I have a column named as Quarter in which data is as below:
Quarter
--------
Q3-2017
Q2-2017
Q1-2017
Q4-2016
Q3-2016
Q2-2016
Q1-2016
Q1-2018
I want to find max() from above. How should I proceed.
When I tried with MAX() function it is giving me output as Q4-2017.
This is happening because it's giving you the max of the column which is in a string format. It's ordering it Alpha-numerically and that's the max value when you sort the data. If you want to order it as you expect, you need to use some string manipulation to break the values down for ordering.
CREATE TABLE #quarters
(
[quarter] NVARCHAR(10)
);
INSERT INTO #quarters ( quarter )
VALUES ( 'Q3-2017' ) ,
( 'Q2-2017' ) ,
( 'Q1-2017' ) ,
( 'Q4-2016' ) ,
( 'Q3-2016' ) ,
( 'Q2-2016' ) ,
( 'Q1-2016' ) ,
( 'Q1-2018' );
SELECT q.quarter Original ,
CAST(RIGHT(q.quarter, 4) AS INT) AS TheYear , -- extracts the year
CAST(SUBSTRING(q.quarter, 2, 1) AS INT) AS TheQuarter -- extracts the quarter
FROM #quarters AS q
ORDER BY CAST(RIGHT(q.quarter, 4) AS INT) DESC ,
CAST(SUBSTRING(q.quarter, 2, 1) AS INT) DESC;
DROP TABLE #quarters;
Produces:
Original TheYear TheQuarter
---------- ----------- -----------
Q1-2018 2018 1
Q3-2017 2017 3
Q2-2017 2017 2
Q1-2017 2017 1
Q4-2016 2016 4
Q3-2016 2016 3
Q2-2016 2016 2
Q1-2016 2016 1
The above solution would also work without the casting: CAST((XXX) AS INT), but it's safer to do that in case an unexpected value appears.
And to get the top value, use TOP:
SELECT TOP 1 q.quarter Original
FROM #quarters AS q
ORDER BY CAST(RIGHT(q.quarter, 4) AS INT) DESC ,
CAST(SUBSTRING(q.quarter, 2, 1) AS INT) DESC;
You can use query like :
SELECT quarter from QuarterTable where right(quarter,4) = (select max(right(quarter,4) from QuarterTable);
Split quarter field into year (numeric!) and quarter (string), and order by at your taste.
Get first row (top 1) to get only the max value:
SELECT TOP 1 quarter,
CAST(SUBSTRING(quarter, 4, 4) AS INTEGER) AS y,
SUBSTRING(quarter, 1, 2) AS q FROM quarter
ORDER BY y desc, q desc
Related
There's a table with three columns: start date, end date and task duration in hours. For example, something like that:
Id
StartDate
EndDate
Duration
1
07-11-2022
15-11-2022
40
2
02-09-2022
02-11-2022
122
3
10-10-2022
05-11-2022
52
And I want to get a table like that:
Id
Month
HoursPerMonth
1
11
40
2
09
56
2
10
62
2
11
4
3
10
42
3
11
10
Briefly, I wanted to know, how many working hours is in each month between start and end dates. Proportionally. How can I achieve that by MS SQL Query? Data is quite big so the query speed is important enough. Thanks in advance!
I've tried DATEDIFF and EOMONTH, but that solution doesn't work with tasks > 2 months. And I'm sure that this solution is bad decision. I hope, that it can be done more elegant way.
Here is an option using an ad-hoc tally/calendar table
Not sure I'm agree with your desired results
Select ID
,Month = month(D)
,HoursPerMonth = (sum(1.0) / (1+max(datediff(DAY,StartDate,EndDate)))) * max(Duration)
From YourTable A
Join (
Select Top 75000 D=dateadd(day,Row_Number() Over (Order By (Select NULL)),0)
From master..spt_values n1, master..spt_values n2
) B on D between StartDate and EndDate
Group By ID,month(D)
Order by ID,Month
Results
This answer uses CTE recursion.
This part just sets up a temp table with the OP's example data.
DECLARE #source
TABLE (
SOURCE_ID INT
,STARTDATE DATE
,ENDDATE DATE
,DURATION INT
)
;
INSERT
INTO
#source
VALUES
(1, '20221107', '20221115', 40 )
,(2, '20220902', '20221102', 122 )
,(3, '20221010', '20221105', 52 )
;
This part is the query based on the above data. The recursive CTE breaks the time period into months. The second CTE does the math. The final selection does some more math and presents the results the way you want to seem them.
