如何仅在ID列显示3次的查询中显示结果

Question

我有一个查询,显示来自客户的交易.我想做的是,只显示在一段时间内出现3次的结果.

例如:

如果我做: Select * from Table where dtcreated between @startdate and @enddate and result = 'Declined'

lcustomerid      dtcreated      result
   1               8/1/15        Declined
   1               8/2/15        Declined
   1               8/3/15        Declined
   2               8/1/15        Declined
   2               8/2/15        Declined
   2               8/3/15        Declined
   3               8/1/15        Declined
   3               8/3/15        Declined
   4               8/1/15        Declined

我想做的只是显示已经下降3次的那些.所以上面我只想看ID 1和2.

所以我正在寻找的结果是:

Select lcustomerid where dtcreated between @startdate and @enddate and result = 'Declined'

lcustomerid      
   1               
   2  

Answer 1

使用group by和having:

Select lcustomerid
from . . .
where dtcreated between @startdate and @enddate and result = 'Declined'
group by lcustomerid
having count(*) >= 3;