无法在 View SQL Server 2005 上执行删除

我无法对视图执行删除。各个桌子上的一切都运行良好。

EDIT1：添加触发器

CREATE TRIGGER myTrigger
ON [ViewName]
INSTEAD OF DELETE
AS
DELETE
FROM [ViewName]
WHERE [ColumnName] < DATEADD(Day, -90, GETDATE())

在添加触发器之前我收到以下错误

View or Function "blah" is not updateable because the modification affects multiple base tables>

好吧，让我们想象一下会发生此错误的一个实例（因为您没有显示视图定义）。

假设我们有一个视图：

CREATE VIEW dbo.V1
with schemabinding
as
    select 'T1' as TabName,T1ID as ID,ImportantDate from dbo.T1
    union all
    select 'T2',T2ID,ImportantDate from dbo.T2

我们现在尝试的是：

DELETE from dbo.V1 where ImportantDate < DATEADD(day,-90,CURRENT_TIMESTAMP)

我们会收到您所显示的错误（或类似错误）。所以我们需要一个触发器：

CREATE TRIGGER T_V1_D
on dbo.V1
instead of delete
as
    set nocount on
    delete from dbo.T1 where T1ID in (select ID from deleted where TabName = 'T1')
    delete from dbo.T2 where T2ID in (select ID from deleted where TabName = 'T2')

如果没有简单的方法来关联来自deleted需要从每个基表中删除行的伪表。