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 begin transaction
  update table1 set cola = 'str1'
  Waitfor time '10:12:00'
  update table2 set colb = 'str2'
 rollback transaction
 
transaction 2:
---- ......

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    set nocount on
    declare @sqlstr varchar(4000)
    declare @sqlstr1 varchar(4000)
    declare @sqlstr2 v ......

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