Help: why python odbc module can not fetch all over?

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  • zxo102

    #1

    Help: why python odbc module can not fetch all over?

    Hi everyone,
    I need your help for using python odbc module. I have a simple
    table defined as

    create table A (
    userId char(10),
    courseid char(10),
    grade integer,
    primary key(userId,cour seId)
    )

    userId courseId grade
    1 1001 50
    1 1002 89
    2 1001 90
    2 1002 98

    in SQL server. Now I run the following query in SQL server Query
    Analyzer:

    select userId, grade from A group by grade, userId order by userId
    DESC compute count(userId), sum(grade) by userId

    and got the results in two parts for each user in the Query Analyzer:
    The results are shown like the following pattern

    userId grade <---- part1 results for user 1
    . 1 50
    1 89
    -------------------------------------
    cnt sum <--- part2 result for user 1
    2 139
    =============== ====
    userId grade <--- part1 results for user 2
    2 90
    2 98
    ---------------------------------------
    cnt sum <--- part2 results for user 2
    2 188
    =============== =====

    But when I use python odbc to fetch the results from the database in
    SQL server, I can only get part1 of results for user 2. All other
    results are gone, for example, part2 for user 2 and all for user 1.

    userId grade <---- part1 results for user 2
    . 2 90
    2 98

    Here is what I did:[color=blue][color=green][color=darkred]
    >>> import odbc
    >>> cc = odbc.odbc('dsn= student_info')
    >>> c2=cc.cursor()
    >>> c2.execute("sel ect userId, grade from A group by grade, userId order by userId DESC compute count(userId), sum(grade) by userId")
    >>> r = c2.fetchall()
    >>> print r[/color][/color][/color]
    [('2', 90), ('2', 98)]

    Any body knows what is going on with python odbc module and how to get
    "cnt" and "sum" in part 2 and others?

    Thanks for your help in advance. I really appreciate that.

    Ouyang

  • zxo102

    #2
    Re: Help: why python odbc module can not fetch all over?

    Hi Dennis,

    Thanks for your effort. I really appreciate it. It works for me
    now.

    Ouyang

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