sql 常用手冊

根據code 分組然後取出每組中的任意一行

SELECT *from(

SELECT
*, row_number () OVER (
partition BY code
ORDER BY
code DESC
) rowid
FROM
dept

) t

WHERE
rowid = 1;

 

SQL中相關子查詢

https://www.cnblogs.com/xcyjblog/p/14841168.html

 

SQL Server 事務隔離級別

https://www.cnblogs.com/chenmh/p/3998614.html

 

 

SQLServer提取日期

https://www.cnblogs.com/mazey/p/6517744.html