Is there a way to run a query for a specified amount of time, say the last 5 months, and to be able to return how many records were created each month? Here's what my table looks like:
SELECT rID, dateOn FROM claims
SELECT COUNT(rID) AS ClaimsPerMonth,
MONTH(dateOn) AS inMonth,
YEAR(dateOn) AS inYear FROM claims
WHERE dateOn >= DATEADD(month, -5, GETDATE())
GROUP BY MONTH(dateOn), YEAR(dateOn)
ORDER BY inYear, inMonth
In this query the WHERE dateOn >= DATEADD(month, -5, GETDATE()) ensures that it's for the past 5 months, the GROUP BY MONTH(dateOn) then allows it to count per month.
And to appease the community, here is a SQL Fiddle to prove it.
Unlike the other two answers, this will return all 5 months, even when the count is 0. It will also use an index on the onDate column, if a suitable one exists (the other two answers so far are non-sargeable).
DECLARE #nMonths INT = 5;
;WITH m(m) AS
(
SELECT TOP (#nMonths) DATEADD(MONTH, DATEDIFF(MONTH, 0, GETDATE())-number, 0)
FROM master.dbo.spt_values WHERE [type] = N'P' ORDER BY number
)
SELECT m.m, num_claims = COUNT(c.rID)
FROM m LEFT OUTER JOIN dbo.claims AS c
ON c.onDate >= m.m AND c.onDate < DATEADD(MONTH, 1, m.m)
GROUP BY m.m
ORDER BY m.m;
You also don't have to use a variable in the TOP clause, but this might make the code more reusable (e.g. you could pass the number of months as a parameter).
SELECT
count(rID) as Cnt,
DatePart(Month, dateOn) as MonthNumber,
Max(DateName(Month, dateOn)) as MonthName
FROM claims
WHERE dateOn >= DateAdd(Month, -5, getdate())
GROUP BY DatePart(Month, dateOn)
Related
Im trying to find records that have not had notes created during the last 1 month. The table only registers when a note is created.
I am trying to find NULL values, but that would not be the correct logic
SELECT *
FROM vpersonnotesalldata AS pn
WHERE pn.flddatecreated > '20190501'
AND pn.fldnotedatecreated < '20190530'
If you want records which don't have a note in last 30 days, try this:
select p.* from person p where personid not in (
select personid from Note where dateCreated < dateadd(d, -30, GetDate())
)
Obviously use your actual table names in your sql
Try this with example last month
SELECT *
FROM vpersonnotesalldata AS pn
WHERE pn.NoteColumnHERE IS NULL
AND pn.CreateDateColumnHERE
BETWEEN '01.05.2019'
AND '31.05.2019'
It picks all pn.NoteColumnHERE which are NULL in the Span of pn.CreateDateColumnHERE BETWEEN 01.05. and 31.05.
I hope the Date Input is correct for your SQL Version. In Microsoft SQL it is working!
The performance will be much better if you use EXISTS / NOT EXISTS instead of IN / NOT IN
SELECT *
FROM Client C
WHERE NOT EXISTS (
SELECT 1
FROM vpersonnotesalldata
WHERE
fldClientNumber = C.fldClientNumber
AND fldnotedatecreated BETWEEN
DATEADD(MONTH, DATEDIFF(MONTH, 0, GETDATE())-1, 0) --First day of previous month
AND DATEADD(MONTH, DATEDIFF(MONTH, -1, GETDATE())-1, -1) --Last Day of previous month
)
I am trying to show the count and percentage in a table.
The query I used is this:
DECLARE #BeginDate AS DATETIME
SET #BeginDate = GETDATE();
SELECT TOP 10
s.Title AS Title, COUNT(*) AS TotalSessions
FROM
History s
WHERE
CONVERT(DATE, s.DateStamp) >= DATEADD(DAY, -7, #BeginDate)
AND CONVERT(DATE, s.DateStamp) <= DATEADD(DAY, -1, #BeginDate)
GROUP BY
Title
ORDER BY
TotalSessions DESC
This returns the top 1o records and now
I want to show the percentage value with respect to total as the third column. Can I do this in same query?
I want to show the remaining count as others (if 100 records are there, first 10 rows shows top 10 records and row #11 shows sum of remaining 90 records with title "Others"). Can I do it in the same query?
