统计SQL的完善问题

wing7742 2010-10-28 02:56:34



select c.[month],c.product_name,c.target_name,

c.product_item_name ZXNAME,c.zx ZXVALUE,

'' CJNAME,0 CJVALUE,

'' YJNAME,0 YJVALUE

from (

select [month],product_name,target_name,

	max(zx) zx,

	max(cj) cj,

	max(total) total

	from

		(select 

			datepart(mm,user_time) [month],product_name,target_name,product_item_name,

			count(*) zx,

			count(case when state='SUCCESS' then state end) cj,

			sum(sum_money) total

		from vi_sale_view

			where datepart(yyyy,user_time)=2010

			and project_pkid<>0

			group by datepart(mm,user_time),product_name,target_name,product_item_name

		) a

	group by [month],product_name,target_name

	) b



left join



(select 

	datepart(mm,user_time) [month],product_name,target_name,product_item_name,

	count(*) zx,

	count(case when state='SUCCESS' then state end) cj,

	sum(sum_money) total

from vi_sale_view

	where datepart(yyyy,user_time)=2010

	and project_pkid<>0

	group by datepart(mm,user_time),product_name,target_name,product_item_name

) c on b.[month]=c.[month] and b.product_name=c.product_name

and b.target_name=c.target_name and b.zx=c.zx



union all



select c.[month],c.product_name,c.target_name,

'' ZXNAME,0 ZXVALUE,

c.product_item_name CJNAME,c.cj CJVALUE,

'' YJNAME,0 YJVALUE

from (

select [month],product_name,target_name,

	max(zx) zx,

	max(cj) cj,

	max(total) total

	from

		(select 

			datepart(mm,user_time) [month],product_name,target_name,product_item_name,

			count(*) zx,

			count(case when state='SUCCESS' then state end) cj,

			sum(sum_money) total

		from vi_sale_view

			where datepart(yyyy,user_time)=2010

			and project_pkid<>0

			group by datepart(mm,user_time),product_name,target_name,product_item_name

		) a

	group by [month],product_name,target_name

	) b



left join



(select 

	datepart(mm,user_time) [month],product_name,target_name,product_item_name,

	count(*) zx,

	count(case when state='SUCCESS' then state end) cj,

	sum(sum_money) total

from vi_sale_view

	where datepart(yyyy,user_time)=2010

	and project_pkid<>0

	group by datepart(mm,user_time),product_name,target_name,product_item_name

) c on b.[month]=c.[month] and b.product_name=c.product_name

and b.target_name=c.target_name and b.cj=c.cj



union all



select c.[month],c.product_name,c.target_name,

'' ZXNAME,0 ZXVALUE,

'' CJNAME,0 CJVALUE,

c.product_item_name YJNAME,c.total YJVALUE

from (

select [month],product_name,target_name,

	max(zx) zx,

	max(cj) cj,

	max(total) total

	from

		(select 

			datepart(mm,user_time) [month],product_name,target_name,product_item_name,

			count(*) zx,

			count(case when state='SUCCESS' then state end) cj,

			sum(sum_money) total

		from vi_sale_view

			where datepart(yyyy,user_time)=2010

			and project_pkid<>0

			group by datepart(mm,user_time),product_name,target_name,product_item_name

		) a

	group by [month],product_name,target_name

	) b



left join



(select 

	datepart(mm,user_time) [month],product_name,target_name,product_item_name,

	count(*) zx,

	count(case when state='SUCCESS' then state end) cj,

	sum(sum_money) total

from vi_sale_view

	where datepart(yyyy,user_time)=2010

	and project_pkid<>0

	group by datepart(mm,user_time),product_name,target_name,product_item_name

) c on b.[month]=c.[month] and b.product_name=c.product_name

and b.target_name=c.target_name and b.total=c.total

order by [month],product_name,target_name

如上SQL得到结果
month product_name target_name ZXNAME ZXVALUE CJNAME CJVALUE YJNAME YJVALUE
----- ------------ ---------- --------- ---- ------ ------- ------ --------
1 AA a1 null 0 aa 2 null 0
1 AA a1 bb 3 null 0 null 0
1 AA a1 null 0 null 0 cc 44
1 BB b2 dd 3 null 0 null 0
1 BB b2 de 3 null 0 null 0
1 BB b2 null 0 null 0 ee 5
1 BB b2 null 0 ff 3 null 0
......
最终希望统计结果为
1 AA a1 bb 3 aa 2 cc 44
1 BB b2 dd,de 3 ff 3 ee 5

