select count(a.xsid),b.ygxm as c,b.zb, other=case when sum(case when a.other='' then 0 else cast(a.other as int) end)=0 then '' else ltrim(sum(case when a.other='' then 0 else cast(a.other as int) end)) end from cjdb as a inner join employment_info as b on a.xsid=b.ygid where year([cjrq]) between @syear and @eyear and month([cjrq]) between @smonth and @emonth and day([cjrq]) between @sday and @eday and b.bmid='销售部门' group by b.ygxm,b.zb
select count(a.xsid),b.ygxm as c,b.zb,sum(isnull(a.other,0)) from cjdb as a inner join employment_info as b on a.xsid=b.ygid where year([cjrq]) between @syear and @eyear and month([cjrq]) between @smonth and @emonth and day([cjrq]) between @sday and @eday and b.bmid='销售部门' group by b.ygxm,b.zb
other亦可简化一下: other=case when sum(cast(a.other as int))=0 then '' else ltrim(sum(cast(a.other as int))) end
就是说根据select count(a.xsid),b.ygxm as c,b.zb from cjdb as a inner join employment_info as b on a.xsid=b.ygid where year([cjrq]) between @syear and @eyear and month([cjrq]) between @smonth and @emonth and day([cjrq]) between @sday and @eday and b.bmid='销售部门' group by b.ygxm,b.zb 得到了正确的结果 但我现在要加个a.other进去,就是说b.ygxm都是一个名字,但里面的other值是不一样,如 ygxm other 小金 一半 小金 两半 把a.other加进去之后,如: select count(a.xsid),b.ygxm as c,b.zb,a.other from cjdb as a inner join employment_info as b on a.xsid=b.ygid where year([cjrq]) between @syear and @eyear and month([cjrq]) between @smonth and @emonth and day([cjrq]) between @sday and @eday and b.bmid='销售部门' group by b.ygxm,b.zb,a.other 之后结果不是我想的 运行之后的结果是 id name value other 2 小喽 G 一半 1 小喽 G 两半 2 小喽喽 C 2 小盛 A 但我要的结果 id name value other 2 小盛 A 2 小喽喽 C 3 小喽 G 一半两半能实现吗
select sum(xsid+a.other),c,zb from ( select count(a.xsid) as a.xsid ,b.ygxm as c,b.zb,a.other from cjdb as a inner join employment_info as b on a.xsid=b.ygid where year([cjrq]) between @syear and @eyear and month([cjrq]) between @smonth and @emonth and day([cjrq]) between @sday and @eday and b.bmid='销售部门' group by b.ygxm,b.zb,a.other ) a group by c,zb
写错了,再改改:select sum(xsid),c,zb from ( select count(a.xsid) as a.xsid ,b.ygxm as c,b.zb,a.other from cjdb as a inner join employment_info as b on a.xsid=b.ygid where year([cjrq]) between @syear and @eyear and month([cjrq]) between @smonth and @emonth and day([cjrq]) between @sday and @eday and b.bmid='销售部门' group by b.ygxm,b.zb,a.other ) a group by c,zb
--带符号合并行列转换--有表t,其数据如下: a b 1 1 1 2 1 3 2 1 2 2 3 1 --如何转换成如下结果: a b 1 1,2,3 2 1,2 3 1 create table tb ( a int, b int ) insert into tb(a,b) values(1,1) insert into tb(a,b) values(1,2) insert into tb(a,b) values(1,3) insert into tb(a,b) values(2,1) insert into tb(a,b) values(2,2) insert into tb(a,b) values(3,1) goif object_id('pubs..f_hb') is not null drop function f_hb go--创建一个合并的函数 create function f_hb(@a int) returns varchar(8000) as begin declare @str varchar(8000) set @str = '' select @str = @str + ',' + cast(b as varchar) from tb where a = @a set @str = right(@str , len(@str) - 1) return(@str) End go--调用自定义函数得到结果: select distinct a ,dbo.f_hb(a) as b from tbdrop table tb--结果 a b ----------- ------ 1 1,2,3 2 1,2 3 1(所影响的行数为 3 行) 多个前列的合并 数据的原始状态如下: ID PR CON OP SC 001 p c 差 6 001 p c 好 2 001 p c 一般 4 002 w e 差 8 002 w e 好 7 002 w e 一般 1 =========================== 用SQL语句实现,变成如下的数据 ID PR CON OPS 001 p c 差(6),好(2),一般(4) 002 w e 差(8),好(7),一般(1)if object_id('pubs..tb') is not null drop table tb gocreate table tb ( id varchar(10), pr varchar(10), con varchar(10), op varchar(10), sc int )