WITH CTE AS (
SELECT
SRC.SOURCE_ID
,SRC.STARTDATE
,SRC.ENDDATE
,SRC.STARTDATE AS 'INTERIM_START_DATE'
,CASE WHEN EOMONTH(SRC.STARTDATE) < SRC.ENDDATE
THEN EOMONTH(SRC.STARTDATE)
ELSE SRC.ENDDATE
END AS 'INTERIM_END_DATE'
,SRC.DURATION
FROM
#source SRC
UNION ALL
SELECT
CTE.SOURCE_ID
,CTE.STARTDATE
,CTE.ENDDATE
,CASE WHEN EOMONTH(CTE.INTERIM_START_DATE) < CTE.ENDDATE
THEN DATEADD( DAY, 1, EOMONTH(CTE.INTERIM_START_DATE) )
ELSE CTE.STARTDATE
END
,CASE WHEN EOMONTH(CTE.INTERIM_START_DATE, 1) < CTE.ENDDATE
THEN EOMONTH(CTE.INTERIM_START_DATE, 1)
ELSE CTE.ENDDATE
END
,CTE.DURATION
FROM
CTE
WHERE
CTE.INTERIM_END_DATE < CTE.ENDDATE
)
, CTE2 AS (
SELECT
CTE.SOURCE_ID
,CTE.STARTDATE
,CTE.ENDDATE
,CTE.INTERIM_START_DATE
,CTE.INTERIM_END_DATE
,CAST( DATEDIFF( DAY, CTE.INTERIM_START_DATE, CTE.INTERIM_END_DATE ) + 1 AS FLOAT ) AS 'MNTH_DAYS'
,CAST( DATEDIFF( DAY, CTE.STARTDATE, CTE.ENDDATE ) + 1 AS FLOAT ) AS 'TTL_DAYS'
,CAST( CTE.DURATION AS FLOAT ) AS 'DURATION'
FROM
CTE
)
SELECT
CTE2.SOURCE_ID AS 'Id'
,MONTH( CTE2.INTERIM_START_DATE ) AS 'Month'
,ROUND( CTE2.MNTH_DAYS/CTE2.TTL_DAYS * CTE2.DURATION, 0 ) AS 'HoursPerMonth'
FROM
CTE2
ORDER BY
CTE2.SOURCE_ID
,CTE2.INTERIM_END_DATE
;
My results agree with Mr. Cappelletti's, not the OP's. Perhaps some tweaking regarding the definition of a "Day" is needed. I don't know.
If time between start and end date is large (more than 100 months) you may want to specify OPTION (MAXRECURSION 0) at the end.
I'm trying hard to extract the data in the format I need, but unsuccessful til now.
I have the following table
id_ticket, date_ticket, office_ticket, status_ticket
I need the query to return me, for EVERY MONTH, and always for the same OFFICE:
the number of tickets (COUNT) with any status
the number of tickets (COUNT) with status = 5
the number of tickets (COUNT) with status = 6
Month
Year
The query I made to return ONLY the total amount of tickets with any status was this. It worked!
SELECT
COUNT (id_ticket) as TotalTicketsPerMonth,
'sYear' = YEAR (date_ticket),
'sMonth' = MONTH (date_ticket)
FROM crm_vw_Tickets
WHERE office_ticket = 1
GROUP BY
YEAR (date_ticket), MONTH (date_ticket)
ORDER BY sYear ASC, sMonth ASC
Returning the total amount of ticket with status=5
SELECT
COUNT (id_ticket) as TotalTicketsPerMonth,
'sYear' = YEAR (date_ticket),
'sMonth' = MONTH (date_ticket)
FROM crm_vw_Tickets
WHERE office_ticket = 1 AND status_ticket = 5
GROUP BY
YEAR (date_ticket), MONTH (date_ticket)
ORDER BY sYear ASC, sMonth ASC
But I need the return to be something like:
Year Month Total Status5 Status6
2018 1 15 5 3
2018 2 14 4 5
2018 3 19 2 8
Thank you for your help.
You are close. You can use a CASE Expression to get what you need:
SELECT
COUNT (id_ticket) as TotalTicketsPerMonth,
SUM(CASE WHEN status_ticket = 5 THEN 1 END) as Status5,
SUM(CASE WHEN status_ticket = 6 THEN 1 END) as Status6,
'sYear' = YEAR (date_ticket),
'sMonth' = MONTH (date_ticket)
FROM crm_vw_Tickets
WHERE office_ticket = 1
GROUP BY YEAR (date_ticket), MONTH (date_ticket)
ORDER BY sYear ASC, sMonth ASC
The following code builds off JNevill's answer to include summary rows for "missing" months, i.e. those with no tickets, as well as months with tickets. The basic idea is to create a table of all of the months from the first to the last ticket, outer join the ticket data with the months and then summarize the data. (Tally table, numbers table and calendar table are more or less applicable terms.)
