October 25, 2013 at 11:42 am
Hello, all. I have a query SELECT [Industry], [Naicstitle]
,[NumMatch] FROM [WDQI_DEED].[dbo].[q_Industry]
ORDER BY CASE WHEN Industry = '00' THEN Industry else null end DESC,
case WHEN Industry <> '00' THEN NumMatch ELSE NULL END DESC
; that produces the following results:
IndustryNaicstitleNumMatch
0All Industries1025
62Health Care and Social Assistance650
61Educational Services148
44Retail Trade61
54Professional and Technical Services46
92Public Administration23
52Finance and Insurance22
55Management of Companies and Enterprises17
72Accommodation and Food Services14
Sorry, I wish this looked more like a grid, but the the first column is just codes, and the third has the values.
I would like to add a fourth column with the percents of the top row (all industries value = 1,025). Note that because of suppressions, the rows 2-11 will not necessarily add up to the top row. In Excel, this is easy with the formula =C2/C$2 but the solution in SQL eludes me. Can anyone help? Thank you,
October 25, 2013 at 11:55 am
In order to help we will need a few things:
1. Sample DDL in the form of CREATE TABLE statements
2. Sample data in the form of INSERT INTO statements
3. Expected results based on the sample data
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October 25, 2013 at 11:57 am
You're looking for the FIRST_VALUE function.
DECLARE @testData TABLE
([Industry] VARCHAR(2)
,[Naicstitle] VARCHAR(50)
,[NumMatch] INT)
INSERT @testData (Industry,Naicstitle,NumMatch)
VALUES
('00', '', 1025)
,('62', '', 650)
,('61', '', 148)
,('44', '', 61)
,('54', '', 46)
,('92', '', 23)
,('52', '', 22)
,('55', '', 17)
,('72', '', 14)
SELECT
[Industry]
,[Naicstitle]
,[NumMatch]
,[NumMatch] / (1. * FIRST_VALUE([NumMatch]) OVER (PARTITION BY 1 ORDER BY Industry))
FROM
@testData
ORDER BY
CASE WHEN Industry = '00' THEN Industry
ELSE NULL
END DESC
,CASE WHEN Industry <> '00' THEN NumMatch
ELSE NULL
END DESC
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Jason L. SelburgOctober 25, 2013 at 12:02 pm
Thank you Jason. I had concocted a long CROSS APPLY method, but this FIRST_VALUE function is awesome. Thank you,
Amy
October 25, 2013 at 2:52 pm
Jason Selburg (10/25/2013)
You're looking for the FIRST_VALUE function.
DECLARE @testData TABLE
([Industry] VARCHAR(2)
,[Naicstitle] VARCHAR(50)
,[NumMatch] INT)
INSERT @testData (Industry,Naicstitle,NumMatch)
VALUES
('00', '', 1025)
,('62', '', 650)
,('61', '', 148)
,('44', '', 61)
,('54', '', 46)
,('92', '', 23)
,('52', '', 22)
,('55', '', 17)
,('72', '', 14)
SELECT
[Industry]
,[Naicstitle]
,[NumMatch]
,[NumMatch] / (1. * FIRST_VALUE([NumMatch]) OVER (PARTITION BY 1 ORDER BY Industry))
FROM
@testData
ORDER BY
CASE WHEN Industry = '00' THEN Industry
ELSE NULL
END DESC
,CASE WHEN Industry <> '00' THEN NumMatch
ELSE NULL
END DESC
I agree with you
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