SQL-Update引起的死锁_sql server update 出现死锁

死锁的形成与避免很早就知道了，但是一直知其然不知其依然，这两天使用语句自己制造死锁与分析，更加深刻的理解死锁的形成。PS：可能有理解有误的地方，希望指出

前期

• SQL语句准备

CREATE TABLE [dbo].[Table_A](
	[ID] [int] IDENTITY(1,1) NOT NULL,
	[Name] [nvarchar](8) NULL,
 CONSTRAINT [PK_Table_A] PRIMARY KEY CLUSTERED 
(
	[ID] ASC
)WITH (PAD_INDEX = OFF, STATISTICS_NORECOMPUTE = OFF, IGNORE_DUP_KEY = OFF, ALLOW_ROW_LOCKS = ON, ALLOW_PAGE_LOCKS = ON) ON [PRIMARY]
) ON [PRIMARY]
 
GO
CREATE TABLE [dbo].[Table_B](
	[ID] [int] IDENTITY(1,1) NOT NULL,
	[Name] [nvarchar](8) NULL,
 CONSTRAINT [PK_Table_B] PRIMARY KEY CLUSTERED 
(
	[ID] ASC
)WITH (PAD_INDEX = OFF, STATISTICS_NORECOMPUTE = OFF, IGNORE_DUP_KEY = OFF, ALLOW_ROW_LOCKS = ON, ALLOW_PAGE_LOCKS = ON) ON [PRIMARY]
) ON [PRIMARY]
 
GO
insert into [dbo].[Table_A](Name) values('测试数据A');
insert into [dbo].[Table_A](Name) values('测试数据A');
insert into [dbo].[Table_A](