Question

我需要在多年内同时显示以下结果。因此，我不想在2014年，2015年以及2016年运行此报告，而是希望在三年内运行一次（@startDate＆amp; @endDate）。不确定汇总是否有效？还是分组？用户希望比较多年的数据。谢谢！

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Answer 1

根据需要在year(srv.srv_date) as srv_year，select和group by添加order by列：

select year(srv.srv_date) as srv_year, ct.srv_ct_label as service, count (distinct cln.cln_urn) as total
 from cw_domain dmn
inner join cw_service srv on srv.srv_dmn_fk=dmn.dmn_pk
inner join cw_client cln on cln.cln_pk=srv.srv_cln_fk
inner join cw_subservice sbs on sbs.sbs_pk=srv.srv_sbs_fk
inner join cw_service_category ct on ct.srv_ct_rpk=sbs.sbs_srv_ct_rfk
where
srv_ct_rpk in (
'001',
'002',
'004',
'025',
'040',
'003',
'026',
'017',
'016',
'034',
'041',
'042',
'018',
'029'
)
and srv.srv_date >=@startDate and srv.srv_date <=endDate
group by year(srv.srv_date), ct.srv_ct_label, srv_ct_rpk, srv.srv_date
order by year(srv.srv_date),
case srv_ct_rpk
when '001' then 1
when'040' then 2
when '003' then 3
when '025' then 4
when '002' then 5
when '004' then 6
when '041' then 7
when '026' then 8
when '017' then 9
when '034' then 10
when '042' then 11
when '018' then 12
when '029' then 13
end

Answer 2

您似乎希望以横向方式比较和显示它们。因此，我建议使用selfjoin，如下所示。

select * from
(select ... 
from tableA join tableB join ...
on ...
where srv.srv_date = 2014) as a
JOIN
(select ... 
from tableA join tableB join ...
on ...
where srv.srv_date = 2015) as b ON ...
JOIN
(select ... 
from tableA join tableB join ...
on ...
where srv.srv_date = 2016) as c ON ...

多年的数据。

2 个答案: