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sql根据条件增加序号

现有两种方法解决,供参考:1、SELECT IDENTITY(INT,1,1) AS 序号, avge FROM Table12、SELECT IDENTITY(INT,1,1) AS 序号, avge INTO #temp1 FROM Table1SELECT * FROM #temp1DROP TABLE #temp1 给查询出的SQL记录添加序号列,解决方法有以下两...

row_number() over(partition by cus_no,style order by vou_no)

SELECT @rownum:=@rownum+1 AS rownum, a.* FROM (SELECT @rownum:=0) r, a;

select * from 表 where 编号 in (1,2,3,4) 或者 select * from 表 where 编号=1 or 编号=2 or 编号=3 or 编号=4 这两个是同样的道理

有五种方法: 一、需要用临时表来实现 select IDENTITY(int, 1,1) AS ID_Num,* into #temp from 表 select * from #temp Drop Table #temp 二、不用临时表,就必须有排序列,值唯一,做参考: select (select count(*) from yourtable where col = b...

sqlserver2005及以上版本 SELECT ROW_NUMBER() OVER(PARTITION BY 种类 ORDER BY 种类) AS 序号,* FROM 表

需要用row_number来给分组添加序号。 1、创建测试表,插入数据: create table test(sid int,sname varchar(20),sclass varchar(20),score int);insert into test values (1,'张三','一年一班',100)insert into test values (2,'李四','一年一班...

比如:select 学号,日期row_number() over(partition by 学号 order by 学号) from A表.

update a set 序号= (select top 1 排名 from (select rank() over(order by 数量 asc) 排名,* from a ) zz where a.数量=zz.数量)

DB2/ Oracle /SQL server 2005以上可以用这个 select row_number() over(order by name), name, age from student 其他数据库很难实现

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