请问应该怎么对查询的数据统计

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wing7742 2010-10-29

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[Quote=引用 12 楼 sqlcenter 的回复:]
你用的SQL是什么版本
[/Quote]
2005

SQLCenter 2010-10-29

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你用的SQL是什么版本

wing7742 2010-10-29

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[Quote=引用 10 楼 sqlcenter 的回复:]
to #9楼

当然可以，有时间我看看，你自己也思考一下，不要听风听雨。
[/Quote]
嗯先谢了
对SQL不是很了解一边看帮助一边修改再尝试尝试吧

SQLCenter 2010-10-29

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to #9楼

当然可以，有时间我看看，你自己也思考一下，不要听风听雨。

wing7742 2010-10-29

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[Quote=引用 8 楼 dawugui 的回复:]
引用 7 楼 wing7742 的回复:
采用5楼方案后效率过低

继续求解

如果是合并字符串的数据，没有效率高的方法，需求如此，别无他法。
[/Quote]
嗯
那么能否在查询的时候进行处理呢？感觉SQL重复的很多？
这样想是不是很贪心了 - -#

dawugui 2010-10-29

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[Quote=引用 7 楼 wing7742 的回复:]
采用5楼方案后效率过低

继续求解
[/Quote]
如果是合并字符串的数据，没有效率高的方法，需求如此，别无他法。

wing7742 2010-10-29

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采用5楼方案后效率过低

继续求解

wing7742 2010-10-29

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TO：#19
嗯
根据你给的方法和思路得到了理想结果，查询速度从50m缩至25m
thx

wing7742 2010-10-29

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TO：#19
嗯
在合并时#14、#15、#16都是同样错误
我想了个解决方案是把SQL分开成为4个表，再一一对比生成新表

现在尝试#19

SQLCenter 2010-10-29

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#15也是错的，这里做了个例子，统计表/视图使用得最多和最少的数据类型，返回名称列表，测试通过，你照着改改#15的就可以了。

with base as

(

	select a.id, b.name, count(*)cn from syscolumns a, systypes b where a.xtype=b.xtype group by a.id, b.name

),

cte as

(

	select *, min(cn)over(partition by id)cnn, max(cn)over(partition by id)cnx from base

)

select object_name(id)object_name, id, 

	min_name = case min(cnn) when min(cn) then stuff((select ','+name from cte where id=t.id and cn=cnn for xml path('')),1,1,'') end,

	min_cn = min(cnn),

	max_name = case max(cnx) when max(cn) then stuff((select ','+name from cte where id=t.id and cn=cnx for xml path('')),1,1,'') end,

	max_cn = max(cnx)

from cte t group by id order by id

SQLCenter 2010-10-29

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那只能#15了

with cte as

(

	select id, xtype, count(*)cn from syscolumns group by id,xtype

),

abc as

(

	select *, max(cn)over(partition by id)cnx from cte

)

select top 3 id,

	typex = max(case cn when cnx then xtype else '' end),

	max(cn)

from abc group by id

/*

id          typex 

----------- ----- -----------

3           56    8

5           56    6

7           127   5

*/

wing7742 2010-10-29

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TO: #14
消息 130，级别 15，状态 1，第 1 行
不能对包含聚合或子查询的表达式执行聚合函数。
????

