order by newid() 随机查询_MySQL

bitsCN.com

sql server：

Select TOP N * From TABLE Order By NewID()   
view plaincopy to clipboardprint?
Select TOP N * From TABLE Order By NewID()

Select TOP N * From TABLE Order By NewID()
NewID()函数将创建一个 uniqueidentifier 类型的唯一值。上面的语句实现效果是从Table中随机读取N条记录。

Access：

Select TOP N * From TABLE Order By Rnd(ID)    
view plaincopy to clipboardprint?
Select TOP N * From TABLE Order By Rnd(ID)  

Select TOP N * From TABLE Order By Rnd(ID) 
Rnd(ID) 其中的ID是自动编号字段，可以利用其他任何数值来完成，比如用姓名字段(UserName)

Select TOP N * From TABLE Order BY Rnd(Len(UserName))   
view plaincopy to clipboardprint?
Select TOP N * From TABLE Order BY Rnd(Len(UserName))

Select TOP N * From TABLE Order BY Rnd(Len(UserName))

小艺

华为公司推出的AI智能助手

549

查看详情

MySql：

Select * From TABLE Order By Rand() Limit 10   
view plaincopy to clipboardprint?
Select * From TABLE Order By Rand() Limit 10

Select * From TABLE Order By Rand() Limit 10

postgreSQL：

select * from glxt022 order by random() limit 5   
view plaincopy to clipboardprint?
select * from glxt022 order by random() limit 5