Percent of number in top row

  • 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,

  • 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

    Please take a few minutes and read the first article in my signature for best practices when posting questions.

    _______________________________________________________________

    Need help? Help us help you.

    Read the article at http://www.sqlservercentral.com/articles/Best+Practices/61537/ for best practices on asking questions.

    Need to split a string? Try Jeff Modens splitter http://www.sqlservercentral.com/articles/Tally+Table/72993/.

    Cross Tabs and Pivots, Part 1 – Converting Rows to Columns - http://www.sqlservercentral.com/articles/T-SQL/63681/
    Cross Tabs and Pivots, Part 2 - Dynamic Cross Tabs - http://www.sqlservercentral.com/articles/Crosstab/65048/
    Understanding and Using APPLY (Part 1) - http://www.sqlservercentral.com/articles/APPLY/69953/
    Understanding and Using APPLY (Part 2) - http://www.sqlservercentral.com/articles/APPLY/69954/

  • 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

    ______________________________________________________________________

    Personal Motto: Why push the envelope when you can just open it?

    If you follow the direction given HERE[/url] you'll likely increase the number and quality of responses you get to your question.

    Jason L. Selburg
  • Thank you Jason. I had concocted a long CROSS APPLY method, but this FIRST_VALUE function is awesome. Thank you,

    Amy

  • 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

Viewing 5 posts - 1 through 4 (of 4 total)

You must be logged in to reply to this topic. Login to reply