情况下似乎有好处：

通过不指定字段，您可以自动考虑表中的更改，而无需在添加或删除甚至重命名字段时更新此触发器。
如果其中一个表已更新但另一个表未更新且结构不同，这将帮助您捕获架构更新中的错误。如果发生这种情况，INSERT 操作将失败，您不必担心清理坏数据。

所以使用这个：

CREATE TRIGGER [dbo].[trgI_DealsDoneInserRecord]
ON [dbo].[Terms]
AFTER INSERT
AS
  SET NOCOUNT ON;

  INSERT INTO [DealsDone]
      SELECT *
      FROM inserted;

SQL 触发器在插入时将新记录添加到具有相同结构的 table

SQL trigger to add new records to a table with the same structure when an insertion is made

sql

sql-server

tsql

triggers

sql-server-2012