Sql 向查询添加筛选器

我有一个很好的查询：

select distinct f.client_id
from f_accession_daily f
left join SalesDWH..TestPractices tests
on tests.ClientID=f.CLIENT_ID
where tests.ClientID is null
group by f.client_id
having max(f.received_date) between '20120601' and '20120630'

我需要将结果集仅限制为

f.client_id

，其中该特定

f.client_id

的计数（*）在上个月为40或更大（即在“20120501”和“20120530”之间）。

以下是我尝试过的：

select distinct f.client_id
from f_accession_daily f
left join SalesDWH..TestPractices tests
on tests.ClientID=f.CLIENT_ID
where tests.ClientID is null
group by f.client_id
having max(f.received_date) between '20120601' and '20120630'
) NotOrderedIn6Months
on f.CLIENT_ID=NotOrderedIn6Months.CLIENT_ID
right join
(select client_id,COUNT(*) count from F_ACCESSION_DAILY
where RECEIVED_DATE between '20120501' and '20120530'
group by CLIENT_ID
having COUNT(*)>=40
) Having40
on Having40.CLIENT_ID=f.CLIENT_ID

---

预先汇总上个月的数据（5月有31天，而不是30天），然后加入其中

   select f.client_id
     from f_accession_daily f
     join (
        select client_id
          from f_accession_daily
         where received_date between '20120501' and '20120531'
      group by client_id
        having count(*) >= 40
      ) A on A.client_id = f.client_id
left join SalesDWH..TestPractices tests
       on tests.ClientID=f.CLIENT_ID
    where tests.ClientID is null
 group by f.client_id
   having max(f.received_date) between '20120601' and '20120630';

另外请注意，当您已经有分组依据时，您不需要使用DISTINCT。

只需添加

AND f.client_id IN
(SELECT client_id FROM F_ACCESSION_DAILY
WHERE RECEIVED_DATE BETWEEN '20120501' AND '20120530'
GROUP BY client_id
HAVING COUNT(*) >= 40)

到原始查询的where子句