how to calculate no.of .months billed customer

Question

how to calculate no.of .months billed customer

raghuldrag

Hall of Fame

Points: 3160
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December 27, 2013 at 6:39 am

#281518

Dear Friends,
my table looks like
Actual Table looks
Custmoer NOproduct name billed date
50 Biscuit 1/4/2013
50 Milk 10/4/2013
50 Milk 11/4/2013
50 Curd 15/4/2013
50 Biscuit 14/4/2013
50 Milk 16/4/2013
50 Curd 21/4/2013
50 Biscuit 19/4/2013
50 Curd 26/4/2013
50 Milk 28/4/2013
50 Biscuit 30/4/2013
40 Biscuit 1/4/2013
40 Milk 10/4/2013
40 Milk 11/4/2013
40 Curd 15/4/2013
40 Biscuit 14/4/2013
40 Milk 6/4/2013
40 Curd 21/4/2013
Expecting Output
Custmoer NOproduct name billed date
50 Biscuit 5
50 Milk 4
50 curd 3
40 Biscuit 2
40 Milk 3
40 curd 2
the actual table is refers the product billed for month of customer .....
now my expecting output is
How many products i billed for each customer wise ?

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Ed Wagner SSC Guru Points: 287024 More actions · Answer 1

raghuldrag (12/27/2013)
Dear Friends,
my table looks like
Actual Table looks
Custmoer NOproduct name billed date
50 Biscuit 1/4/2013
50 Milk 10/4/2013
50 Milk 11/4/2013
50 Curd 15/4/2013
50 Biscuit 14/4/2013
50 Milk 16/4/2013
50 Curd 21/4/2013
50 Biscuit 19/4/2013
50 Curd 26/4/2013
50 Milk 28/4/2013
50 Biscuit 30/4/2013
40 Biscuit 1/4/2013
40 Milk 10/4/2013
40 Milk 11/4/2013
40 Curd 15/4/2013
40 Biscuit 14/4/2013
40 Milk 6/4/2013
40 Curd 21/4/2013
Expecting Output
Custmoer NOproduct name billed date
50 Biscuit 5
50 Milk 4
50 curd 3
40 Biscuit 2
40 Milk 3
40 curd 2
the actual table is refers the product billed for month of customer .....
now my expecting output is
How many products i billed for each customer wise ?

I'm not sure if I'm understanding your requirements clearly. If you want the customer number and the number of times they were billed, this should do it:

select customer, count(*)

from table_name

group by customer;

If you instead want the customer number and product and the number of times they were billed, try this:

select customer, product, count(*)

from table_name

group by customer;

If you want something different, please post DDL to create the table, code to populate some sample data and your expected output. See the second link in my signature for advice on how to ask questions for the best results.

Tally Tables - Performance Personified
String Splitting with True Performance
Best practices on how to ask questions

Lowell SSC Guru Points: 323504 More actions · Answer 2

I've got teh same answer ad Ed Wagner does, i just processed your post through a macro so i had some consumable data.

if you want solid help like that int he future, it's up to you to provide consumable data like this to help us generate tested code and answers.

SET DATEFORMAT DMY

;WITH MyCTE([Custmoer NO],[product name], [billed date ])

AS

(

SELECT convert(int,'50'),'Biscuit',convert(date,'1/4/2013') UNION ALL

SELECT '50','Milk','10/4/2013'UNION ALL

SELECT '50','Milk','11/4/2013'UNION ALL

SELECT '50','Curd','15/4/2013'UNION ALL

SELECT '50','Biscuit','14/4/2013'UNION ALL

SELECT '50','Milk','16/4/2013'UNION ALL

SELECT '50','Curd','21/4/2013'UNION ALL

SELECT '50','Biscuit','19/4/2013'UNION ALL

SELECT '50','Curd','26/4/2013'UNION ALL

SELECT '50','Milk','28/4/2013'UNION ALL

SELECT '50','Biscuit','30/4/2013'UNION ALL

SELECT '40','Biscuit','1/4/2013'UNION ALL

SELECT '40','Milk','10/4/2013'UNION ALL

SELECT '40','Milk','11/4/2013'UNION ALL

SELECT '40','Curd','15/4/2013'UNION ALL

SELECT '40','Biscuit','14/4/2013'UNION ALL

SELECT '40','Milk','6/4/2013'UNION ALL

SELECT '40','Curd','21/4/2013'

