sql版本 select * from (select t.CloseDate,t.ExpiryDate,t.DataTypeLookupID,ROW_NUMBER() over(partition by CloseDate,ExpiryDate,DataTypeLookupID order by CloseDate,ExpiryDate,DataTypeLookupID) as new_index from dbo.IndexVolatilityMarketData t ) a where a
数据库表设计 邓老师(老邓教的) insert into TestOne ','Test011') select @@IDENTITY as '自动增长ID' 杨老师(老杨教的) insert into TestOne output inserted.ID as '自动增长ID' ','Test010') 最近偷的((*^__^*) 嘻嘻……) insert into TestOne ','Test013') ) as '自动增长ID'
方法一: 使用TOP SELECT TOP 1 * FROM user; SELECT TOP 1 * FROM user order by id desc; 方法二: 使用LIMIT SELECT * FROM user LIMIT 1; SELECT * FROM user ORDER BY id ASC LIMIT 1; SELECT * FROM user ORDER BY id DESC LIMIT 1; --------------------- 原文:https://blog.cs
方法一: 使用TOP SELECT TOP 1 * FROM user; SELECT TOP 1 * FROM user order by id desc; 方法二: 使用LIMIT SELECT * FROM user LIMIT 1; SELECT * FROM user ORDER BY id ASC LIMIT 1; SELECT * FROM user ORDER BY id DESC LIMIT 1; 转载至:https://www.cnblogs.com/weimingxin/p