Sql Server : 10 분 간격으로 레코드 수를 계산합니다.

Question

현재 웹 응용 프로그램에 대한 방문을 기록하는 테이블이 있고 보고서를 작성할 수있는 코드를 작성하려고합니다. 시각화). 내가 원하는 것은 지난 24 시간 동안 매 10 분 간격으로 방문 횟수를 표시하는 것입니다.

나는 그 일을하는 쿼리가 있지만 방문이없는 10 분 간격이 있으며 이러한 쿼리의 간격을 0으로 표시하도록 쿼리를 조정하고 싶습니다. 나는 커서를 사용하여 무언가를 생각해 낼 수 있다고 생각하지만, 피할 수 있다면 커서를 사용하지 않을 것입니다.

 
INSERT INTO track_pageSubmit (popid,section,page,requestbegin,requestend,rendered,postbegin,postend) 
SELECT '2393712','Main_Can_Eng','10','2010-01-22 10:22:08.287','2010-01-22 10:22:08.330',NULL,'2010-01-22 10:22:09.503','2010-01-22 10:22:09.627' UNION 
SELECT '2393712','Main_Can_Eng','11','2010-01-22 10:22:09.660','2010-01-22 10:22:09.770',NULL,'2010-01-22 10:22:10.973','2010-01-22 10:22:11.050' UNION 
SELECT '2393712','Main_Can_Eng','12','2010-01-22 10:22:11.080','2010-01-22 10:22:11.143',NULL,'2010-01-22 10:22:12.503','2010-01-22 10:22:12.567' UNION 
SELECT '2394478','main','21','2010-01-21 10:38:54.057','2010-01-21 10:38:54.117','2010-01-21 10:38:54.487','2010-01-21 10:38:55.633','2010-01-21 10:38:55.697' UNION 
SELECT '2394478','main','22','2010-01-21 10:38:55.757','2010-01-21 10:38:55.820','2010-01-21 10:38:56.197','2010-01-21 10:38:57.477','2010-01-21 10:38:57.570' UNION 
SELECT '2394478','main','23','2010-01-21 10:38:57.617','2010-01-21 10:38:57.993','2010-01-21 10:38:58.367','2010-01-21 10:38:59.397','2010-01-21 10:38:59.493' UNION 
SELECT '2394478','main','25','2010-01-21 10:38:59.553','2010-01-21 10:38:59.617','2010-01-21 10:38:59.993','2010-01-21 10:39:01.227','2010-01-21 10:39:01.303' UNION 
SELECT '2394478','main','26','2010-01-21 10:39:01.350','2010-01-21 10:39:01.477','2010-01-21 10:39:01.860','2010-01-21 10:39:02.787','2010-01-21 10:39:02.867' UNION 
SELECT '2394478','main','27','2010-01-21 10:39:02.930','2010-01-21 10:39:03.007','2010-01-21 10:39:03.400','2010-01-21 10:39:04.147','2010-01-21 10:39:04.460' UNION 
SELECT '2394478','main','28','2010-01-21 10:39:04.507','2010-01-21 10:39:05.147','2010-01-21 10:39:05.790','2010-01-21 10:39:19.413','2010-01-21 10:39:19.477' UNION 
SELECT '2393754','exp46_cex','1','2010-01-22 12:40:56.563','2010-01-22 12:40:56.640',NULL,'2010-01-22 12:40:58.657','2010-01-22 12:40:58.733' UNION 
SELECT '2393754','exp46_cex','2','2010-01-22 12:40:58.750','2010-01-22 12:40:58.780',NULL,'2010-01-22 12:41:15.623','2010-01-22 12:41:15.657' UNION 
SELECT '2393754','additionalComments','1','2010-01-22 12:41:15.670','2010-01-22 12:41:15.733',NULL,'2010-01-22 12:41:19.000','2010-01-22 12:41:19.030' UNION 
SELECT '2393802','main','2','2010-01-22 12:44:50.857','2010-01-22 12:44:50.933',NULL,'2010-01-22 12:44:53.497','2010-01-22 12:44:53.557' UNION 
SELECT '2393802','main','3','2010-01-22 12:44:53.590','2010-01-22 12:44:53.667',NULL,'2010-01-22 12:44:56.370','2010-01-22 12:44:56.730' 

