sql="select top 1 * from news order by tim desc" 中的top 1是什么作

sql="select top 1 * from news order by tim desc" 中的top 1是什么作 sqltext4="select top 2 * from stock order by Look_Count desc sql = "Select * from product_series order by index desc,id a select top 10 * from (select top 40 * from a order by id asc 在写SQL-SELECT命令,排序时常会有OEDER BY 1 DESC,ORDER BY 2 DESC,其中的数字1, 英语翻译select * from a order by decode(a.xx,50,1,-1)desc 请问sql="select * from 招聘信息 order by id select count(*) as total from 'test' order by id desc select top 1 select * top 99 percent from 职工 order by case when 工资 is nul sql语句中参数乘法select top 4 *from UserInfowhere ID not in(select select top 1 ID from Net_dictionary,其中top1 ID指的是什么?