declare @a int = 0,@b varchar(10) = '' CREATE TABLE #temp2 ( vcCode varchar(10), nStatus int ) while(@a < 10000) begin --随机数生成(不推荐) --set @b = right('000'+cast(ceiling(rand() * 10000) as varchar),4) set @b = right('000'+cast(@a as varchar),4) if not exists(select null from #temp2 where vcCode = @b) begin insert into #temp2 values(@b,11) set @a = @a +1 end end insert into Table_a select * from #temp2 order by newid()
sql 验证码生成和补位
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转载自www.cnblogs.com/ghelement/p/11423171.html
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