日期:2014-05-17 浏览次数:20485 次
----------------------------------------------------------------
-- Author :DBA_Huangzj(發糞塗牆)
-- Date :2014-02-19 17:03:52
-- Version:
-- Microsoft SQL Server 2012 (SP1) - 11.0.3128.0 (X64)
-- Dec 28 2012 20:23:12
-- Copyright (c) Microsoft Corporation
-- Enterprise Edition (64-bit) on Windows NT 6.2 <X64> (Build 9200: )
--
----------------------------------------------------------------
--> 测试数据:[a]
if object_id('[a]') is not null drop table [a]
go
create table [a]([A01] varchar(5),[A02] varchar(3),[A03] int)
insert [a]
select 'M0001','n01',10 union all
select 'M0002','n01',5 union all
select 'M0003','n02',2 union all
select 'M0004','n02',4
--------------开始查询--------------------------
select MIN([A01])[a01],[A02],SUM([A03])[A03]
from [a]
GROUP BY [A02]
----------------结果----------------------------
/*
a01 A02 A03
----- ---- -----------
M0001 n01 15
M0003 n02 6
*/
--drop table A
create table A(A01 varchar(10), A02 varchar(10), A03 int)
insert into A
select 'M0001', 'n01', 10 union all
select 'M0002', 'n01', 5 union all
select 'M0003', 'n02', 2 union all
select 'M0004', 'n02', 4
go
select min(A01) a01, A02,SUM(A03) a03
from A
group by A02
/*
a01 A02 a03
M0001 n01 15
M0003 n02 6
*/
if object_id('t100') is not null drop table t100
create table t100(a01 varchar(30),a02 varchar(20),a03 int)
insert t100 values('M0001','n01',10)
insert t100 values('M0002','n01',5)
insert t100 values('M0003','n02',2)
insert t100 values('M0004','n02',4)
select [a01]=min(a01),a02,[a03]=sum(a03) from t100 group by a02