Recursive Query Help

Posted by Josh on Stack Overflow See other posts from Stack Overflow or by Josh
Published on 2010-03-29T16:11:40Z Indexed on 2010/03/29 16:33 UTC
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Filed under:

sql-server-2008

|

sql

|

recursion

|

query

|

sql-server

I have two tables in my database schema that represent an entity having a many-to-many relationship with itself.

Role  
---------------------
+RoleID 
+Name

RoleHasChildRole
---------------------
+ParentRoleID  
+ChildRoleID

Essentially, I need to to be able to write a query such that:

Given a set of roles, return the unique set of all related roles recursively.

This is an MSSQL 2008 Database.

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