一.
在行轉列時，拼結多個問題的答案，放到乙個列中顯示
create function [dbo].[aggregatestring]
( @func_code varchar(20),
@emp_id int,
@store_id int,
@biz_date varchar(20),
@acvt_id int,
@qst_id int ---問題id
) returns varchar(1024)
as begin
declare @str varchar(1024)
select @str = isnull(@str+',','')+val
from v_visit_acvt_for_fac
where qst_id = @qst_id
and func_code =@func_code
and biz_date =@biz_date
and store_id =@store_id
and acvt_id=@acvt_id
and emp_id =@emp_id
return @str
endgo
二.行轉列，關鍵是有乙個固定的id值作為轉運的id,如果沒有這樣的固定id,可以考慮用虛擬的列。生成固定的id值。
with acvt_qstas(
select maq.acvt_id,
maq.qst_id,
mq.qst_name,
row_number() over(partition by maq.acvt_id order by maq.qst_id) rownum
from ms_acvt_qst maq
inner join ms_qst mq
on mq.id = maq.qst_id
where mq.qst_name <> '拍照' --and maq.acvt_id = 18
)select v.emp_id,
v.store_id,
v.biz_date,
v.img_id,
v.func_code,
v.acvt_id,
max(case when qcq.rownum = 1 and
v.qst_id = qcq.qst_id
then qcq.qst_name
else null
end ) as question1,
max(case when qcq.rownum = 1 and
v.qst_id = qcq.qst_id
then dbo.aggregatestring(func_code,emp_id,store_id,biz_date,v.acvt_id,v.qst_id)
else null
end ) as answer1,
max(case when qcq.rownum = 2 and
v.qst_id = qcq.qst_id
then qcq.qst_name
else null
end ) as question2,
max(case when qcq.rownum = 2 and
v.qst_id = qcq.qst_id
then dbo.aggregatestring(func_code,emp_id,store_id,biz_date,v.acvt_id,v.qst_id)
else null
end ) as answer2,
max(case when qcq.rownum = 3 and
v.qst_id = qcq.qst_id
then qcq.qst_name
else null
end ) as question3,
max(case when qcq.rownum = 3 and
v.qst_id = qcq.qst_id
then dbo.aggregatestring(func_code,emp_id,store_id,biz_date,v.acvt_id,v.qst_id)
else null
end ) as answer3,
max(case when qcq.rownum = 4 and
v.qst_id = qcq.qst_id
then qcq.qst_name
else null
end ) as question4,
max(case when qcq.rownum = 4 and
v.qst_id = qcq.qst_id
then dbo.aggregatestring(func_code,emp_id,store_id,biz_date,v.acvt_id,v.qst_id)
else null
end ) as answer4
from v_visit_acvt_temp v
inner join acvt_qst qcq
on qcq.acvt_id = v.acvt_id
where biz_date ='2012-03-01' and func_code ='fac_40'--and store_id =55140
group by v.emp_id,
v.store_id,
v.biz_date,
v.img_id,
v.func_code,
v.acvt_id
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