TSQL: Nested Select with multiple results to one (comma separated) string

by Pieter Brinkman 25. August 2009 03:22

For this example I will use the default asp.net Membership tables.

Let say: I need to return all users with their roles (comma separated) in one query. After a long time Googling I found the following solution.

[code:tsql]

select
  UserName,
  (select roles.RoleName + ', '
    FROM aspnet_Roles roles
    join aspnet_UsersInRoles usersInRole on roles.RoleId = usersInRole.RoleId
    WHERE usersInRole.UserId = aspUser.UserId
    for xml path('')) as roles
from
    aspnet_Users aspUser

[/code]

Don't know if this is the best way, but it works.

Tags: , ,

TSQL

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About Me

My name is Pieter Brinkman I am Solution Architect for Sitecore in The Netherlands. My interests are mainly ASP.NET, MSSQL and Content Management Systems.

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