日期:2014-05-16 浏览次数:20587 次
----------------------------------------------------------------
-- Author :DBA_HuangZJ(发粪涂墙)
-- Date :2014-05-07 14:58:22
-- Version:
-- Microsoft SQL Server 2008 R2 (RTM) - 10.50.1600.1 (X64)
-- Apr 2 2010 15:48:46
-- Copyright (c) Microsoft Corporation
-- Enterprise Edition (64-bit) on Windows NT 6.2 <X64> (Build 9200: ) (Hypervisor)
--
----------------------------------------------------------------
--> 测试数据[huang]
if object_id('[huang]') is not null drop table [huang]
go
create table [huang]([id] nvarchar(4),[weight] int,[count] int,[v1] nvarchar(8),[v2] nvarchar(8))
insert [huang]
select 'a',500,10,'a500','a500' union all
select 'a',200,20,'a','a' union all
select 'b',500,10,'b500','b500' union all
select 'b',100,10,'b5','b5' union all
select NULL,20,20,'20','20' union all
select NULL,20,20,'20','20'
--------------生成数据--------------------------
select id,MAX([weight])[weight],SUM([count])[count],MAX([v1])[v1],MAX([v2])[v2]
from [huang]
WHERE id IS NOT NULL
GROUP BY id
UNION ALL
SELECT *
FROM dbo.huang
WHERE id IS NULL
----------------结果----------------------------
/*
id&nbs