Question

我有一个表“Alert_List”，上面正在运行两个会话。

第1节：

insert into Alert_List values ( "required values")

第2节：

Update A
set Active = 0
from Alert_List A
left join STG_Alert B on A.Alert_List_Id = B.Alert_List_Id
left join STG_UserID C on A.UserID = C.UserID
where B.Alert_List_Id is null and C.UserID is null

此处STG_Alert,STG_UserID是临时表，其中包含一些不需要停用的Alert_List_Id和UserID。

Alert_List上的索引如下。

ALTER TABLE [dbo].[Alert_List] ADD  CONSTRAINT [PK_EA_List] PRIMARY KEY CLUSTERED 
(
[Alert_List_Id] ASC
)WITH (PAD_INDEX = OFF, STATISTICS_NORECOMPUTE = OFF, SORT_IN_TEMPDB = OFF, IGNORE_DUP_KEY = OFF, ONLINE = OFF, ALLOW_ROW_LOCKS = ON, ALLOW_PAGE_LOCKS = ON)
GO


CREATE NONCLUSTERED INDEX [Alert_List_INDEX] ON [dbo].[Alert_List]
(
    [AVE_Id] ASC,
    [Request_Id] ASC,
    [User_Id] ASC,
    Active ASC,
    [Process_Id] ASC,
    [Status_Id] ASC
)
INCLUDE (   [Alert_List_Id]) WITH (PAD_INDEX = OFF, STATISTICS_NORECOMPUTE = OFF, SORT_IN_TEMPDB = OFF, DROP_EXISTING = OFF, ONLINE = OFF, ALLOW_ROW_LOCKS = ON, ALLOW_PAGE_LOCKS = ON)
GO

CREATE NONCLUSTERED INDEX [indexeaml] ON [dbo].[Alert_List]
(
    [User_Id] ASC,
    [Process_Id] ASC
)WITH (PAD_INDEX = OFF, STATISTICS_NORECOMPUTE = OFF, SORT_IN_TEMPDB = OFF, DROP_EXISTING = OFF, ONLINE = OFF, ALLOW_ROW_LOCKS = ON, ALLOW_PAGE_LOCKS = ON)
GO

上述两个查询失败，但发生以下错误。

事务（进程ID 85）在锁资源上与另一个进程发生死锁，并被选为死锁牺牲品。重新运行该交易。

在这种情况下，我不想使用WITH(NOLOCK)或ALLOW_SNAPSHOT_ISOLATION。

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在SQL Server中的表上插入阻止更新查询

0 个答案: