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MS SQL Aggregate Function

  • November 18, 2008 at 6:26 pm

    #193881

    Hello,

    I have a query to select title_id, type, price and average of prices by type from titles in the pubs database. The goal is show all the fields plus the avg(price). I tried with group by clause and not able to get desired result. Could some one help me please?

    Thanks

    beginner-sql :w00t:

  • November 18, 2008 at 6:57 pm

    #900243

    Please post what you tried so we can see things like what you tried to GROUP BY. Thanks.

    --Jeff Moden

    RBAR is pronounced "ree-bar" and is a "Modenism" for Row-By-Agonizing-Row.
    First step towards the paradigm shift of writing Set Based code:
    ________Stop thinking about what you want to do to a ROW... think, instead, of what you want to do to a COLUMN.

    Change is inevitable... Change for the better is not.

    Helpful Links:
    How to post code problems
    How to Post Performance Problems
    Create a Tally Function (fnTally)

  • November 19, 2008 at 6:26 pm

    #900811

    Hello there,

    This is the Task:

    Select the title_id, type, and price from the titles table along with an average price for all tables

  • November 19, 2008 at 6:49 pm

    #900816

    kmohan39 (11/19/2008)

    Hello there,

    This is the Task:

    Select the title_id, type, and price from the titles table along with an average price for all tables

    Not what I asked for... I want to see the code that you've actually tried... not pseudo code.

    --Jeff Moden

    RBAR is pronounced "ree-bar" and is a "Modenism" for Row-By-Agonizing-Row.
    First step towards the paradigm shift of writing Set Based code:
    ________Stop thinking about what you want to do to a ROW... think, instead, of what you want to do to a COLUMN.

    Change is inevitable... Change for the better is not.

    Helpful Links:
    How to post code problems
    How to Post Performance Problems
    Create a Tally Function (fnTally)

  • November 19, 2008 at 7:27 pm

    #900820

    select title_id, type, price, avg(price)

    from titles

    group by title_id, type, price

    order by type

  • November 19, 2008 at 9:32 pm

    #900862

    SELECT t.Title_ID, t.Type, t.Price, d.AvgPrice

    FROM dbo.Titles t

    INNER JOIN

    (--==== Derived table "d" finds average Price for each Type

    SELECT Type, AVG(Price) AS AvgPrice

    FROM dbo.Titles

    GROUP BY Type) d

    ON t.Type = d.Type

    --Jeff Moden

    RBAR is pronounced "ree-bar" and is a "Modenism" for Row-By-Agonizing-Row.
    First step towards the paradigm shift of writing Set Based code:
    ________Stop thinking about what you want to do to a ROW... think, instead, of what you want to do to a COLUMN.

    Change is inevitable... Change for the better is not.

    Helpful Links:
    How to post code problems
    How to Post Performance Problems
    Create a Tally Function (fnTally)

  • November 19, 2008 at 9:43 pm

    #900865

    Thank you Jeff Moden

    newbie

    😎

  • November 19, 2008 at 10:16 pm

    #900875

    You bet. Thank you for the feedback.

    Now you know why I asked to see your query. For more information on how to get better answers quicker on future posts, take a look at the link in my signature line.

    --Jeff Moden

    RBAR is pronounced "ree-bar" and is a "Modenism" for Row-By-Agonizing-Row.
    First step towards the paradigm shift of writing Set Based code:
    ________Stop thinking about what you want to do to a ROW... think, instead, of what you want to do to a COLUMN.

    Change is inevitable... Change for the better is not.

    Helpful Links:
    How to post code problems
    How to Post Performance Problems
    Create a Tally Function (fnTally)

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