It is a Common Table Expression (CTE) that contains several queries that work step-by-step toward the result. You can see the results of the intermediate steps by replacing the final select statement with one of the ones commented out above it.
-- Sample data.
declare #crm_vw_Tickets as Table ( id_ticket Int Identity, date_ticket Date, office_ticket Int, status_ticket Int );
insert into #crm_vw_Tickets ( date_ticket, office_ticket, status_ticket ) values
( '20190305', 1, 6 ), -- Shrove Tuesday.
( '20190501', 1, 5 ), -- May Day.
( '20190525', 1, 5 ); -- Towel Day.
select * from #crm_vw_Tickets;
-- Summarize the data.
with
-- Get the minimum and maximum ticket dates for office_ticket 1.
Limits as (
select Min( date_ticket ) as MinDateTicket, Max( date_ticket ) as MaxDateTicket
from #crm_vw_Tickets
where office_ticket = 1 ),
-- 0 to 9.
Ten ( Number ) as ( select * from ( values (0), (1), (2), (3), (4), (5), (6), (7), (8), (9) ) as Digits( Number ) ),
-- 100 rows.
TenUp2 ( Number ) as ( select 42 from Ten as L cross join Ten as R ),
-- 10000 rows. We'll assume that 10,000 months should cover the reporting range.
TenUp4 ( Number ) as ( select 42 from TenUp2 as L cross join TenUp2 as R ),
-- 1 to the number of months to summarize.
Numbers ( Number ) as ( select top ( select DateDiff( month, MinDateTicket, MaxDateTicket ) + 1 from Limits ) Row_Number() over ( order by ( select NULL ) ) from TenUp4 ),
-- Starting date of each month to summarize.
Months as (
select DateAdd( month, N.Number - 1, DateAdd( day, 1 - Day( L.MinDateTicket ), L.MinDateTicket ) ) as StartOfMonth
from Limits as L cross join
Numbers as N ),
-- All tickets assigned to the appropriate month and a row with NULL ticket data
-- for each month without tickets.
MonthsAndTickets as (
select M.StartOfMonth, T.*
from Months as M left outer join
#crm_vw_Tickets as T on M.StartOfMonth <= T.date_ticket and T.date_ticket < DateAdd( month, 1, M.StartOfMonth ) )
-- Use one of the following select statements to see the intermediate or final results:
--select * from Limits;
--select * from Ten;
--select * from TenUp2;
--select * from TenUp4;
--select * from Numbers;
--select * from Months;
--select * from MonthsAndTickets;
select Year( StartOfMonth ) as SummaryYear, Month( StartOfMonth ) as SummaryMonth,
Count( id_ticket ) as TotalTickets,
Coalesce( Sum( case when status_ticket = 5 then 1 end ), 0 ) as Status5Tickets,
Coalesce( Sum( case when status_ticket = 6 then 1 end ), 0 ) as Status6Tickets
from MonthsAndTickets
where office_ticket = 1 or office_ticket is NULL -- Handle months with no tickets.
group by StartOfMonth
order by StartOfMonth;
Note that the final select uses Count( id_ticket ), Coalesce and an explicit check for NULL to produce appropriate output values (0) for months with no tickets.
Noob alert...
I have an example table as followed.
I am trying to create a column in SQL that shows the what percentage each customer had of size S per year.
So output should be something like:
(Correction: the customer C for 2019 Percentage should be 1)
Window functions will get you there.
