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select right(str(10000+cast(rand()*10 as int)*1000+cast(rand()*10 as int)*100+cast(rand()*10 as int)*10+cast(rand()*10 as int),5),4),right(str(10000+cast(rand()*10 as int)*100+cast(rand()*10 as int)*1000+cast(rand()*10 as int)*10+cast(rand()*10 as int),5),4) 下面的方法简单些select right(str(10000+cast(rand()*10000 as int),5),4),ri... |
