while exists (select count(*) from tablea group by col1 having count(*)>1 )begindelete top (1) from tablea where col1 in(select col1 from tableagroup by col1 having count(*)>1)end 相关文章: 2021-11-23 2021-12-27 2021-06-09 2022-12-23 2021-11-09 2022-01-26