)

SELECT [Custmoer NO],[product name],COUNT(*)

FROM MyCTE

GROUP BY [Custmoer NO],[product name]

order by [Custmoer NO] DESC,[product name];

Lowell

--help us help you! If you post a question, make sure you include a CREATE TABLE... statement and INSERT INTO... statement into that table to give the volunteers here representative data. with your description of the problem, we can provide a tested, verifiable solution to your question! asking the question the right way gets you a tested answer the fastest way possible!

raghuldrag Hall of Fame Points: 3160 More actions · Answer 3

hi friends,

thanks for giving the reply to me.

as my scenario is to calculate no.of. months in that table. (for example milk is billed on more than 3 times in april when i calculate as months means it ll '1' as the same i want to calculate a whole year how months that should be billed on that particular customer)

Actual Table looks

Custmoer NO product name billed date

50 Biscuit 1/4/2013

50 Milk 10/4/2013

50 Milk 11/4/2013

50 Curd 15/4/2013

50 Biscuit 14/4/2013

50 Milk 16/4/2013

50 Curd 21/4/2013

50 Biscuit 19/4/2013

50 Curd 26/4/2013

50 Milk 28/4/2013

50 Biscuit 30/4/2013

40 Biscuit 1/4/2013

40 Milk 10/4/2013

40 Milk 11/4/2013

40 Curd 15/4/2013

40 Biscuit 14/4/2013

40 Milk 6/4/2013

40 Curd 21/4/2013

Expecting Output

Custmoer NO product name billed date

50 Biscuit 1

50 Milk 1

50 curd 1

40 Biscuit 1

40 Milk 1

40 curd 1

the actual table is refers the product billed for month of customer .....

now my expecting output is

How many products i billed for each customer wise ?

SatishChandra_SQL Old Hand Points: 316 More actions · Answer 4

Hi Rahul,

Please use the below query to get the no.of unique products purchased by Customer

SELECT [Custmoer NO],COUNT(DISTINCT [product name]) AS NoOfProductsPerCustomer

FROM @Customer_Bill_Table

GROUP BY [Custmoer NO]

Let me know if this is not clear.

Thanks, Satish

SatishChandra_SQL Old Hand Points: 316 More actions · Answer 5

same query - with detailed data and output.

Run the below and confirm if you are looking for the something similar or not.

DECLARE @Customer_Bill_Table TABLE

(

[Custmoer NO] VARCHAR(3)

, [product name] VARCHAR(15)

, [billed date ] VARCHAR(15)

)

INSERT INTO @Customer_Bill_Table

SELECT '50','Milk','10/4/2013'UNION ALL

SELECT '50','Milk','11/4/2013'UNION ALL

SELECT '50','Curd','15/4/2013'UNION ALL

SELECT '50','Biscuit','14/4/2013'UNION ALL

SELECT '50','Milk','16/4/2013'UNION ALL

SELECT '50','Curd','21/4/2013'UNION ALL

SELECT '50','Biscuit','19/4/2013'UNION ALL

SELECT '50','Curd','26/4/2013'UNION ALL

SELECT '50','Milk','28/4/2013'UNION ALL

SELECT '50','Biscuit','30/4/2013'UNION ALL

SELECT '40','Biscuit','1/4/2013'UNION ALL

SELECT '40','Milk','10/4/2013'UNION ALL

SELECT '40','Milk','11/4/2013'UNION ALL

SELECT '40','Curd','15/4/2013'UNION ALL

SELECT '40','Biscuit','14/4/2013'UNION ALL

SELECT '40','Milk','6/4/2013'UNION ALL

SELECT '40','Curd','21/4/2013'

SELECT [Custmoer NO],COUNT(DISTINCT [product name]) AS NoOfProductsPerCustomer

FROM @Customer_Bill_Table

GROUP BY [Custmoer NO]

Thanks, Satish.

sathishmcc SSC-Addicted Points: 424 More actions · Answer 6

Hi,

This code may help you

create table Customer_Bill_Table

(

[CustmoerNO] VARCHAR(3)

, [productname] VARCHAR(15)

, [billeddate ] VARCHAR(15)

)

INSERT INTO Customer_Bill_Table([CustmoerNO],[productname],[billeddate ])

SELECT '50','Milk','10/4/2013' UNION ALL

SELECT '50','Milk','11/4/2013'UNION ALL

SELECT '50','Curd','15/4/2013'UNION ALL

SELECT '50','Biscuit','14/4/2013'UNION ALL

SELECT '50','Biscuit','16/4/2013'UNION ALL

SELECT '40','Biscuit','1/4/2013'UNION ALL

SELECT '40','Milk','10/4/2013'UNION ALL

SELECT '40','Milk','11/4/2013'UNION ALL

SELECT '40','Curd','15/4/2013'UNION ALL

SELECT '40','Biscuit','14/4/2013'UNION ALL

SELECT '40','Milk','6/4/2013'UNION ALL

SELECT '40','Curd','21/4/2013'

select * from Customer_Bill_Table

select [CustmoerNO],[productname],count([billeddate]) As Nobillspermonth

from Customer_Bill_Table group by [CustmoerNO],[productname]

ChrisM@Work SSC Guru Points: 186127 More actions · Answer 7

Lowell (12/27/2013)
I've got teh same answer ad Ed Wagner does, i just processed your post through a macro so i had some consumable data.
if you want solid help like that int he future, it's up to you to provide consumable data like this to help us generate tested code and answers.
SET DATEFORMAT DMY
;WITH MyCTE([Custmoer NO],[product name], [billed date ])
AS
(
SELECT convert(int,'50'),'Biscuit',convert(date,'1/4/2013') UNION ALL
SELECT '50','Milk','10/4/2013'UNION ALL
SELECT '50','Milk','11/4/2013'UNION ALL
SELECT '50','Curd','15/4/2013'UNION ALL
SELECT '50','Biscuit','14/4/2013'UNION ALL
SELECT '50','Milk','16/4/2013'UNION ALL
SELECT '50','Curd','21/4/2013'UNION ALL
SELECT '50','Biscuit','19/4/2013'UNION ALL
SELECT '50','Curd','26/4/2013'UNION ALL
SELECT '50','Milk','28/4/2013'UNION ALL
SELECT '50','Biscuit','30/4/2013'UNION ALL
SELECT '40','Biscuit','1/4/2013'UNION ALL
SELECT '40','Milk','10/4/2013'UNION ALL
SELECT '40','Milk','11/4/2013'UNION ALL
SELECT '40','Curd','15/4/2013'UNION ALL
SELECT '40','Biscuit','14/4/2013'UNION ALL
SELECT '40','Milk','6/4/2013'UNION ALL
SELECT '40','Curd','21/4/2013'
)
SELECT [Custmoer NO],[product name],COUNT(*)
FROM MyCTE
GROUP BY [Custmoer NO],[product name]
order by [Custmoer NO] DESC,[product name];

Readily consumable sample data is always recommended - it allows folks to commence work on your problem immediately and helps to define the problem parameters. In this case, where there's a severe language issue, it's more important than usual. Please provide sufficient sample data and required output to help your verbal description.

Reading between the lines and with regular consultation of the good ol' crystal ball, I think you are looking for "the count of months in which a product was sold to a customer" - though I might well be wrong. Here's a simple and inefficient query to do that;

SET DATEFORMAT DMY

;WITH SampleData ([Custmoer NO],[product name], [billed date ]) AS (

SELECT convert(int,'50'),'Biscuit',convert(date,'1/4/2013') UNION ALL

SELECT '50','Milk','10/4/2013' UNION ALL

SELECT '50','Milk','11/4/2013' UNION ALL

SELECT '50','Curd','15/4/2013' UNION ALL

SELECT '50','Biscuit','14/4/2013' UNION ALL

SELECT '50','Milk','16/4/2013' UNION ALL

SELECT '50','Curd','21/4/2013' UNION ALL

SELECT '50','Biscuit','19/4/2013' UNION ALL

SELECT '50','Curd','26/4/2013' UNION ALL

SELECT '50','Milk','28/4/2013' UNION ALL

SELECT '50','Biscuit','30/4/2013' UNION ALL

SELECT '40','Biscuit','1/4/2013' UNION ALL

SELECT '40','Milk','10/4/2013' UNION ALL

SELECT '40','Milk','11/4/2013' UNION ALL

SELECT '40','Milk','11/3/2013' UNION ALL -- extra row

SELECT '40','Curd','15/4/2013' UNION ALL

SELECT '40','Biscuit','14/4/2013' UNION ALL

SELECT '40','Milk','6/4/2013' UNION ALL

SELECT '40','Curd','21/4/2013'

)

-- Count the number of months in which each product was sold to each customer:

SELECT [Custmoer NO], [product name], MonthCount = COUNT(DISTINCT MONTH([billed date ]))

FROM SampleData

GROUP BY [Custmoer NO],[product name]

ORDER BY [Custmoer NO],[product name]

^{“Write the query the simplest way. If through testing it becomes clear that the performance is inadequate, consider alternative query forms.” - Gail Shaw}

For fast, accurate and documented assistance in answering your questions, please read this article.
Understanding and using APPLY, (I) and (II) Paul White
Hidden RBAR: Triangular Joins / The "Numbers" or "Tally" Table: What it is and how it replaces a loop Jeff Moden

raghuldrag Hall of Fame Points: 3160 More actions · Answer 8

here i can such example

create table estr

(

custo int,

product varchar(20),

val int,

billed_date datetime

)

insert into estr(custo,product,billed_date,value) values('10','Milk','2013-04-11','2000')

insert into estr(custo,product,billed_date,value) values('10','Milk','2013-04-21','500')

insert into estr(custo,product,billed_date,value) values('10','Milk','2013-05-05','100')

insert into estr(custo,product,billed_date,value) values('10','Milk','2013-05-11','2000')

insert into estr(custo,product,billed_date,value) values('10','fruits','2013-05-11','500')

insert into estr(custo,product,billed_date,value) values('30','fruits','2013-04-11','2000')

insert into estr(custo,product,billed_date,value) values('30','fruits','2013-05-11','1000')

My expecting output

custo product value no.of.mon(bil_months)

10 milk 4600 2

10 fruits 500 1

30 fruits 3000 2

above example custo=10 milk has billed various date of april,may but when i count the month ll show only 2

how to do that?

ChrisM@Work SSC Guru Points: 186127 More actions · Answer 9

raghuldrag (12/30/2013)
here i can such example
create table estr
(
custo int,
product varchar(20),
val int,
billed_date datetime
)
insert into estr(custo,product,billed_date,value) values('10','Milk','2013-04-11','2000')
insert into estr(custo,product,billed_date,value) values('10','Milk','2013-04-21','500')
insert into estr(custo,product,billed_date,value) values('10','Milk','2013-05-05','100')
insert into estr(custo,product,billed_date,value) values('10','Milk','2013-05-11','2000')
insert into estr(custo,product,billed_date,value) values('10','fruits','2013-05-11','500')
insert into estr(custo,product,billed_date,value) values('30','fruits','2013-04-11','2000')
insert into estr(custo,product,billed_date,value) values('30','fruits','2013-05-11','1000')
My expecting output
custo product value no.of.mon(bil_months)
10 milk 4600 2
10 fruits 500 1
30 fruits 3000 2
above example custo=10 milk has billed various date of april,may but when i count the month ll show only 2
how to do that?