DECLARE #TestData TABLE
(
[Customer] NVARCHAR(2)
, [CustomerYear] INT
, [CustomerCount] INT
, [CustomerSize] NVARCHAR(2)
);
INSERT INTO #TestData (
[Customer]
, [CustomerYear]
, [CustomerCount]
, [CustomerSize]
)
VALUES ( 'A', 2017, 1, 'S' )
, ( 'A', 2017, 1, 'S' )
, ( 'B', 2017, 1, 'S' )
, ( 'B', 2017, 1, 'S' )
, ( 'B', 2018, 1, 'S' )
, ( 'A', 2018, 1, 'S' )
, ( 'C', 2017, 1, 'S' )
, ( 'C', 2019, 1, 'S' );
SELECT DISTINCT [Customer]
, [CustomerYear]
, SUM([CustomerCount]) OVER ( PARTITION BY [Customer]
, [CustomerYear]
) AS [CustomerCount]
, SUM([CustomerCount]) OVER ( PARTITION BY [CustomerYear] ) AS [TotalCount]
, SUM([CustomerCount]) OVER ( PARTITION BY [Customer]
, [CustomerYear]
) * 1.0 / SUM([CustomerCount]) OVER ( PARTITION BY [CustomerYear] ) AS [CustomerPercentage]
FROM #TestData
ORDER BY [CustomerYear]
, [Customer];
Will give you
Customer CustomerYear CustomerCount TotalCount CustomerPercentage
-------- ------------ ------------- ----------- ---------------------------------------
A 2017 2 5 0.400000000000
B 2017 2 5 0.400000000000
C 2017 1 5 0.200000000000
A 2018 1 2 0.500000000000
B 2018 1 2 0.500000000000
C 2019 1 1 1.000000000000
Assuming there are no duplicate rows for a customer in a year, you can use window functions:
select t.*,
sum(count) over (partition by year) as year_cnt,
count * 1.0 / sum(count) over (partition by year) as ratio
from t;
Break it apart into tasks - that's probably the best rule to follow when it comes to SQL. So, I created a variable table #tmp which I populated with your sample data, and started out with this query:
select
customer,
year
from #tmp
where size = 'S'
group by customer, year
... this gets a row for each customer/year combo for 'S' entries.
Next, I want the total count for that customer/year combo:
select
customer,
year,
SUM(itemCount) as customerItemCount
from #tmp
where size = 'S'
group by customer, year
... now, how do we get the count for all customers for a specific year? We need a subquery - and we need that subquery to reference the year from the main query.
select
customer,
year,
SUM(itemCount) as customerItemCount,
(select SUM(itemCount) from #tmp t2 where year=t.year) as FullTotalForYear
from #tmp t
where size = 'S'
GROUP BY customer, year
... that make sense? That new line in the ()'s is a subquery - and it's hitting the table again - but this time, its just getting a SUM() over the particular year that matches the main table.
Finally, we just need to divide one of those columns by the other to get the actual percent (making sure not to make it int/int - which will always be an int), and we'll have our final answer:
select
customer,
year,
cast(SUM(itemCount) as float) /
(select SUM(itemCount) from #tmp t2 where year=t.year)
as PercentageOfYear
from #tmp t
where size = 'S'
GROUP BY customer, year
Make sense?
With a join of 2 groupings:
the 1st by size, year, customer and
the 2nd by size, year.
select
t.customer, t.year, t.count, t.size,
ty.total_count, 1.0 * t.count / ty.total_count percentage
from (
select t.customer, t.year, sum(t.count) count, t.size
from tablename t
group by t.size, t.year, t.customer
) t inner join (
select t.year, sum(t.count) total_count, t.size
from tablename t
group by t.size, t.year
) ty
on ty.size = t.size and ty.year = t.year
order by t.size, t.year, t.customer;
See the demo
I need to select the last 12 months. As you can see on the picture, May occurs two times.
But I only want it to occur once. And it needs to be the newest one.
Plus, the table should stay in this structure, with the latest month on the bottom.
And this is the query:
SELECT Monat2,
Monat,
CASE WHEN NPLAY_IND = '4P'
THEN 'QuadruplePlay'
WHEN NPLAY_IND = '3P'
THEN 'TriplePlay'
WHEN NPLAY_IND = '2P'
THEN 'DoublePlay'
WHEN NPLAY_IND = '1P'
THEN 'SinglePlay'
END AS Series,
Anzahl as Cnt
FROM T_Play_n
where NPLAY_IND != '0P'
order by Series asc ,Monat
This is the new query
SELECT sub.Monat2,sub.Monat,
CASE WHEN NPLAY_IND = '4P'
THEN 'QuadruplePlay'
WHEN NPLAY_IND = '3P'
THEN 'TriplePlay'
WHEN NPLAY_IND = '2P'
THEN 'DoublePlay'
WHEN NPLAY_IND = '1P'
THEN 'SinglePlay'
END
AS Series, Anzahl as Cnt FROM (SELECT ROW_NUMBER () OVER (PARTITION BY Monat2 ORDER BY Monat DESC)rn,
Monat2,
Monat,
Anzahl,
NPLAY_IND
FROM T_Play_n)sub
where sub.rn = 1
It does only show the months once but it doesn't do that for every Series.
So with every Play it should have 12 months.
