模擬DeadLock

begin tran

update workorder

set wonum='1048841'

where siteid='ASTROS'

and wonum='100062'

 

WAITFOR DELAY '00:00:05'

 

select * from workorder

where siteid='ASTROS'

and wonum='100061'

 

commit

 

 

begin tran

update workorder

set wonum='1048840'

where siteid='ASTROS'

and wonum='100061'

 

--WAITFOR DELAY '00:00:03'

 

commit

 

 

 

 

 

update workorder

set wonum='100062'

where siteid='ASTROS'

and wonum='1048841'

 

update workorder

set wonum='100061'

where siteid='ASTROS'

and wonum='1048840'