クエリは、年と月の両方を手配

Question

これは、DB構造

ある

USE [Fiefo] 
GO 
/****** Object: UserDefinedFunction [dbo].[practicefunc] Script Date: 05/24/2017 16:46:37 ******/ 
SET ANSI_NULLS ON 
GO 
SET QUOTED_IDENTIFIER ON 
GO 
ALTER function [dbo].[practicefunc] 
(@startdate varchar(50), @enddate varchar(50), @userid varchar(50)) 
Returns Table 
As 
Return(select count(Activity.act_id) as TotalActivities ,count(Contact.c_id) as TotalContact , 
MONTH(Activity.added_on) as [Month], 
     Year(Activity.added_on) as [Year] 
from Activity 
INNER JOIN Contact 
ON Activity.ref_id=Contact.c_id 

WHERE Activity.added_on >= @startdate and Activity.added_on <= @enddate 
AND  Activity.added_by = @userid 

GROUP BY MONTH(Activity.added_on),Year(Activity.added_on)) 

このクエリの結果です：カテゴリが= 'FOLを追加する場所

今私は、そのカウントの活動をフォローアップの別の列を追加するには-act_id月と年に応じてカウントアップを行います。 これをどのように達成できますか？

Answer 1

あなたのフィルタを用いて1または0の列を計算し、このように、この列を合計することができます：Ctrl + Kキーを使用して

select count(Activity.act_id) as TotalActivities ,count(Contact.c_id) as TotalContact , MONTH(Activity.added_on) as [Month], Year(Activity.added_on) as [Year], 
sum(CASE WHEN Activity.category = 'add follow up' THEN 1 ELSE 0 END) as ComputedColumn 
from Activity INNER JOIN Contact ON Activity.ref_id=Contact.c_id 

WHERE Activity.added_on >= @startdate and Activity.added_on <= @enddate AND Activity.added_by = @userid 

GROUP BY MONTH(Activity.added_on),Year(Activity.added_on)