快速问题,我正在构建一个简单的触发器,目的是减少一个名为openSeats的表字段的值,触发器在插入时执行,但我不知道用什么命令说: 减少值openSeats,其中ID是等于插入标识插入sql触发器
USE [Training]
GO
/****** Object: Trigger [dbo].[DecrementSeat] Script Date: 11/04/2011 14:55:17 ******/
SET ANSI_NULLS ON
GO
SET QUOTED_IDENTIFIER ON
GO
-- =============================================
-- Author: <Author,,Name>
-- Create date: <Create Date,,>
-- Description: <Description,,>
-- =============================================
ALTER TRIGGER [dbo].[DecrementSeat]
ON [dbo].[personTraining]
AFTER INSERT
AS
BEGIN
-- SET NOCOUNT ON added to prevent extra result sets from
-- interfering with SELECT statements.
SET NOCOUNT ON;
UPDATE [dbo].[tbl_training]
SET openSeats = openSeats - 1
WHERE training_id =
END
“插入”列前缀不匹配查询中使用 – user959443
由于表名或别名,得到它的工作,你可以给我推荐一个很好的教程或书触发器? – user959443
这里有一篇很好的关于触发器的文章让你入门(http://msdn.microsoft.com/en-us/magazine/cc164047.aspx)。任何有关SQL Server的书籍都会有很好的信息。如果这解决了你的答案,请标记为答案。乐意效劳! – 2011-11-04 20:43:42