Did you run my code?

^{“Write the query the simplest way. If through testing it becomes clear that the performance is inadequate, consider alternative query forms.” - Gail Shaw}

For fast, accurate and documented assistance in answering your questions, please read this article.
Understanding and using APPLY, (I) and (II) Paul White
Hidden RBAR: Triangular Joins / The "Numbers" or "Tally" Table: What it is and how it replaces a loop Jeff Moden

raghuldrag Hall of Fame Points: 3160 More actions · Answer 10

ChrisM@Work,

can't process ur code becz i ve more than 5 lakh data 's from year wise of '2007 to 2013' date wise bills

ChrisM@Work SSC Guru Points: 186127 More actions · Answer 11

raghuldrag (12/30/2013)
ChrisM@Work,
can't process ur code becz i ve more than 5 lakh data 's from year wise of '2007 to 2013' date wise bills

Then how are you - or we - supposed to know if any code will work for you or not?

If you want a query which works when run against your actual data then please provide a suitable sample data set and the required output. We don't need 5 lakh, 20 or 30 rows will probably be sufficient - but it must represent your real data.

Almost all problems posted here on ssc are trivial for the regular posters to solve in seconds. The difficult part is extracting the question, and sample data, from the OP. That's you.

^{“Write the query the simplest way. If through testing it becomes clear that the performance is inadequate, consider alternative query forms.” - Gail Shaw}

For fast, accurate and documented assistance in answering your questions, please read this article.
Understanding and using APPLY, (I) and (II) Paul White
Hidden RBAR: Triangular Joins / The "Numbers" or "Tally" Table: What it is and how it replaces a loop Jeff Moden

Lynn Pettis SSC Guru Points: 442467 More actions · Answer 12

Based on your last post (please note that I drop your table at the end to clean up my Sandbox database):

create table dbo.estr(

custo int,

product varchar(20),

val int,

billed_date datetime

);

insert into dbo.estr(custo,product,billed_date,val) values('10','Milk','2013-04-11','2000');

insert into dbo.estr(custo,product,billed_date,val) values('10','Milk','2013-04-21','500');

insert into dbo.estr(custo,product,billed_date,val) values('10','Milk','2013-05-05','100');

insert into dbo.estr(custo,product,billed_date,val) values('10','Milk','2013-05-11','2000');

insert into dbo.estr(custo,product,billed_date,val) values('10','fruits','2013-05-11','500');

insert into dbo.estr(custo,product,billed_date,val) values('30','fruits','2013-04-11','2000');

insert into dbo.estr(custo,product,billed_date,val) values('30','fruits','2013-05-11','1000');

go

select

custo,

product,

sum(val) Value,

count(distinct dateadd(month,datediff(month,0,billed_date),0)) MonthsBilled

from

dbo.estr

group by

custo,

product;

go

drop table dbo.estr;

