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Access Table Question

  • 07-04-2009 12:24pm
    #1
    Registered Users, Registered Users 2 Posts: 1,641 ✭✭✭


    Hi There,

    working on a table in access for a membership for a club, i have all the colloums set up for name, address, etc, now at the end i have the following three colloums Membership fee, Amount Due, And balance due, how do i get access to subtract amount due from membership fee, to give me the balance due.

    Thanks

    Pa

    Its Access 2007


Comments

  • Registered Users, Registered Users 2 Posts: 2,781 ✭✭✭amen


    not really an Access person but you need to look at your table design

    The account/payment information should be in a seperate table.
    Your model won't allow for multiple payments


  • Registered Users, Registered Users 2 Posts: 197 ✭✭cracker


    You shouldn't really have a calculated field in your table. You can add a calculated field to your forms,reports, queries etc but the tables should just contain the raw values.


  • Registered Users, Registered Users 2 Posts: 1,641 ✭✭✭paconnors


    cracker wrote: »
    You shouldn't really have a calculated field in your table. You can add a calculated field to your forms,reports, queries etc but the tables should just contain the raw values.

    Ok I understand that but how would I be able to get the database to pull records that contain arrears


  • Registered Users, Registered Users 2 Posts: 197 ✭✭cracker


    There are loads of ways.

    If you are using a form to display the information and the amountdue and MembershipFee are displayed on the form then add a text box to the form and set the control source to

    =[MemberShipFee]-[AmountDue]

    Or you can write a vba function to return the value and set the control source to this, overkill in your case I think

    If it is from a query then just
    select [MemberShipFee]-[AmountDue] from membership table


  • Registered Users, Registered Users 2 Posts: 1,641 ✭✭✭paconnors


    Thanks for all the help guys but i'm still stuck i forgot to mention some member pay their fees in instalments so i need to be able to pull up a query where the database looks for partly paid subs and gives of the name me the member and their remaining balance.


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  • Registered Users, Registered Users 2 Posts: 218 ✭✭Tillotson


    I'm gonna feel sick if I this is homework or something.
    I don't have Access in front of me but this is most of what you need to do. If I remember properly...
    Create 3 tables:

    Members
    Member_no Autonumber Primary Key
    Name Text
    Address Text
    Credit_Lim Number
    Balance Number

    Fees
    Fee_no Autonumber Primary Key
    Member_no Autonumber Foreign Key
    Fee_date Date
    Ammount Number

    Payments
    Payment_no Autonumber Primary Key
    Fee_no Autonumber Foreign Key
    Payment_Ammount Number
    Payment_date Date

    Go into the relationship tab and drag primary key member number to corrisponding foreign key entry in the fee table. Repeat with Fee_no.
    Checkboxes enforce referential integrity and cascade update should be checked.

    Go create > forms > more forms > forum wizard and create a form for each table.

    Next bit I'm a bit fuzzy on:
    Is there an event called "on new", or something similar
    Attach a macro to this event on fees form.
    The macro updates balance, so
    Action: Update (?)
    Arguement: balance = balance + [forms]![fees]![ammount]
    Similary a macro on the payments form
    Action: Update
    Arguement: balance = balance - [forms]![payment]![payment]

    To check the for members who have more than their credit limit outstanding create an sql statment like "select * from members where balance > cred_lim"


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