insert into tb(ID,PR,CON,OP,SC) values('001', 'p', 'c', '差', 6) insert into tb(ID,PR,CON,OP,SC) values('001', 'p', 'c', '好', 2) insert into tb(ID,PR,CON,OP,SC) values('001', 'p', 'c', '一般', 4) insert into tb(ID,PR,CON,OP,SC) values('002', 'w', 'e', '差', 8) insert into tb(ID,PR,CON,OP,SC) values('002', 'w', 'e', '好', 7) insert into tb(ID,PR,CON,OP,SC) values('002', 'w', 'e', '一般', 1) goif object_id('pubs..test') is not null drop table test go select ID,PR,CON , OPS = op + '(' + cast(sc as varchar(10)) + ')' into test from tb--创建一个合并的函数 if object_id('pubs..f_hb') is not null drop function f_hb go create function f_hb(@id varchar(10),@pr varchar(10),@con varchar(10)) returns varchar(8000) as begin declare @str varchar(8000) set @str = '' select @str = @str + ',' + cast(OPS as varchar) from test where id = @id and @pr = pr and @con = con set @str = right(@str , len(@str) - 1) return(@str) End go--调用自定义函数得到结果: select distinct id ,pr , con , dbo.f_hb(id,pr,con) as OPS from testdrop table tb drop table test--结果 id pr con OPS ---------- ---------- ---------- ------------------- 001 p c 差(6),好(2),一般(4) 002 w e 差(8),好(7),一般(1)(所影响的行数为 2 行)create table b (col varchar(20))insert b values ('a') insert b values ('b') insert b values ('c') insert b values ('d') insert b values ('e') declare @sql varchar(1024) set @sql='' select @sql=@sql+b.col+',' from (select col from b) as b set @sql='select '''+@sql+'''' exec(@sql)
other=case when sum(case when a.other='' then 0 else cast(a.other as int) end)=0 then '' else ltrim(sum(case when a.other='' then 0 else cast(a.other as int) end)) end
from cjdb as a inner join employment_info as b on a.xsid=b.ygid where year([cjrq]) between @syear and @eyear and month([cjrq]) between @smonth and @emonth and
day([cjrq]) between @sday and @eday and b.bmid='销售部门'
group by b.ygxm,b.zb
day([cjrq]) between @sday and @eday and b.bmid='销售部门'
group by b.ygxm,b.zb
other=case when sum(cast(a.other as int))=0 then '' else ltrim(sum(cast(a.other as int))) end
day([cjrq]) between @sday and @eday and b.bmid='销售部门'
group by b.ygxm,b.zb
得到了正确的结果
但我现在要加个a.other进去,就是说b.ygxm都是一个名字,但里面的other值是不一样,如
ygxm other
小金 一半
小金 两半
把a.other加进去之后,如:
select count(a.xsid),b.ygxm as c,b.zb,a.other from cjdb as a inner join employment_info as b on a.xsid=b.ygid where year([cjrq]) between @syear and @eyear and month([cjrq]) between @smonth and @emonth and
day([cjrq]) between @sday and @eday and b.bmid='销售部门'
group by b.ygxm,b.zb,a.other
之后结果不是我想的
运行之后的结果是
id name value other
2 小喽 G 一半
1 小喽 G 两半
2 小喽喽 C
2 小盛 A
但我要的结果
id name value other
2 小盛 A
2 小喽喽 C
3 小喽 G 一半两半能实现吗
select sum(xsid+a.other),c,zb from
(