SQLCenter 2010-10-29

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这样合并不知道行不行，你测试一下

;with cte as

(

	select

		datepart(mm,user_time) [month],

		product_name,

		target_name,

		product_item_name,

		count(*) zx,

		count(case when state='SUCCESS' then state end) cj,

		sum(sum_money) total

	from vi_sale_view

	where datepart(yyyy,user_time)=2010 and project_pkid<>0

	group by datepart(mm,user_time),product_name,target_name,product_item_name

)

select [month],product_name,target_name,

	ZXNAME = max(case zx when max(t.zx) then stuff((select ','+product_item_name from cte where [month]=t.[month] and product_name=t.product_name and target_name=t.target_name and zx=max(t.zx) for xml path('')),1,1,'') else '' end),

	ZXVALUE = max(t.zx),

	CJNAME = max(case cj when max(t.cj) then stuff((select ','+product_item_name from cte where [month]=t.[month] and product_name=t.product_name and target_name=t.target_name and zx=max(t.cj) for xml path('')),1,1,'') else '' end),

	CJVALUE = max(t.cj),

	YJNAME = max(case total when max(t.total) then stuff((select ','+product_item_name from cte where [month]=t.[month] and product_name=t.product_name and target_name=t.target_name and zx=max(t.total) for xml path('')),1,1,'') else '' end),

	YJVALUE = max(t.total)

from cte t group by [month],product_name,target_name

SQLCenter 2010-10-29

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合并1

;with base as

(

	select

		datepart(mm,user_time) [month],

		product_name,

		target_name,

		product_item_name,

		count(*) zx,

		count(case when state='SUCCESS' then state end) cj,

		sum(sum_money) total

	from vi_sale_view

	where datepart(yyyy,user_time)=2010 and project_pkid<>0

	group by datepart(mm,user_time),product_name,target_name,product_item_name

),

cte as

(

	select *,

		max(zx)over(partition by [month],product_name,target_name)zxx,

		max(cj)over(partition by [month],product_name,target_name)cjx,

		max(total)over(partition by [month],product_name,target_name)totalx

	from base 

)

select [month],product_name,target_name,

	ZXNAME = max(case zx when zxx then stuff((select ','+product_item_name from cte where [month]=t.[month] and product_name=t.product_name and target_name=t.target_name and zx=zxx for xml path('')),1,1,'') else '' end),

	ZXVALUE = max(zx),

	CJNAME = max(case cj when cjx then stuff((select ','+product_item_name from cte where [month]=t.[month] and product_name=t.product_name and target_name=t.target_name and cj=cjx for xml path('')),1,1,'') else '' end),

	CJVALUE = max(cj),

	YJNAME = max(case total when totalx then stuff((select ','+product_item_name from cte where [month]=t.[month] and product_name=t.product_name and target_name=t.target_name and total=totalx for xml path('')),1,1,'') else '' end),

	YJVALUE = max(total)

from cte t group by [month],product_name,target_name

SQLCenter 2010-10-29

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这个是没有合并的，取最大的product_item_name

;with cte as

(

	select

		datepart(mm,user_time) [month],

		product_name,

		target_name,

		product_item_name,

		count(*) zx,

		count(case when state='SUCCESS' then state end) cj,

		sum(sum_money) total

	from vi_sale_view

	where datepart(yyyy,user_time)=2010 and project_pkid<>0

	group by datepart(mm,user_time),product_name,target_name,product_item_name

)

select [month],product_name,target_name,

	ZXNAME = max(case zx when max(zx) then product_item_name else '' end),

	ZXVALUE = max(zx),

	CJNAME = max(case cj when max(cj) then product_item_name else '' end),

	CJVALUE = max(cj),

	YJNAME = max(case total when max(total) then product_item_name else '' end),

	YJVALUE = max(total)

from cte group by [month],product_name,target_name

wing7742 2010-10-28

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TO: fredrickhu
已看过你提供的行合并解答
正在纠结中.........

--小F-- 2010-10-28

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可以先用一个CTE得出2楼的结果 然后再结合下面的方法



合并列值 

--*******************************************************************************************

表结构，数据如下： 

id    value 

----- ------ 

1    aa 

1    bb 

2    aaa 

2    bbb 

2    ccc 



需要得到结果： 

id    values 

------ ----------- 

1      aa,bb 

2      aaa,bbb,ccc 

即：group by id, 求 value 的和（字符串相加） 



1. 旧的解决方法(在sql server 2000中只能用函数解决。) 

