SQL While

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declare @i int
set @i=0
while @i<100
begin
print '123'
set @i=@i+1

end 


行数查询

select Guid,MaterialGuid,StockGuid,Amount,0 from (select row_number() over(partition by MaterialGuid,StockGuid order by MakeDate,SignDate,Guid) as rownum,Guid,MaterialGuid,StockGuid,Amount from #T where FStatus=0 )T  where rownum=1 

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