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insert into 表1 select * from 表2

利用游标

delete saler
DECLARE @SalerID int
DECLARE @SalerName nvarchar(200)

DECLARE cursor1 cursor for
select
 [SalerID],
 [SalerName]
from [zmr817].[dbo].[Saler]

open cursor1
fetch next from cursor1 into
@SalerID,
@SalerName

while @@fetch_status=0
begin
insert into [newjcjq].[dbo].[Saler](
[SalerID],
[SalerName]
)
values(
@SalerID,
@SalerName)

fetch next from cursor1 into
@SalerID,
@SalerName

end

close cursor1                  
deallocate cursor1