日期:2014-05-18 浏览次数:20818 次
1,if(select max(no)-min(no)+1 from tb)=(select count(*) from tb) print '连续' 2,if(select max(no)-min(no)+1 from tb)=(select count(*) from tb) and select min(no) from tb)=1 print '从1开始连续' 3,select number from master..spt_values where type='p' and not exists(select 1 from tb where no=number) and number<(select MAX(no) from tb)