how to fill typed dataset with joined queries ?

Discussion in 'ASP .Net' started by Ersin Gençtürk, Jan 19, 2005.

  1. hi ,

    I have 2 tables , tUser and tUserRole and I have a query like :

    select * from tUser inner join tUserRole on tUserRole.UserId=tUser.UserId
    where tUser.UserId=1

    this will return a user with associated roles.

    Also I have a typed dataset with two tables inside : tUser and tUserRole

    how can I use this typed dataset when I use the query above ? What is the
    expected behaviour ? Should I fill
    two tables of the dataset with seperate queries like :

    select * from tUser where UserId=1
    select * from tUserRole where UserId=1

    or is there any other better way ? I wonder because there are more complex
    joined queries from database.I have to map them to the dataset.
    Ersin Gençtürk, Jan 19, 2005
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  2. You need to make your mind what you want. If you want to work against 2
    tables, you have to run 2 separate queries, like you write. You can't fill 2
    tables from one select query. You can do it with a stored procedure or a
    batch query that return 2 recordsets.

    You may decide that you need only one table. For example, if you want to
    show both user and user role fields in the same grid. Than you should make
    just one table that will contain fields from the joined select.

    Eliyahu Goldin, Jan 19, 2005
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