Question

I don’t know if you got what I mean, but I’ll try to explain it with an example.

Users Table

UsedId    UserName
--------  ----------
1         Mike
2         Raul

HasPrivileges Table

UsedId       PrivilegeId      
--------     --------------
1            1
1            2
1            3
2            2
2            3

Privileges Table

PrivilegeId      Privilege
-------------    ------------
1                Create
2                Edit
3                Delete

now this is two tables users and privileges that has a many-to-many relation between them, so when I select all the users associated with the privileges they have, I get the in this examples 3 records or rows in result for Mike each one contains a privilege he has.

Now I need in my application to display a list of all the users with their privileges but INDEED i don’t want my users to see a user three times to show all of his privileges or anything else instead I want it to display

User Id : 1
Name : Mike
Privileges : Create, Edit, Delete

or something close to this! ANY IDEAS GUYS !??

Answer 1

You have ASP.NET and C# in your tags. Considering that what you intend to do is a presentational issue, do it in the presentation layer (i.e. with C#) and not in the data layer (i.e. with SQL). That’s a lot easier, too.

For example, like shown here: Use LINQ to concatenate multiple rows into single row (CSV property)