In Oracle and SQL-Server you can use ROW_NUMBER.
name = month name and num = month number:
SELECT sub.name, sub.num
FROM (SELECT ROW_NUMBER () OVER (PARTITION BY name ORDER BY num DESC) rn,
name,
num
FROM tab) sub
WHERE sub.rn = 1
ORDER BY num DESC;
WITH R(N) AS
(
SELECT 0
UNION ALL
SELECT N+1
FROM R
WHERE N < 12
)
SELECT LEFT(DATENAME(MONTH,DATEADD(MONTH,-N,GETDATE())),3) AS [month]
FROM R
The With R(N) is a Common Table Expression.The R is the name of the result set (or table) that you are generating. And the N is the month number.
In SQL Server you can do It in following:
SELECT DateMonth, DateWithMonth -- Specify columns to select
FROM Tbl -- Source table
WHERE CAST(CAST(DateWithMonth AS INT) * 100 + 1 AS VARCHAR(20)) >= DATEADD(MONTH, -12,GETDATE()) -- Condition to return data for last 12 months
GROUP BY DateMonth, DateWithMonth -- Uniqueness
ORDER BY DateWithMonth -- Sorting to get latest records on the bottom
So it sounds like you want to select rows that contain the last occurrence of months. Something like this should work:
select * from [table_name]
where id in (select max(id) from [table_name] group by [month_column])
The last select in the brackets will get a list of id's for the last occurrence of each month. If the year+month column you have shown is not in descending order already, you might want to max this column instead.
You can use something like this(the table dbo.Nums contains int values from 0 to 11)
SELECT DATEADD(MONTH, DATEDIFF(MONTH, '19991201', CURRENT_TIMESTAMP) + n - 12, '19991201'),
DATENAME(MONTH,DateAdd(Month, DATEDIFF(month, '19991201', CURRENT_TIMESTAMP) + n - 12, '19991201'))
FROM dbo.Nums
I suggest to use a group by for the month name, and a max function for the numeric component. If is not numeric, use to_number().
In the following scenario :For id = 2 the run date starts from 2015-01-30 to 2014-11-28 as per the database records since i am searching for last 3 months record and then trying to get the difference between x month - latest data point value which is 11(VALUE AT 2015-01-30) -5 (VALUE AT 2014-11-28)= 6 for id =2 . But i want to modify my query such that it starts from 1 month back from today and takes the first date of that month(i.e 1 feb 2015 :1st date of every month) even though the first data point in the database records starts from 2015-01-30 the actual search should start from 1feb 2015 in which the difference should be 8 - 0 = 8 rather than 6 . How can tweak my query to do this
The goal is to find the deviation between two values :the value at x month back - the latest value .So for id 2 since there is no feb data available in the datatable (whic represents the temp table) the latest value becomes 0 and the x month back value becomes 8 ( value in dec-2014) = 8- 0 = 8
CREATE TABLE #t ( ID INT, V FLOAT, D DATE )
INSERT INTO #t
VALUES ( 1, 1.2, '2014-01-01' ),
( 1, 1.33, '2014-01-02' ),
( 1, 1.33, '2014-01-03' ),
( 2, 7, '2014-10-31' ),
( 2, 5, '2014-11-28' ),
( 2, 8, '2014-12-31' ),
( 2, 11, '2015-01-30' );
DECLARE #DealClauseString NVARCHAR(MAX)
SET #DealClauseString = ';WITH filter
AS ( SELECT ID ,
D ,
V ,
ROW_NUMBER() OVER ( PARTITION BY ID ORDER BY D DESC ) AS RN
FROM #t
),
cte
AS ( SELECT ID ,
D ,
V ,
MIN(D) OVER ( PARTITION BY ID ORDER BY D ROWS
BETWEEN UNBOUNDED PRECEDING
AND UNBOUNDED FOLLOWING ) AS Min ,
MAX(D) OVER ( PARTITION BY ID ORDER BY D ROWS
BETWEEN UNBOUNDED PRECEDING AND
UNBOUNDED FOLLOWING ) AS Max
FROM filter
WHERE RN <= 2
)
SELECT c1.ID ,
c2.V - c1.V AS V
FROM cte c1
JOIN cte c2 ON c1.ID = c2.ID AND c1.D < c2.D
WHERE ( c1.D = c1.MIN OR c1.D = c1.MAX )
AND ( c2.D = c2.MIN OR c2.D = c2.MAX ) and c2.V - c1.V between 0.3 and 6 '
EXEC (#DealClauseString)
drop table #t
Any help would be really helfull.Pleasse let me know if you have any queries