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 How to get the result with partition

Author  Topic 

SCHEMA
Posting Yak Master

192 Posts
Posted - 2008-07-29 : 10:55:37
Suppose I have DateMM column and it has:

200601 --- left(DateMM,4) is year
200602 --- right(DateMM,2) is quarter where (01,02,03)=First quart
200603 (04,05,06)=2nd quarter
200604 so on..
200605
200606
200607
200608
200609
200610
200611
200612
so on...

How can get 2 column with cross join like this:

Year Quarter
2006 Ist
2006 2nd
2006 3rd
2006 4th
2007 Ist

So i want to make (01,02,03) as First quarter. How can i do this? Thanks.
Can i use row_number by partition on this one?

SCHEMA
Posting Yak Master

192 Posts
Posted - 2008-07-29 : 11:03:56
This is what i tried:

Select distinct left(DateMM,4) as YearOf From table Where DateMM Between '200601'and '200804') SP
cross join (select Case right (DateMM,2)
When '01' then '1st Qtr'
When '02' then '1st Qtr'
When '03' then '1st Qtr'
When '04' then '2nd Qtr'
When '05' then '2nd Qtr'
When '06' then '2nd Qtr'
When '07' then '3rd Qtr'
When '08' then '3rd Qtr'
When '09' then '3rd Qtr'
When '10' then '4th Qtr'
When '11' then '4th Qtr'
When '12' then '4th Qtr'
End as QuarterOf from table Where DateMM Between '200601' and '200804' )

but getting more rows. I should be getting 40 rows but i am getting 48 rows.
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visakh16
Very Important crosS Applying yaK Herder

52326 Posts
Posted - 2008-07-29 : 11:09:23
quote:
Originally posted by SCHEMA

Suppose I have DateMM column and it has:

200601 --- left(DateMM,4) is year
200602 --- right(DateMM,2) is quarter where (01,02,03)=First quart
200603 (04,05,06)=2nd quarter
200604 so on..
200605
200606
200607
200608
200609
200610
200611
200612
so on...

How can get 2 column with cross join like this:

Year Quarter
2006 Ist
2006 2nd
2006 3rd
2006 4th
2007 Ist

So i want to make (01,02,03) as First quarter. How can i do this? Thanks.
Can i use row_number by partition on this one?

SELECT LEFT(DateMM,4) AS Year,
CASE  
WHEN right(DateMM,2) IN( '01','02','03') THEN '1st'
WHEN right(DateMM,2) IN( '04','05','06') THEN '2nd'
WHEN right(DateMM,2) IN( '07','08','09') THEN '3rd'
WHEN right(DateMM,2) IN( '10','11','12') THEN '4th'
END AS Quarter
FROM table
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SCHEMA
Posting Yak Master

192 Posts
Posted - 2008-07-29 : 11:43:46
Didn't get result:

From 200601 to 200804 there are 10 quarters so i should get

Year Quarterof
2006 Ist
2006 2nd
2006 3rd
2006 4th
2007 Ist
...
2008 2nd (So it has to stop in 2nd quarter for 2008)
Also no duplicates . Thanks

How can i do it?
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visakh16
Very Important crosS Applying yaK Herder

52326 Posts
Posted - 2008-07-29 : 11:56:26
quote:
Originally posted by SCHEMA

Didn't get result:

From 200601 to 200804 there are 10 quarters so i should get

Year Quarterof
2006 Ist
2006 2nd
2006 3rd
2006 4th
2007 Ist
...
2008 2nd (So it has to stop in 2nd quarter for 2008)
Also no duplicates . Thanks

How can i do it?

why what was the error?
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SCHEMA
Posting Yak Master

192 Posts
Posted - 2008-07-30 : 09:47:16
DECLARE @Year CHAR(4)
DECLARE @Quarter CHAR(1)
DECLARE @QuarterEnd CHAR(6)
DECLARE @PrevQuartersEnd CHAR(6)
DECLARE @PrevQuartersStart CHAR(6)

SET @QuarterEnd = (SELECT TOP 1 @Year + [Month] FROM QuarterLookup WHERE [Quarter] = @Quarter ORDER BY [Month] DESC)
SET @PrevQuartersEnd = (SELECT database.dbo.PreviousMonth(@QuarterStart))
SET @PrevQuartersStart = (SELECT database.dbo.GetMonth(@PrevQuartersEnd, -27))
--These variables are working great and giving me what i want.It will give 10 Quarters.

