求SQL语句：当表的数据大于100条时，删除前10条（根据时间排序）
本帖最后由 u011081622 于 2013-06-19 17:23:19 编辑 注意是SQL语句，不是存储过程。

if (select count(*) from my_table) > 100) --这里什么写？
with t as (select top 10 * from my_table order by in_time desc) delete from t --这里是删除前10条记录
[解决办法]

if (select count(*) from my_table) > 100)

delete 
from my_table
where id in
(select top 10 id from my_table order by in_time desc) 

[解决办法]

if ((select count(*) from my_table)>100)
;with t as 
(select top 10 * 
 from my_table 
 order by in_time desc) 
delete from t;

[解决办法]
这样必须要有主键才好实现,有自增ID也可以 delete from table where 主键 not in (select top 100 主键 from table order by 日期列 desc )