select count(a.xsid) as a.xsid ,b.ygxm as c,b.zb,a.other from cjdb as a inner join employment_info as b on a.xsid=b.ygid where year([cjrq]) between @syear and @eyear and month([cjrq]) between @smonth and @emonth and
day([cjrq]) between @sday and @eday and b.bmid='销售部门'
group by b.ygxm,b.zb,a.other
) a
group by c,zb
(
select count(a.xsid) as a.xsid ,b.ygxm as c,b.zb,a.other from cjdb as a inner join employment_info as b on a.xsid=b.ygid where year([cjrq]) between @syear and @eyear and month([cjrq]) between @smonth and @emonth and
day([cjrq]) between @sday and @eday and b.bmid='销售部门'
group by b.ygxm,b.zb,a.other
) a
group by c,zb
a b
1 1
1 2
1 3
2 1
2 2
3 1
--如何转换成如下结果:
a b
1 1,2,3
2 1,2
3 1 create table tb
(
a int,
b int
)
insert into tb(a,b) values(1,1)
insert into tb(a,b) values(1,2)
insert into tb(a,b) values(1,3)
insert into tb(a,b) values(2,1)
insert into tb(a,b) values(2,2)
insert into tb(a,b) values(3,1)
goif object_id('pubs..f_hb') is not null
drop function f_hb
go--创建一个合并的函数
create function f_hb(@a int)
returns varchar(8000)
as
begin
declare @str varchar(8000)
set @str = ''
select @str = @str + ',' + cast(b as varchar) from tb where a = @a
set @str = right(@str , len(@str) - 1)
return(@str)
End
go--调用自定义函数得到结果:
select distinct a ,dbo.f_hb(a) as b from tbdrop table tb--结果
a b
----------- ------
1 1,2,3
2 1,2
3 1(所影响的行数为 3 行)
多个前列的合并
数据的原始状态如下:
ID PR CON OP SC
001 p c 差 6
001 p c 好 2
001 p c 一般 4
002 w e 差 8
002 w e 好 7
002 w e 一般 1
===========================
用SQL语句实现,变成如下的数据
ID PR CON OPS
001 p c 差(6),好(2),一般(4)
002 w e 差(8),好(7),一般(1)if object_id('pubs..tb') is not null
drop table tb
gocreate table tb
(
id varchar(10),
pr varchar(10),
con varchar(10),
op varchar(10),
sc int
)
insert into tb(ID,PR,CON,OP,SC) values('001', 'p', 'c', '差', 6)
insert into tb(ID,PR,CON,OP,SC) values('001', 'p', 'c', '好', 2)
insert into tb(ID,PR,CON,OP,SC) values('001', 'p', 'c', '一般', 4)
insert into tb(ID,PR,CON,OP,SC) values('002', 'w', 'e', '差', 8)
insert into tb(ID,PR,CON,OP,SC) values('002', 'w', 'e', '好', 7)
insert into tb(ID,PR,CON,OP,SC) values('002', 'w', 'e', '一般', 1)
goif object_id('pubs..test') is not null
drop table test
go
select ID,PR,CON , OPS = op + '(' + cast(sc as varchar(10)) + ')' into test from tb--创建一个合并的函数
if object_id('pubs..f_hb') is not null
drop function f_hb
go
create function f_hb(@id varchar(10),@pr varchar(10),@con varchar(10))
returns varchar(8000)
as
begin
declare @str varchar(8000)
set @str = ''
select @str = @str + ',' + cast(OPS as varchar) from test where id = @id and @pr = pr and @con = con
set @str = right(@str , len(@str) - 1)
return(@str)
End
go--调用自定义函数得到结果:
select distinct id ,pr , con , dbo.f_hb(id,pr,con) as OPS from testdrop table tb
drop table test--结果
id pr con OPS
---------- ---------- ---------- -------------------
001 p c 差(6),好(2),一般(4)
002 w e 差(8),好(7),一般(1)(所影响的行数为 2 行)create table b
(col varchar(20))insert b values ('a')
insert b values ('b')
insert b values ('c')
insert b values ('d')
insert b values ('e')
declare @sql varchar(1024)
set @sql=''
select @sql=@sql+b.col+',' from (select col from b) as b
set @sql='select '''+@sql+''''
exec(@sql)