如何在插入后创建更新表的触发器？ [英] How to create a trigger to update a table after an insert?

问题描述

大家好，假设我有一个名为 tabpeople 的表，它有以下字段： id （主键自动增量），数字（文本）和名称（文本）。如何创建始终在添加人员后的触发器，数字字段将更新为与 id 字段具有5个前导零的相同值？



谢谢大家。



我的尝试：



我试图调整一些我发现的例子，但我不能这样做。

Hello everyone, assuming I have a table called tabpeople and it has the fields: id (primary key auto increment), number (text) and name (text). How can I create a trigger that always after adding a person, the number field is updated to the same value as the id field with 5 leading zeros?

Thank you all.

What I have tried:

I tried to adapt some examples that I found but I could not do that.

推荐答案

请试试：

Pleas try:

CREATE TRIGGER tabpeople_i 
   ON  tabpeople
   FOR  INSERT
AS 
BEGIN
SET NOCOUNT ON;
UPDATE t
	SET name='00000'+LTRIM(rtrim(str(i.id)))
	FROM tabpeople t
	JOIN inserted I 
		ON i.id=t.id

END

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