Question

我有一个包含StatusID列的表，其中包含许多不同的可能值，我要做的是按以下格式生成一个能够生成各种条件计数的报告。

期望输出：

Notes | Total | Valid | Invalid | Consults Booked |

总计是返回的所有行的计数 - 已在下面的查询中

有效的StatusID不是5，7或42

5，7和42的数量无效

预订的咨询数是4

的计数

（无效+有效应等于总计）

到目前为止，我只能设法获取Total，我不知道如何使用IF或其他任何内容确定其他值。

查询到目前为止

select notes, tLeadStatus.Status, tLeadStatus.StatusID,
       count(*) as Total from LeadManagement.dbo.tLead with (NOLOCK)
left join LeadManagement.dbo.tInternetLead on tLead.Leadid = tinternetlead.leadid
left join LeadManagement..tLeadStatus on tLeadStatus.StatusID = tLead.Status
where (CampaignID = '12327')
  and (registerdate >= '2013-03-01' and registerdate < '2013-04-01')
group by notes,tLeadStatus.StatusID,tLeadStatus.Status

Answer 1

SUM(CASE WHEN StatusID NOT IN (5, 7, 42) THEN 1 ELSE 0 END) AS Valid,
SUM(CASE WHEN StatusID IN (5, 7, 42) THEN 1 ELSE 0 END) AS Invalid,
SUM(CASE WHEN StatusId = 4 THEN 1 ELSE 0 END) AS 'Consults Booked'

Answer 2

您可以使用带CASE的聚合函数来获取其他列：

select notes, 
  count(*) as Total,
  sum(case when tLeadStatus.StatusID not in (5, 7, 42) then 1 else 0 end) Valid,
  sum(case when tLeadStatus.StatusID  in (5, 7, 42) then 1 else 0 end) Invalid,
  sum(case when tLeadStatus.StatusID= 4 then 1 else 0 end) ConsultsBooked
from LeadManagement.dbo.tLead with (NOLOCK)
left join LeadManagement.dbo.tInternetLead 
  on   tLead.Leadid = tinternetlead.leadid
left join LeadManagement..tLeadStatus 
  on tLeadStatus.StatusID = tLead.Status
where (CampaignID = '12327')
  and (registerdate >= '2013-03-01' and registerdate < '2013-04-01')
group by notes

SQL - 如何计算一列中多次出现的值

2 个答案: