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 SELE ...

方法一: 使用TOP SELECT TOP 1 * FROM user; SELECT TOP 1 * FROM user order by id desc; ...

mysql數據庫中，查詢一個表的下一條數據減上一條數據的值的寫法： ...

(1, '張三', 24) ...

SELECT * FROM ( SELECT ROW_NUMBER() OVER(PARTITION BY x ORDER BY y DESC) rn,t.* FROM test1 t ...

方案1：使用limit 1 select * from a where create_time<="2017-03-29 19:30:36" order by create_time desc limit 1; limit是先將表遍歷一遍，取出全部結果，然后再取第一條，在查詢 ...

原文： https://bbs.csdn.net/topics/392362315 https://bbs.csdn.net/topics/391863876 ...

select diqu,fuzeren,stuff((select ','+yugong from ls where diqu = a.diqu and fuzeren ...