How can i exclude year and quarter ?
For Ex:
I choose : year: 2008
Quarter:2
Then it should give starting from 200601(@PrevQuartersStart ) to
200802(@QuarterEnd)

How can include variables in my cross join so only 10 quarters are retrieved ? Thanks.
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visakh16
Very Important crosS Applying yaK Herder

52326 Posts
Posted - 2008-07-30 : 09:50:53
quote:
Originally posted by SCHEMA

DECLARE @Year CHAR(4)
DECLARE @Quarter CHAR(1)
DECLARE @QuarterEnd CHAR(6)
DECLARE @PrevQuartersEnd CHAR(6)
DECLARE @PrevQuartersStart CHAR(6)

SET @QuarterEnd = (SELECT TOP 1 @Year + [Month] FROM QuarterLookup WHERE [Quarter] = @Quarter ORDER BY [Month] DESC)
SET @PrevQuartersEnd = (SELECT database.dbo.PreviousMonth(@QuarterStart))
SET @PrevQuartersStart = (SELECT database.dbo.GetMonth(@PrevQuartersEnd, -27))
--These variables are working great and giving me what i want.It will give 10 Quarters.

How can i exclude year and quarter ?
For Ex:
I choose : year: 2008
Quarter:2
Then it should give starting from 200601(@PrevQuartersStart ) to
200802(@QuarterEnd)

How can include variables in my cross join so only 10 quarters are retrieved ? Thanks.


SELECT *
FROM
(
SELECT DateMM,LEFT(DateMM,4) AS Year,
CASE  
WHEN right(DateMM,2) IN( '01','02','03') THEN '1st'
WHEN right(DateMM,2) IN( '04','05','06') THEN '2nd'
WHEN right(DateMM,2) IN( '07','08','09') THEN '3rd'
WHEN right(DateMM,2) IN( '10','11','12') THEN '4th'
END AS Quarter
FROM table)t
where t.DateMM>= @PrevQuartersStart 
AND  t.DateMM<=@QuarterEnd
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SCHEMA
Posting Yak Master

192 Posts
Posted - 2008-07-30 : 10:27:51
I am not getting result when i apply in cross join. How can i do this in above cross join?
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visakh16
Very Important crosS Applying yaK Herder

52326 Posts
Posted - 2008-07-30 : 10:44:33
quote:
Originally posted by SCHEMA

I am not getting result when i apply in cross join. How can i do this in above cross join?

you dont require a cross join. didnt understand why you need it?
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SCHEMA
Posting Yak Master

192 Posts
Posted - 2008-07-30 : 11:03:51
quote:
Originally posted by visakh16

quote:
Originally posted by SCHEMA

I am not getting result when i apply in cross join. How can i do this in above cross join?

you dont require a cross join. didnt understand why you need it?


I don't need DateMM

If i choose 2008(year) and quarter(2).it should go back 10 quarters back (which variables does)

The result should be:
Yearof Quarterof
2006 Ist
2006 2nd
2006 3rd
2006 4th
2007 Ist
2007 2nd
2007 3rd
2007 4th
2008 Ist
2008 2nd

Thanks. I am stressing for this one to work.
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SCHEMA
Posting Yak Master

192 Posts
Posted - 2008-07-30 : 11:28:13
Anyone !!! Help
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Lamprey
Master Smack Fu Yak Hacker

4614 Posts
Posted - 2008-07-30 : 11:56:22
Do you understand what Visakh's solution is doing? We want you to learn so you can become better at SQL, but you seem to just want some stranger to do your woek for you. This is very easy for those of us that do SQL all day long, so ask questions and try to understand and learn instead of just getting an answer that you don't even understand. In the lng run you are going to be much better off. Especially, when someone comes and asks you to change your code.