go

Lynn Pettis SSC Guru Points: 442467 More actions · Answer 13

ChrisM@Work (12/30/2013)
Lowell (12/27/2013)
I've got teh same answer ad Ed Wagner does, i just processed your post through a macro so i had some consumable data.
if you want solid help like that int he future, it's up to you to provide consumable data like this to help us generate tested code and answers.
SET DATEFORMAT DMY
;WITH MyCTE([Custmoer NO],[product name], [billed date ])
AS
(
SELECT convert(int,'50'),'Biscuit',convert(date,'1/4/2013') UNION ALL
SELECT '50','Milk','10/4/2013'UNION ALL
SELECT '50','Milk','11/4/2013'UNION ALL
SELECT '50','Curd','15/4/2013'UNION ALL
SELECT '50','Biscuit','14/4/2013'UNION ALL
SELECT '50','Milk','16/4/2013'UNION ALL
SELECT '50','Curd','21/4/2013'UNION ALL
SELECT '50','Biscuit','19/4/2013'UNION ALL
SELECT '50','Curd','26/4/2013'UNION ALL
SELECT '50','Milk','28/4/2013'UNION ALL
SELECT '50','Biscuit','30/4/2013'UNION ALL
SELECT '40','Biscuit','1/4/2013'UNION ALL
SELECT '40','Milk','10/4/2013'UNION ALL
SELECT '40','Milk','11/4/2013'UNION ALL
SELECT '40','Curd','15/4/2013'UNION ALL
SELECT '40','Biscuit','14/4/2013'UNION ALL
SELECT '40','Milk','6/4/2013'UNION ALL
SELECT '40','Curd','21/4/2013'
)
SELECT [Custmoer NO],[product name],COUNT(*)
FROM MyCTE
GROUP BY [Custmoer NO],[product name]
order by [Custmoer NO] DESC,[product name];
Readily consumable sample data is always recommended - it allows folks to commence work on your problem immediately and helps to define the problem parameters. In this case, where there's a severe language issue, it's more important than usual. Please provide sufficient sample data and required output to help your verbal description.
Reading between the lines and with regular consultation of the good ol' crystal ball, I think you are looking for "the count of months in which a product was sold to a customer" - though I might well be wrong. Here's a simple and inefficient query to do that;
SET DATEFORMAT DMY
;WITH SampleData ([Custmoer NO],[product name], [billed date ]) AS (
SELECT convert(int,'50'),'Biscuit',convert(date,'1/4/2013') UNION ALL
SELECT '50','Milk','10/4/2013' UNION ALL
SELECT '50','Milk','11/4/2013' UNION ALL
SELECT '50','Curd','15/4/2013' UNION ALL
SELECT '50','Biscuit','14/4/2013' UNION ALL
SELECT '50','Milk','16/4/2013' UNION ALL
SELECT '50','Curd','21/4/2013' UNION ALL
SELECT '50','Biscuit','19/4/2013' UNION ALL
SELECT '50','Curd','26/4/2013' UNION ALL
SELECT '50','Milk','28/4/2013' UNION ALL
SELECT '50','Biscuit','30/4/2013' UNION ALL
SELECT '40','Biscuit','1/4/2013' UNION ALL
SELECT '40','Milk','10/4/2013' UNION ALL
SELECT '40','Milk','11/4/2013' UNION ALL
SELECT '40','Milk','11/3/2013' UNION ALL -- extra row
SELECT '40','Curd','15/4/2013' UNION ALL
SELECT '40','Biscuit','14/4/2013' UNION ALL
SELECT '40','Milk','6/4/2013' UNION ALL
SELECT '40','Curd','21/4/2013'
)
-- Count the number of months in which each product was sold to each customer:
SELECT [Custmoer NO], [product name], MonthCount = COUNT(DISTINCT MONTH([billed date ]))
FROM SampleData
GROUP BY [Custmoer NO],[product name]
ORDER BY [Custmoer NO],[product name]

Chris, you do know that if the data contains multiple years that the following may not provide the expected results:

MonthCount = COUNT(DISTINCT MONTH([billed date ]

ChrisM@Work SSC Guru Points: 186127 More actions · Answer 14

raghuldrag (12/31/2013)
i need the output like
for example 2013-04-01 is in table my expectation output is 04-2013 (extract month with year)......

Is '2013-04-01' a date datatype or a string datatype?

You are likely to find a format like yyyymm more convenient for sorting/aggregating. For a date datatype, use SELECT CONVERT(VARCHAR(6),GETDATE(),112)

^{“Write the query the simplest way. If through testing it becomes clear that the performance is inadequate, consider alternative query forms.” - Gail Shaw}

For fast, accurate and documented assistance in answering your questions, please read this article.
Understanding and using APPLY, (I) and (II) Paul White
Hidden RBAR: Triangular Joins / The "Numbers" or "Tally" Table: What it is and how it replaces a loop Jeff Moden