You can use window functions. Something like this:
SELECT TOP 10 s.Title as Title, count(*) as TotalSessions,
COUNT(*) * 1.0 / SUM(COUNT(*)) OVER ()
FROM History s
WHERE convert(date,s.DateStamp) >= DATEADD(DAY, -7, #BeginDate)
AND convert(date,s.DateStamp) <= DATEADD(DAY, -1, #BeginDate)
GROUP BY Title
ORDER BY TotalSessions DESC
My table creates a new record with timestamp daily when an integration is successful. I am trying to create a query that would check (preferably automated) the number of days in a month vs number of records in the table within a time frame.
For example, January has 31 days, so i would like to know how many days in january my process was not successful. If the number of records is less than 31, than i know the job failed 31 - x times.
I tried the following but was not getting very far:
SELECT COUNT (DISTINCT CompleteDate)
FROM table
WHERE CompleteDate BETWEEN '01/01/2015' AND '01/31/2015'
Every 7 days the system executes the job twice, so i get two records on the same day, but i am trying to determine the number of days that nothing happened (failures), so i assume some truncation of the date field is needed?!
One way to do this is to use a calendar/date table as the main source of dates in the range and left join with that and count the number of null values.
In absence of a proper date table you can generate a range of dates using a number sequence like the one found in the master..spt_values table:
select count(*) failed
from (
select dateadd(day, number, '2015-01-01') date
from master..spt_values where type='P' and number < 365
) a
left join your_table b on a.date = b.CompleteDate
where b.CompleteDate is null
and a.date BETWEEN '01/01/2015' AND '01/31/2015'
Sample SQL Fiddle (with count grouped by month)
Assuming you have an Integers table*. This query will pull all dates where no record is found in the target table:
declare #StartDate datetime = '01/01/2013',
#EndDate datetime = '12/31/2013'
;with d as (
select *, date = dateadd(d, i - 1 , #StartDate)
from dbo.Integers
where i <= datediff(d, #StartDate, #EndDate) + 1
)
select d.date
from d
where not exists (
select 1 from <target> t
where DATEADD(dd, DATEDIFF(dd, 0, t.<timestamp>), 0) = DATEADD(dd, DATEDIFF(dd, 0, d.date), 0)
)
Between is not safe here
SELECT 31 - count(distinct(convert(date, CompleteDate)))
FROM table
WHERE CompleteDate >= '01/01/2015' AND CompleteDate < '02/01/2015'
You can use the following query:
SELECT DATEDIFF(day, t.d, dateadd(month, 1, t.d)) - COUNT(DISTINCT CompleteDate)
FROM mytable
CROSS APPLY (SELECT CAST(YEAR(CompleteDate) AS VARCHAR(4)) +
RIGHT('0' + CAST(MONTH(CompleteDate) AS VARCHAR(2)), 2) +
'01') t(d)
GROUP BY t.d
SQL Fiddle Demo
Explanation:
The value CROSS APPLY-ied, i.e. t.d, is the ANSI string of the first day of the month of CompleteDate, e.g. '20150101' for 12/01/2015, or 18/01/2015.
DATEDIFF uses the above mentioned value, i.e. t.d, in order to calculate the number of days of the month that CompleteDate belongs to.
GROUP BY essentially groups by (Year, Month), hence COUNT(DISTINCT CompleteDate) returns the number of distinct records per month.
The values returned by the query are the differences of [2] - 1, i.e. the number of failures per month, for each (Year, Month) of your initial data.
If you want to query a specific Year, Month then just simply add a WHERE clause to the above:
WHERE YEAR(CompleteDate) = 2015 AND MONTH(CompleteDate) = 1
Consider a table entitled 'Calls', that among other things, contains the following columns:
CalledNumber | CallBegin
-----------------------------------
004401151234567|10/08/2013 09:06:53
004303111238493|15/09/2013 14:56:29
and so on...
How would one go about picking out the hour that, averaged over a date range, holds the highest number of rows? The goal is to find the 'Busy Hour' for each quarter in a year. SQL really isn't my forte here, and I'm looking at manipulating up to a 9.6Million rows at times, although, execution time isn't a key problem.
DATEPART is what you're looking for:
SELECT
DATEPART(hour, CallBegin), COUNT(*) as NumberOfCalls
FROM
Test
WHERE
CallBegin BETWEEN '2013-01-01' AND '2013-12-31'
GROUP BY
DATEPART(hour, CallBegin)
ORDER BY
NumberOfCalls DESC
Working DEMO
Use DATEPART. I.e.,
SELECT DATEPART(hh, CallBegin) ,
COUNT(1) as callCount
FROM Calls
GROUP BY DATEPART(hh, CallBegin)
ORDER BY callCount DESC
You can use DATEPART() and CONVERT(), I'm assuming CallBegin is not stored as datetime:
SELECT YEAR(CONVERT(DATETIME,CallBegin,103))'Year'
, DATEPART(quarter,CONVERT(DATETIME,CallBegin,103))'Quarter'
, DATEPART(hour,CONVERT(DATETIME,CallBegin,103))'Hour'
, COUNT(*)
FROM Calls
GROUP BY YEAR(CONVERT(DATETIME,CallBegin,103))
, DATEPART(quarter,CONVERT(DATETIME,CallBegin,103))
, DATEPART(hour,CONVERT(DATETIME,CallBegin,103))
If you want to span years just eliminate the year portion:
SELECT DATEPART(quarter,CONVERT(DATETIME,CallBegin,103))'Quarter'
, DATEPART(hour,CONVERT(DATETIME,CallBegin,103))'Hour'
, COUNT(*)
FROM Calls
GROUP BY DATEPART(quarter,CONVERT(DATETIME,CallBegin,103))
, DATEPART(hour,CONVERT(DATETIME,CallBegin,103))
Rather than datePart, try using DateAdd() and DateDiff()
Select top 1 DateAdd(hour, DateDiff(hour, 0, CallBegin), 0)
From Calls
Group By DateAdd(hour, DateDiff(hour, 0, CallBegin), 0)
Order By Count(*) Desc
This will perform better because it is purely arithmetic, i.e., there is no parsing of textual representations of dates and/or dateTimes.
Add the count to see how many occurred during that hour
Select top 1 DateAdd(hour, DateDiff(hour, 0, CallBegin), 0), Count(*)
From Calls
Group By DateAdd(hour, DateDiff(hour, 0, CallBegin), 0)
Order By Count(*) Desc
In an SQL Server procedure, I need to get all rows matching some constraints(simple where conditions), and then group them by month.
The goal is to create a graph(in Sql server reporting services), which display all data.
I've already something like this:
Select Count(*) AS Count, Month(a.issueDate) AS Month, Year(a.issueDate) AS Year
FROM MyTable a
WHERE
....
GROUP BY YEAR(a.issueDate), MONTH(a.issueDate)
I got my data, I got my graph, but the problem is that if I've NOT any rows in "MyTable", which match my Where conditions, I won't have any rows.
The result is that I've a graph Starting with january, skipping february, and then displaying march.
I cannot post-process data since it's directly connected to the SQL Server Reporting Services report.
Since I have this problem for ~20 stored procedure, I will appreciate to have the simpliest way of doing it.
Thank you very much for your advices
Let's say you want a specific year:
DECLARE #year INT;
SET #year = 2012;
DECLARE #start SMALLDATETIME;
SET #start = DATEADD(YEAR, #year-1900, 0);
;WITH y AS (SELECT TOP (12) rn = ROW_NUMBER() OVER (ORDER BY [object_id])-1
FROM sys.all_objects ORDER BY [object_id])
SELECT DATEADD(MONTH, y.rn, #start), COUNT(t.issueDate)
FROM y
LEFT OUTER JOIN dbo.MyTable AS t
ON t.issueDate >= DATEADD(MONTH, y.rn, #start)
AND t.issueDate < DATEADD(MONTH, y.rn + 1, #start)
GROUP BY DATEADD(MONTH, y.rn, #start);
If it's not a specific year, then you can do it slightly differently to cover any date range, as long as you provide the 1st day of the 1st month and the 1st day of the last month (or pass 4 integers and construct the dates manually):
DECLARE #startdate SMALLDATETIME, #enddate SMALLDATETIME;
SELECT #startdate = '20111201', #enddate = '20120201';
;WITH y AS (SELECT TOP (DATEDIFF(MONTH, #startdate, #enddate)+1)
rn = ROW_NUMBER() OVER (ORDER BY [object_id])-1
FROM sys.all_objects ORDER BY [object_id]
)
SELECT DATEADD(MONTH, y.rn, #startdate), COUNT(t.issueDate)
FROM y
LEFT OUTER JOIN dbo.MyTable AS t
ON t.issueDate >= DATEADD(MONTH, y.rn, #startdate)
AND t.issueDate < DATEADD(MONTH, y.rn + 1, #startdate)
GROUP BY DATEADD(MONTH, y.rn, #startdate);
In report builder, right click on the date axis, select properties, and then set the axis up as a date range, it will add the empty columns for you, and you won't have to change your SQL
You need to build a table (a Table variable would work best here) that contains all year/month combinations from your minimum to maximum.
You then need to cross join this with your main query to get results for all year/months ready for the graph.