That having been said, here is one solution:
DECLARE @Yak TABLE (DateMM VARCHAR(6))

INSERT @Yak
SELECT '200601'
UNION ALL SELECT '200602'
UNION ALL SELECT '200603'
UNION ALL SELECT '200604'
UNION ALL SELECT '200605'
UNION ALL SELECT '200606'
UNION ALL SELECT '200607'
UNION ALL SELECT '200608'
UNION ALL SELECT '200609'
UNION ALL SELECT '200610'
UNION ALL SELECT '200611'
UNION ALL SELECT '200612'
UNION ALL SELECT '200701'
UNION ALL SELECT '200702'
UNION ALL SELECT '200703'
UNION ALL SELECT '200704'
UNION ALL SELECT '200705'
UNION ALL SELECT '200706'
UNION ALL SELECT '200707'
UNION ALL SELECT '200708'
UNION ALL SELECT '200709'
UNION ALL SELECT '200710'
UNION ALL SELECT '200711'
UNION ALL SELECT '200712'
UNION ALL SELECT '200801'
UNION ALL SELECT '200802'
UNION ALL SELECT '200803'
UNION ALL SELECT '200804'
UNION ALL SELECT '200805'
UNION ALL SELECT '200806'
UNION ALL SELECT '200807'
UNION ALL SELECT '200808'
UNION ALL SELECT '200809'
UNION ALL SELECT '200810'
UNION ALL SELECT '200811'
UNION ALL SELECT '200812'


DECLARE @PrevQuartersEnd CHAR(6)
DECLARE @PrevQuartersStart CHAR(6)

SET @PrevQuartersEnd = '200802'
SET @PrevQuartersStart = '200601'

SELECT DISTINCT
	Year,
	Quarter
FROM
	(
		SELECT 
			LEFT(DateMM,4) AS Year,
			CASE  
				WHEN right(DateMM,2) IN( '01','02','03') THEN '1st'
				WHEN right(DateMM,2) IN( '04','05','06') THEN '2nd'
				WHEN right(DateMM,2) IN( '07','08','09') THEN '3rd'
				WHEN right(DateMM,2) IN( '10','11','12') THEN '4th'
			END AS Quarter,
			LEFT(DateMM,4) + 
			CASE  
				WHEN right(DateMM,2) IN( '01','02','03') THEN '01'
				WHEN right(DateMM,2) IN( '04','05','06') THEN '02'
				WHEN right(DateMM,2) IN( '07','08','09') THEN '03'
				WHEN right(DateMM,2) IN( '10','11','12') THEN '04'
			END AS YearQuarter
		FROM 
			@Yak
	) AS T
WHERE
	T.YearQuarter BETWEEN @PrevQuartersStart AND @PrevQuartersEnd
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SCHEMA
Posting Yak Master

192 Posts
Posted - 2008-07-30 : 14:27:25
Lamprey, Still not working.

If I choose SET @PrevQuartersStart = '200602' then it will start from 2nd quarter coz 01,02,03 is in Ist qtr
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Lamprey
Master Smack Fu Yak Hacker

4614 Posts
Posted - 2008-07-30 : 18:01:29
I didn't realize you wanted the top 10:
DECLARE @PrevQuartersEnd CHAR(6)
SET @PrevQuartersEnd = '200802'

SELECT DISTINCT TOP 10 
	Year,
	Quarter
FROM
	(
		SELECT 
			LEFT(DateMM,4) AS Year,
			CASE  
				WHEN right(DateMM,2) IN( '01','02','03') THEN '1st'
				WHEN right(DateMM,2) IN( '04','05','06') THEN '2nd'
				WHEN right(DateMM,2) IN( '07','08','09') THEN '3rd'
				WHEN right(DateMM,2) IN( '10','11','12') THEN '4th'
			END AS Quarter,
			LEFT(DateMM,4) + 
			CASE  
				WHEN right(DateMM,2) IN( '01','02','03') THEN '01'
				WHEN right(DateMM,2) IN( '04','05','06') THEN '02'
				WHEN right(DateMM,2) IN( '07','08','09') THEN '03'
				WHEN right(DateMM,2) IN( '10','11','12') THEN '04'
			END AS YearQuarter
		FROM 
			@Yak
	) AS T
WHERE
	T.YearQuarter <= @PrevQuartersEnd
ORDER BY
	Year,
	Quarter
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