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  1. #1
    Join Date
    Sep 2002
    Location
    Bangalore
    Posts
    2

    Unanswered: Best data base design

    Hi all,
    Can any one of you help me out in giving the ideal database design for the following requirement.
    I will be having two heirachy of data. One which can be accesed by the master user and others by clients. There can be n number of clients who can be there. A client can view only his details and the masters.
    A master can view data of all the clients and the master. Each clients detail is expected to be kept in a different table.

    So in an apllication if the person who logs in is a master user we need to show details of all clients.
    If the person logs in as a client A then details of only his table is to be shown.
    Can any one get back on this,
    Thanking you in advance
    Vyas

  2. #2
    Join Date
    Aug 2002
    Location
    Wilmington, Delaware USA
    Posts
    3
    For what its worth ...

    I would only use Views to allow them to see the data, and stored procedures to update.

    For viewing data, I would create an association table with logins and allowed entities


    create table SecurityControl
    (
    securitycontrol_id int identity not null ,
    user varchar(40) not null,
    company_no int not null
    )


    then in the views i would join to it like so:


    select
    ci.*
    from CompanyInfo ci
    join SecurityControl si on si.company_no = ci.company_no and suser_name() = si.user


    SQL 2000 does have row level security capability but
    1. I haven't used it enough to explain it.
    2. You didn't specific a version and this solution would be portable to most RDBMS's

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