SQL Server：
复制代码 代码如下:
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：
复制代码 代码如下:
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)
复制代码 代码如下:
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))
MySql：
复制代码 代码如下:
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：
复制代码 代码如下:
select * from glxt022 order by random() limit 5
view plaincopy to clipboardprint?
select * from glxt022 order by random() limit 5
数据库,随机查询
免责声明：本站文章均来自网站采集或用户投稿，网站不提供任何软件下载或自行开发的软件！ 如有用户或公司发现本站内容信息存在侵权行为，请邮件告知！ 858582#qq.com