--=============================================================================

create table tb(id int, value varchar(10)) 

insert into tb values(1, 'aa') 

insert into tb values(1, 'bb') 

insert into tb values(2, 'aaa') 

insert into tb values(2, 'bbb') 

insert into tb values(2, 'ccc') 

go 

--1. 创建处理函数 

CREATE FUNCTION dbo.f_strUnite(@id int) 

RETURNS varchar(8000) 

AS 

BEGIN 

    DECLARE @str varchar(8000) 

    SET @str = '' 

    SELECT @str = @str + ',' + value FROM tb WHERE id=@id 

    RETURN STUFF(@str, 1, 1, '') 

END 

GO 

-- 调用函数 

SELECt id, value = dbo.f_strUnite(id) FROM tb GROUP BY id 

drop table tb 

drop function dbo.f_strUnite 

go

/* 

id          value      

----------- ----------- 

1          aa,bb 

2          aaa,bbb,ccc 

（所影响的行数为 2 行） 

*/ 

--===================================================================================

2. 新的解决方法(在sql server 2005中用OUTER APPLY等解决。) 

create table tb(id int, value varchar(10)) 

insert into tb values(1, 'aa') 

insert into tb values(1, 'bb') 

insert into tb values(2, 'aaa') 

insert into tb values(2, 'bbb') 

insert into tb values(2, 'ccc') 

go 

-- 查询处理 

SELECT * FROM(SELECT DISTINCT id FROM tb)A OUTER APPLY( 

        SELECT [values]= STUFF(REPLACE(REPLACE( 

            ( 

                SELECT value FROM tb N 

                WHERE id = A.id 

                FOR XML AUTO 

            ), ' <N value="', ','), '"/>', ''), 1, 1, '') 

)N 

drop table tb 



/* 

id          values 

----------- ----------- 

1          aa,bb 

2          aaa,bbb,ccc 



(2 行受影响) 

*/ 



--SQL2005中的方法2 

create table tb(id int, value varchar(10)) 

insert into tb values(1, 'aa') 

insert into tb values(1, 'bb') 

insert into tb values(2, 'aaa') 

insert into tb values(2, 'bbb') 

insert into tb values(2, 'ccc') 

go 



select id, [values]=stuff((select ','+[value] from tb t where id=tb.id for xml path('')), 1, 1, '') 

from tb 

group by id 



/* 

id          values 

----------- -------------------- 

1          aa,bb 

2          aaa,bbb,ccc 



(2 row(s) affected) 



*/ 



drop table tb

wing7742 2010-10-28

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TO: maco_wang

感谢你的帮助给了我一定的提示，不过你可能疏忽了不论MAX() MIN() 都只能取一个值，还有合并的问题

SQLCenter 2010-10-28

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很长，慢慢看。

叶子 2010-10-28

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declare @table table

 (

month int,product_name varchar(2),

target_name varchar(2),ZXNAME varchar(2),ZXVALUE int,

CJNAME varchar(2),CJVALUE int,YJNAME varchar(2),YJVALUE int

)

insert into @table

select 1,'AA','a1',null,0,'aa',2,null,0 union all

select 1,'AA','a1','bb',3,null,0,null,0 union all

select 1,'AA','a1',null,0,null,0,'cc',44 union all

select 1,'BB','b2','dd',3,null,0,null,0 union all

select 1,'BB','b2','de',3,null,0,null,0 union all

select 1,'BB','b2',null,0,null,0,'ee',5 union all

select 1,'BB','b2',null,0,'ff',3,null,0



select

max(month) as [month],

product_name,

max(target_name) as target_name,

min(ZXNAME) as ZXNAME,max(ZXVALUE) as ZXVALUE,

max(CJNAME) as CJNAME,max(CJVALUE) as CJVALUE,

max(YJNAME) as YJNAME,max(YJVALUE) as YJVALUE

from @table group by product_name



/*

month       product_name target_name ZXNAME ZXVALUE     CJNAME CJVALUE     YJNAME YJVALUE

----------- ------------ ----------- ------ ----------- ------ ----------- ------ -----------

1           AA           a1          bb     3           aa     2           cc     44

1           BB           b2          dd     3           ff     3           ee     5

*/