보너스 포인트 :

CREATE TABLE [dbo].[Track_PageSubmit](
    [id] [int] IDENTITY(1,1) NOT NULL, 
    [popid] [int] NOT NULL, 
    [section] [varchar](30) NULL, 
    [page] [int] NULL, 
    [requestBegin] [datetime] NULL, 
    [requestEnd] [datetime] NULL, 
    [rendered] [datetime] NULL, 
    [postBegin] [datetime] NULL, 
    [postEnd] [datetime] NULL 
)

그리고 여기이 기록의 일부처럼 보일 것입니다 : 여기

DECLARE @time int 
DECLARE @interval int 
SELECT @time=96 
SELECT @interval=10 
SELECT interval, 
COUNT(*) AS requestCount, 
DATEDIFF(MINUTE,DATEADD(HOUR,-1*@time-1,getDate()),interval)/@interval AS intervalPos 
FROM 
(SELECT DATEADD(MINUTE, FLOOR(DATEDIFF(MINUTE, getDate(), requestBegin)/(@interval*1.0)) * @interval,getDate()) 
FROM [track_pageSubmit] WHERE requestBegin IS NOT NULL AND DATEDIFF(HOUR,requestBegin,getDate()) < @time) AS I(interval) 
GROUP BY interval ORDER BY interval 

테이블 구조입니다 : 여기

지금까지 쿼리입니다 (저에게 감사드립니다.) 쿼리를 변경할 수있는 누구에게도 간격마다 고유 한 항목을보고 할 수 있습니다 (추가로 총 요청 수).

감사합니다.

Answer 1

- 샘플 데이터는 27시간에 걸쳐 있기 때문에이 조금 거친, 그러나 당신을 위해 작동합니다

DECLARE 
    @hours TINYINT, 
    @minute_interval TINYINT, 
    @start SMALLDATETIME; 

SELECT 
    @hours = 27, 
    @minute_interval = 10, 
    @start = '20100122 13:00'; 

;WITH x AS 
(
    SELECT TOP (@hours * (60/@minute_interval)) 
     n = ROW_NUMBER() OVER 
     (ORDER BY column_id) 
    FROM msdb.sys.columns 
), 
intervals(boundary) AS 
(
    SELECT CONVERT 
    (
     SMALLDATETIME, 
     DATEADD(MINUTE, (-n * @minute_interval), @start) 
    ) 
    FROM x 
) 
SELECT 
    i.boundary, 
    RequestCount = COUNT(d.id), 
    DistinctPopIDs = COUNT(DISTINCT d.popid) 
FROM 
    intervals AS i 
LEFT OUTER JOIN 
    dbo.Track_PageSubmit AS d 
    ON d.requestBegin >= i.boundary 
    AND d.requestBegin < DATEADD(MINUTE, @minute_interval, i.boundary) 
GROUP BY i.boundary 
ORDER BY i.boundary; 

Answer 2

쉬운 방법은 CTE를 사용하고 시작 시간 간격으로 도우미 테이블을 만들고 그 다음에 기본 쿼리에서 그 테이블을 그 사이에 사용하여 조인하는 것입니다.

의미가 있습니까? 약간의 예제 코드를 다룰 것이다.

DECLARE @time int 
DECLARE @interval int 
SELECT @time=96 
SELECT @interval=10 

DECLARE @count int 
SELECT @count=1 

;WITH daterange AS 
(
    SELECT 1 as [id], Max(requestbegin) as maxr, Min(requestBegin) as minr 
    FROM track_pagesubmit 
), intervals as 
(
    SELECT @count AS interval, minr as intervalpos 
    FROM daterange 
    WHERE [id] = 1 
    UNION ALL 
    SELECT interval+1 AS interval, 
      DATEADD(MINUTE,@interval,intervalpos) as intervalpos 
    FROM intervals 
    JOIN daterange on [ID] = 1 
    WHERE DATEADD(MINUTE,@interval,intervalpos) < maxr 
) 
SELECT interval, intervalpos, 
     COUNT(DISTINCT track_pagesubmit.popid) as popcount, 
     COUNT(track_pagesubmit.id AS requestcount 
FROM intervals 
LEFT JOIN track_pagesubmit ON requestbegin IS NOT NULL 
    AND requestBegin BETWEEN intervalpos AND DATEADD(ns,-1,DATEADD(MINUTE,@interval,intervalpos)) 
GROUP BY interval, intervalpos 
OPTION (MAXRECURSION 200) 

Answer 3

는 재귀 CTE는 항상 숫자 테이블을 능가 보이지만 both methods은 전통적으로이 사용됩니다.

Answer 4

:

WITH Nbrs_2(n) AS (SELECT 1 UNION SELECT 0), 
    Nbrs_1(n) AS (SELECT 1 FROM Nbrs_2 n1 CROSS JOIN Nbrs_2 n2), 
    Nbrs_0(n) AS (SELECT 1 FROM Nbrs_1 n1 CROSS JOIN Nbrs_1 n2), 
    Nbrs (n) AS (SELECT 1 FROM Nbrs_0 n1 CROSS JOIN Nbrs_0 n2) 
select n.n as TenMinuteInterval, count(case when t.requestBegin is null then null else 1 end) as Count 
from (
    SELECT n - 1 as n 
    FROM (SELECT ROW_NUMBER() OVER (ORDER BY n) 
    FROM Nbrs) D (n) 
    WHERE n <= 144 
) n 
left outer join track_pageSubmit t on n.n = floor((cast(requestBegin - convert(int, requestBegin) as decimal(10,3)) % 1) * 144) 
    and requestBegin between '2010-01-21' and '2010-01-22' 
group by n.n 

출력 :

TenMinuteInterval Count 
----------------------- 
0     0 
1     0 
2     0 
3     0 
4     0 
5     0 
6     0 
7     0 
8     0 
9     0 
10     0 
11     0 
12     0 
13     0 
14     0 
15     0 
16     0 
17     0 
18     0 
19     0 
20     0 
21     0 
22     0 
23     0 
24     0 
25     0 
26     0 
27     0 
28     0 
29     0 
30     0 
31     0 
32     0 
33     0 
34     0 
35     0 
36     0 
37     0 
38     0 
39     0 
40     0 
41     0 
42     0 
43     0 
44     0 
45     0 
46     0 
47     0 
48     0 
49     0 
50     0 
51     0 
52     0 
53     0 
54     0 
55     0 
56     0 
57     0 
58     0 
59     0 
60     0 
61     0 
62     0 
63     7 
64     0 
65     0 
66     0 
67     0 
68     0 
69     0 
70     0 
71     0 
72     0 
73     0 
74     0 
75     0 
76     0 
77     0 
78     0 
79     0 
80     0 
81     0 
82     0 
83     0 
84     0 
85     0 
86     0 
87     0 
88     0 
89     0 
90     0 
91     0 
92     0 
93     0 
94     0 
95     0 
96     0 
97     0 
98     0 
99     0 
100    0 
101    0 
102    0 
103    0 
104    0 
105    0 
106    0 
107    0 
108    0 
109    0 
110    0 
111    0 
112    0 
113    0 
114    0 
115    0 
116    0 
117    0 
118    0 
119    0 
120    0 
121    0 
122    0 
123    0 
124    0 
125    0 
126    0 
127    0 
128    0 
129    0 
130    0 
131    0 
132    0 
133    0 
134    0 
135    0 
136    0 
137    0 
138    0 
139    0 
140    0 
141    0 
142    0 
143    0