--select next_identity
select next_identity('dbo.TblHNWSwapSuitability')
--fixing identity gap and reset "next_identity" to 1
exec sp_chgattribute 'TblHNWSwapSuitability', 'identity_burn_max', 0,'0'
--create new backup table and dump data to it from original table dynamically
drop table tb_bak
declare @desTb varchar(50)
declare @oTb varchar(50)
set @desTb = 'tb_bak'
set @oTb = 'tb'
execute('insert into '+@a+' select * from '+@b+' where key_date = 200609')
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转载自no-123.iteye.com/blog/1947032
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